FT 90r

Operating Manual
YAESU MUSEN CO., LTD.

1-20-2 Shimomaruko, Ota-Ku, Tokyo 146-8649, Japan
YAESU U.S.A.
17210 Edwards Rd., Cerritos, CA 90703, U.S.A.
YAESU EUROPE B.V.
P.O. Box 75525 1118 ZN, Schiphol, The Netherlands
YAESU UK LTD.
Unit 12, Sun Valley Business Park, Winnall Close
Winchester, Hampshire, SO23 0LB, U.K.
YAESU GERMANY GmbH
Am Kronberger Hang 2, D-65824 Schwalbach, Germany
YAESU HK LTD.
11th Floor Tsim Sha Tsui Centre, 66 Mody Rd.,
Tsim Sha Tsui East, Kowloon, Hong Kong
Contents
Introduction ....................................... 1 CTCSS (Cotinuous Tone
Specifications..................................... 2 Coded Squelch System) ... 28
Accessories & Options ...................... 3 DCS (Digital Code Squelch) .......... 28
Front Panel Controls & Switches....... 4 DCS Tone Search Scanning ............ 30
Right Side Connector ......................... 6 CTCSS Bell Paging ........................ 30
Rear Panel Connections ..................... 7 1750 Hz Tone Calling
Microphone Switches ........................ 8 (European Versions) ... 30
Installation ....................................... 10 DTMF Tone Generation............... 31
Preliminary Inspection ................. 10 DTMF Autodialer Operation .......... 31
Installation Tips ............................ 10 MIC Gain Control ........................ 32
Safety Information ........................ 11 Memory System Operation .............. 34
Antenna Considerations ............... 12 Memory Storage ........................... 34
Mobile Installation ....................... 14 Recalling Memories ..................... 34
Transceiver Installation ................... 14 Direct Keypad Memory Recall .... 35
Mobile Power Connections ............. 15 Home Channel Memories ............. 35
Mobile Speakers ............................. 15 Programming the
Base Station Installation ............... 16 Home Channel(s).... 35
AC Power Supplies ......................... 16 Naming and Displaying Memories ..... 36
Packet Radio Terminal Loading a Memory into the VFO . 36
Node Controller (TNC) ... 16 Memory Only Mode ..................... 37
Operation ......................................... 18 Erasing Memories ........................ 37
Basic Operation/Reception........... 18 Scanning Features ............................ 38
Turning the Power On/Off .............. 18 Scanning Operation ...................... 38
Supply Voltage Display .................. 18 Scan-Resume Options .................. 38
Adjusting the Volume and Squelch 18 Memory Skip Scanning ................ 39
RF Squelch ...................................... 18 Temporary Memory Skip ............. 39
Display Options .............................. 19 Programmable Band-Scan Limits. 39
Lock Feature ................................... 20 Smart Search Operation ............... 40
Frequency Navigation Priority Channel Monitoring ........ 41
[DIAL (VFO) Mode] ... 20 ARTS:Auto Range
Main Dial Tuning ............................ 20 Transpond System ... 43
Direct Keypad Frequency Entry ..... 21 ARTS Modes................................ 44
AM Mode Activation ...................... 21 CW ID (Morse Identifier) Set up . 44
Channel Step Selection ................... 22 Packet Operation ............................. 45
Key pad Beeper ............................... 22 Miscellaneous Settings .................... 46
Display Brightness .......................... 23 Time-Out Timer ........................... 46
Display Contrast .............................. 23 Automatic Power-Off ................... 46
Transmission ................................ 24 Cooling Fan Control ..................... 47
Power Output Setting ...................... 24 Programming the Front Panel/
PTT Locking ................................... 24 Microphone Key Functions .... 47
Repeater Splits ............................. 25 DCS Code Inversion..................... 48
Standerd Repeater Shift .................. 25 Demonstration Mode .................... 49
Automatic Repeater Shift ................ 26 Programming the DemoMessage .... 50
Separate Transmit Resetting the CPU ........................ 50
Frequency Memories ... 27 Transceiver Cloning ........................ 51
Tone Squelch Systems.................. 28 Menu System ................................... 52
Menu Selection Details ................ 53
Introduction
The FT-90R is an ultra-compact, high-power dual-band FM mobile transceiver

providing high performance on the Amateur 144 MHz and 430 MHz bands.
The FT-90R represents an engineering breakthrough in electro-mechanical con-
struction, providing 50 Watts output on 144 MHz and 35 Watts output on 430
MHz from an enclosure measuring only 100 x 30 x 138 mm (3.9 x 1.2 x 5.4)
WHD. Despite its incredibly small size, the FT-90R is a full-featured rig, provid-
ing extended receive coverage, CTCSS and DCS Tone Squelch systems, and
Yaesus exclusive ARTS (Auto-Range Transponder System) and Smart
Search features for todays active operator.
We recommend that you read this manual in its entirety, so as to get the most out of
your new FT-90R MICRO MOBILE!
FT-90R O PERATING MANUAL 1

Specifications
General
Frequency Ranges: RX: 100~230 MHz, 300~530 MHz, 810~999.975 MHz*
TX: 144-146 MHz or 144-148 MHz (144 MHz)
430-440 MHz or 430-450 MHz (430 MHz)
Channel Steps: 5/10/12.5/15/20/25/50 kHz
Emission Type: F3, F2, F1
Antenna Impedance: 50 , Unbalanced (Antenna Duplexer built-in)
Frequency Stability: 5 ppm (5 C to +60 C)
Operating Temp. Range: 20 C to +60 C
Supply Voltage: DC 13.8 V 15 %, Negative Ground
Current Consumption (approx):
350 mA (Receive, Squelched)
9.5 A (Tx, 144 MHz)
8.5 A (Tx, 430 MHz)
Case Size: 100(W) x 30(H) x 138(D) mm (w/o knobs)
Weight: 640 g (1.41 lb.)
* Cellular and digital telephone frequencies are blocked and cannot be restored.
Transmitter
RF Power Output: 50/20/10/5 W (144 MHz), 35/20/10/5 W (430 MHz)
Modulation Type: Variable Reactance
Maximum Deviation: 5 kHz
Spurious Emissions: At least 60 dB below fundamental
Microphone Impedance: 2 k
Receiver
Circuit Type: Double-Conversion Superheterodyne
Intermediate Frequencies: 45.05 MHz and 455 kHz
Sensitivity: 0.18 V @12 dB SINAD
Selectivity: 12 kHz/24 kHz (6 dB/60 dB)
AF Output: 2 W @ 8 for 10 % THD
AF Output Impedance: 4 16
Specifications are subject to change without notice or obligation.

Specifications guaranteed only within the 2m and 70cm amateur bands.
Frequency range may very according to local requirements and regulations.
2 FT-90R O PERATING MANUAL

Accessories & Options
SUPPLIED ACCESSORIES
Microphone (See list below)
Mobile Mounting Bracket MMB-68
DC Power Cord w/Fuse (Part # T9021715)
Spare 15A Fuse
OPTIONAL ACCESSORIES
MH-36A6J DTMF Microphone
MH-42A6J Hand Microphone
YSK-90 Separation Kit
SP-7 External Loudspeaker
MEK-2 Microphone Extension Kit
Availability of accessories may vary. Some accessories are supplied as standard
per local requirements, while others may be unavailable in some regions. Con-
sult your Yaesu dealer for details regarding these and any newly available op-
tions. Connection of any non- Yaesu-approved accessory, should it cause dam-
age, may void the Limited Warranty on this apparatus.

Front Panel Controls & Switches
VOL Knob
This control adjusts the volume level of the receivers audio. Clockwise rota-
tion increases the volume level.
SQL Knob
This control sets the threshold level at which received signals (or noise) will
open the squelch. It should be advanced clockwise just to the point where the
noise is silenced, so as to provide the best sensitivity to weak signals.
D ISPLAY
The display consists of segmented digits which indicate operating frequency,
status of functions, alpha/numeric memory labels, and MENU functions.
Key
During split-frequency operation, such as through a repeater, this key reverses
the transmit and receive frequencies. The function of this key can also be
changed to another function via MENU #22 (see page 56).
Key
This key selects the MAIN DIALs band of operation: VHF or UHF.
During Memory operation, this key selects display of the channel frequency
or the Alpha/Numeric name of the channel.
Press and hold in this key for one second to activate the Set (MENU) Mode.
Key
This key toggles repeater shift: Automatic Repeater Shift (ARS), Plus
shift (+), Minus shift (), or Simplex. The function of this key can also be
changed to another function via MENU #23 (see page 56).

Front Panel Controls & Switches
Button
This button selects the items to be displayed on the bottom line of the LCD:
Functions of the keys below the display;
DC Voltage; or
Frequency Control Mode.
Press and hold in this button for one second to activate the SMART SEARCHT M
feature.
PWR Switch
This is the main ON/OFF switch for the transceiver.
MAIN DIAL Knob

This 20-position detented rotary switch is the main tuning dial for the trans-
ceiver. It is used for most tuning, memory selection, and function setting tasks
on the transceiver.

Right Side Connector
MIC Jack
MIC Jack
This 6-pin modular jack accepts transmit audio, and provides 9600 bps data
for Packet Operation.
Pin 1: SW 2 (multi-function switching)
Pin 2: 9600 bps Packet Data Output
(Impedance:10 k Maximum Output:500 mV pp)
Pin 3: +9V
Pin 4: GND
Pin 5: Microphone Input
Pin 6: SW 1 (multi-function switching)

Rear Panel Connections
EXT SP Jack
This 2-conductor, 3.5-mm mini phone jack provides receiver audio output for
an optional external speaker. The audio impedance is 8, and the level varies
according to the setting of the front panels VOL control. Inserting a plug into
this jack disables audio from the transceivers internal speaker. This jack may
also be used as a source of receiver audio during 1200 bps Packet operation.
13.8 VDC Cable Pigtail w/Fuse

This is the DC power supply connection for the transceiver.
ANTENNA Connector
Connect a dual-band antennas 50 cable to this M-type (SO-239) coaxial
connector (European versions are equipped with a Type-N connector). Be
certain to use the proper type of plug for connection of the coaxial cable.

Microphone Switches

MH-36A6J DTMF Microphone
DWN Button
Press this button to tune toward a lower VFO frequency (or lower Memory
Channel number).
Press and hold this button in for one second to start scanning toward a lower
VFO frequency (or lower Memory Channel number).
UP Button
Press this button to tune toward a higher VFO frequency (or higher Memory
Channel number).
Press and hold this button in for one second to start scanning toward a higher
VFO frequency (or higher Memory Channel number).
PTT Switch
Press this switch to transmit, and release it to receive.
ACC Button
Press this button to activate the Priority Channel monitoring system.
In the European version, press this button to transmit a 1750 Hz Burst Tone for
repeater access.

Microphone Switches
VFO/MR Button
This button switches operation between the VFO and Memory modes.
LOCK Switch
Slide this switch upward to lock (disable) the microphones buttons.
LAMP Switch
Slide this switch upward to activate the keypads illumination, for easier view-
ing at night.
KEYPAD (MH-36 A6J only)
These 16 keys generate DTMF tones during transmission.

In the receive mode, these 16 keys can be used for direct frequency entry and/
or direct numeric recall of Memory channels.
P1 Button
This button selects the Tone Squelch type: CTCSS, DCS, BELL, or Off (no
tone).
P2 Button
This key selects the transmitter power output level:
HIGH, MID1 (Medium 1), MID2 (Medium 2), or LOW.
Note: The functions of the ACC, P1, and P2 buttons can be changed via the
MENU system. See page 47.
MH-42A6J Hand Microphone

The MH-42A6J is similar to the MH-36A6J, but the MH-42A6J does not in-
clude a DTMF keypad.

Installation
This chapter describes the installation procedure for integrating the FT-90R into
a typical amateur radio station. It is presumed that you possess technical knowl-
edge and conceptual understanding consistent with your status as a licensed
radio amateur. Please take some extra time to make certain that the important safety
and technical requirements detailed in this chapter are followed closely.
Preliminary Inspection
Inspect the transceiver visually immediately upon opening the packing carton.
Confirm that all controls and switches work freely, and inspect the cabinet for any
damage. Gently shake the transceiver to verify that no internal components have
been shaken loose due to rough handling during shipping.
If any evidence of damage is discovered, document it thoroughly and contact the
shipping company (or your local dealer, if the unit was purchased over-the-counter)
so as to get instructions regarding the prompt resolution of the damage situation.
Be certain to save the shipping carton, especially if there are any punctures or
other evidence of damage incurred during shipping; if it is necessary to return the
unit for service or replacement, use the original packing materials but put the
entire package inside another packing carton, so as to preserve the evidence of
shipping damage for insurance purposes.
Installation Tips
To ensure long life of the components, be certain to provide adequate ventilation
around the cabinet of the FT-90R.
Do not install the transceiver on top of another heat-generating device (such as a
power supply or amplifier), and do not place equipment, books, or papers on top
of the FT-90R. Avoid heating vents and window locations that could expose the
transceiver to excessive direct sunlight, especially in hot climates. The FT-90R
should not be used in an environment where the ambient temperature exceeds
+60 C (140 F).

Installation
Safety Information
The FT-90R is an electrical apparatus, as well as a generator of RF (Radio Fre-
quency) energy, and you should exercise all safety precautions as are appropriate
for this type of device. These safety tips apply to any device installed in a well-
designed amateur radio station.
ceiver or antenna installation.

Do not allow unsupervised children to play in the vicinity of your trans-
Be certain to wrap any wire or cable splices thoroughly with insulating

electrical tape, to prevent short circuits.
Do not route cables or wires through door jambs or other locations where,
through wear and tear, they may become frayed and shorted to ground or to
each other.
Do not allow anyone to stand in front of a directional antenna while you
are transmitting into that antenna, especially on UHF. Do not install a di-
rectional antenna in any location where humans or pets may be walking in
the main directional lobe of the antennas radiation pattern.
In mobile installations, it is preferable to mount your antenna on top of the
roof of the vehicle, if feasible, so as to utilize the car body as a counter-
poise for the antenna and raise the radiation pattern as far away from pas-
sengers as possible.
During vehicular operation when stopped (in a parking lot, for example),
make it a practice to switch to the MID2 or LOW power options if there
are people walking nearby.
Never wear dual-earmuff headphones while driving a vehicle.

Installation
Antenna Considerations
The FT-90R is designed for use with antennas presenting an impedance of near 50
at all operating frequencies. The antenna (or a 50 dummy load) should be
connected whenever the transceiver is turned on, to avoid damage that could oth-
erwise result if transmission occurs accidentally without an antenna.
Ensure that your antenna is designed to handle 50 Watts of transmitter power.
Some magnetic-mount mobile antennas, designed for use with hand-held trans-
ceivers, may not be capable of this power level. Consult the antenna manufacturers
specification sheet for details.
Most all FM work is performed using vertical polarization. When installing a
directional antenna such as a Yagi or Quad, be certain to orient it so as to produce
vertical polarization, unless you are engaged in a special operating situation where
horizontal polarization is used.
Note that this transceiver is designed with wide frequency coverage in the VHF
and UHF spectra. For general listening, you may wish to have a broadband an-
tenna such as a discone available, because a directional antenna such as a Yagi
will have degraded performance outside the Amateur bands.
Excellent reference texts and computer software are available for the design and
optimization of VHF and UHF antennas. Your dealer should be able to assist you
with all aspects of your antenna installation requirements.
Use high-quality 50 coaxial cable for the lead-in to your FT-90R transceiver.
All efforts at providing an efficient antenna system will be wasted if poor quality,
lossy coaxial cable is used. Losses in coaxial lines increase as the frequency in-
creases, so an 8-meter-long (25) coaxial line with only dB of loss at 28 MHz
may have a loss of 2 dB or more at 440 MHz; choose your coaxial cable carefully
based on the installation location (mobile vs. base) and the overall length of the
cable required (for very short runs of cable in a mobile installation, the smaller,
more flexible cable types may be acceptable).

Installation
For reference, the chart below shows approximate loss figures for typically-avail-
able coaxial cables frequently used in VHF/UHF installations.
Loss in dB per 30 m (100 feet) for Selected 50 Coaxial Cables
(Assumes 50 Input/Output Terminations)
Cable Type Loss: 144 MHz Loss: 440 MHz
RG-58A 6.5 13
RG-58 Foam 4.7 8.5
RG-8A/-213 3.0 5.7
RG-8 Foam 2.0 3.7
Belden 9913 1.5 2.7
1/2" Hardline 1.0 1.8
7/8" Hardline 0.7 1.3
Loss figures are approximate; consult cable manufacturers

catalogs for complete specifications.
In outdoor installations, be certain to weatherproof all connectors thoroughly, as
water entering a coaxial cable will cause losses to escalate rapidly, thus diminish-
ing your communications effectiveness. The use of the shortest possible length of
the highest quality coaxial cable that fits within your budget will ensure the best
performance from your FT-90R.

Installation
Mobile Installation
The FT-90R must only be installed in vehicles having a negative ground electri-
cal system. Mount the transceiver where the display, controls, and microphone are
easily accessible, using the supplied MMB-68 mounting bracket. The transceiver
may be installed in any position, but should not be positioned near a heating vent
nor anywhere where it might interfere with driving (either visually or mechani-
cally). Make sure to provide plenty of space at the rear of the transceiver so that
air can flow freely through the heatsink. Refer to the diagrams showing proper
installation procedures.
Transceiver Installation
r Choose a mounting location with sufficient clearance for the transceiver, plus
space for ventilation around the heat sink.
Using the mounting bracket as a template for the mounting holes, use a 4.8 mm
(3/16) bit to drill the mounting holes, and secure the mounting bracket with the
supplied screws, washers, and nuts (see diagram).
r Position the transceiver in the bracket so that the holes in the side are aligned
with those in the bracket, and bolt the transceiver into place using the supplied
short screws and flat washers.

Installation
Mobile Power Connections
To minimize voltage drop and avoid blowing the vehicles fuses, connect the
supplied DC power cable directly to the battery terminals. Do not attempt to defeat
or bypass the DC cables fuseit is there to protect you, your transceiver, and
your vehicles electrical system.
Warning!
Never apply AC power to the power cable of the FT-90R, nor DC voltage
greater than 15.8 Volts. When replacing the fuse, only use a 15-A fast-
blow type. Failure to observe these safety precautions will void the Lim-
ited Warranty on this product.
r Before connecting the transceiver, check the voltage at the battery terminals
while revving the engine. If the voltage exceeds 15 Volts, adjust the vehicles
voltage regulator before proceeding with installation.
r Connect the RED power cable lead to the POSITIVE (+) battery terminal, and
the BLACK power cable lead to the NEGATIVE (-) terminal. If you need to
extend the power cable, use #12 AWG or larger insulated, stranded copper
wire. Solder the splice connections carefully, and wrap the connections thor-
oughly with insulating electrical tape.
r Before connecting the cable to the transceiver, verify the voltage and polarity
of the voltage at the transceiver end of the DC cable using a DC voltmeter.
Now connect the transceiver to the DC cable.
Mobile Speakers
The optional SP-7 or MLS-100 External Speakers include their own swivel-type
mounting brackets, and are available from your Yaesu dealer.
Other external speakers may be used with the FT-90R, if they present the speci-
fied 4-16 impedance and are capable of handling the 2 Watts of audio output
supplied by the FT-90R.

Installation
Base Station Installation
The FT-90R is ideal for base station use as well as in mobile installations. The FT-
90R is specifically designed to integrate into your station easily, using the infor-
mation to follow as a reference.
AC Power Supplies
Operation of the FT-90R from an AC line requires a power source capable of
providing at least 10 Amps continuously at 13.8 Volts DC. The FP-1023A, FP-
1025A, and FP-1030A AC Power Supplies are available from your Yaesu dealer
to satisfy these requirements. Other well-regulated power supplies may be used,
as well, if they meet the above voltage and current specifications.
Use the DC power cable supplied with your transceiver for making power connec-
tions to the power supply. Connect the RED power cable lead to the POSITIVE
(+) power supply terminal, and connect the BLACK power cable lead to the NEGA-
TIVE (-) power supply terminal.
Packet Radio Terminal Node Controller (TNC)

The extremely compact size of the FT-90R does not allow the inclusion of a
dedicated packet interfacing jack. However, all connections required for either
1200 bps or 9600 bps packet operation are provided, either on the front or rear
panel.
1200 BPS PACKET SETUP
1. Connect the TNCs Data In (RX Audio) line to the EXT SP jack on the rear
panel of the FT-90R.
2. Connect the TNCs Ground, Data Out (TX Audio), and PTT lines to Pins
,, and of the right side MIC jack (see illustration).
3. Press and hold in the key for one second to enter the Set (MENU )
mode.

Installation
4. Rotate the MAIN DIAL knob to select 2 1 P C K T on the display; this item allows
setting of the Packet baud rate.
5. If 1 2 0 0 b p s does not appear on the display, press the key once to
change the baud rate from 9600 bps to 1200 bps. Note that, if you are storing
this channel into a memory, the baud rate will be memorized along with the
frequency data.
6. Press and hold in the key for 1.5 second to save the new setting and
exit to normal operation.
7. The RX Audio level sent to the TNC from the radio may be adjusted using the
front panels VOL control. The TX Audio level applied to the FT-90R from the
TNC should be adjusted at the TNC side.
9600 BPS PACKET SETUP

1. Connect the TNCs Data In (RX Audio), Ground, Data Out (TX Audio)
and PTT lines to Pins , , and of the right side MIC jack (see illustra-
tion).
2. Press and hold in the key for one second to enter the Set (MENU )
mode.
3. Rotate the MAIN DIAL knob to select 2 1 P C K T on the display; this item allows
setting of the Packet baud rate.
4. If 9 6 0 0 b p s does not appear on the display, press the key once to
change the baud rate from 1200 bps to 9600 bps. Note that, if you are storing
this channel into a memory, the baud rate will be memorized along with the
frequency data.
5. Press and hold in the key for 1.5 second to save the new setting and exit
to normal operation.
6. The RX Audio level sent to the TNC from the radio is fixed at a level compatible
with most all commonly-available TNCs on the market. The TX Data level ap-
plied to the FT-90R from the TNC should be adjusted at the TNC side. The
output deviation level is critical, and usually should be set to 2.75 kHz of
deviation (tolerance: 0.25 kHz).

Operation
Basic Operation/Reception
Turning the Power On/Off
Press the PWR switch momentarily to turn the radio on.
To turn the radio off, press and hold in the PWR switch for
second.
Supply Voltage Display
When you turn on the radio, the current DC supply voltage is indicated on the
display for one second. After this interval, the display will resume its normal
indication of the operating frequency.
To view the supply voltage at any time during opera-
tion, press the button (repeatedly, if neces-
sary) until you see the current DC supply voltage indicated on the display.
Adjusting the Volume and Squelch
At first, set the SQL control fully counter-clockwise.
Now you may rotate the VOL control clockwise to
adjust the receiver volume for a comfortable listening
level, using the background noise as a reference.
To set the squelch, turn the SQL control clockwise a slightly past the point where
the background band noise is muted. This is the point of best sensitivity to weak
signals, and we recommend that you not rotate the VOL control very much past
the point where the background noise is just silenced.
RF Squelch
A special RF SQUELCH feature is provided on this radio. This feature allows you
to set the squelch so that only signals exceeding a prescribed S-meter level will
open the squelch.
To set up the RF SQUELCH circuit for operation, use the following procedure:
1. Press and hold the key for one second, then rotate the MAIN DIAL knob
to select 2 7 R f S q L .
2. Press the key to select the desired signal strength level for the squelch
threshold (S - 3 , S - 5 , or S - F U L L ). The default setting is OFF.
4. Finally, carefully advance the SQL control to the point where the background
band noise is just silenced.
This adjustment can be set independently for each band. See the instructions re-
garding band change below.

Operation
Display Options
The area below the frequency display provides three different information win-
dows:
VOLTAGE DISPLAY Indication of DC supply voltage.
CONTROL MODE Display of the current frequency control mode:
V VFO
M Memory
m Memory Only Mode
P Priority Channel Scanning
p Programmable Memory Scan (Band Limits)
KEY FUNCTIONS Indication of the functions of the keys below the display.
The default values are:
RV V (REVERSE)
VU (VHF/UHF) in VFO Mode
(FREQUENCY/ALPHA) in Memory Mode
RP (RPTR)
To change the display mode, just press the key momentarily. Each press of
the key toggles the display to the next option:

Voltage Display Control Mode Key Functions
The functions of the and keys in the KEY FUNCTION mode can
be changed using MENU items #22 ( ) and #23 ( ). See page 56 for
details.
Important Note
The operating instructions in this manual are based on the default settings
of the front panel and microphone keys.
If you move a function to a different key using the MENU, make notes in the
manual as to which key has been assigned that function.

Operation
LOCK Feature
If nothing happens when you press a button, the panel may be locked (this
feature is normally used to prevent accidental changes to the settings of controls
and switches).
To unlock the front panel, use the following procedure:
1. Press and hold in the key for one second, then rotate the MAIN D IAL
knob to select 2 0 L O C K .
2. Press the key to change the display to O F F .
To re-lock the front panel, select O N in step 2 above.
Changing Bands
Press the key (momentarily) to change the operating band between VHF
and UHF.
Frequency Navigation [DIAL (VFO) Mode]

MAIN DIAL Tuning
This mode is used for choosing a frequency within the selected band of operation.
In the VFO mode, the MAIN DIAL knob and microphone [UP ] and [DWN] but-
tons allow the Variable Frequency Oscillator (VFO) to tune in the selected step
size (or in 1 or 10 MHz steps). When scanning in the VFO mode, the same step
sizes are used as in manual tuning.
To select the 1 MHz range in which you wish to operate, press the MAIN DIAL knob
momentarily, then rotate the MAIN D IAL knob. All three MHz digits of the fre-
quency display will blink while 1 MHz Tuning is enabled. Press the MAIN DIAL
knob again (momentarily), then rotate the MAIN D IAL knob to tune around the
selected band in the normal synthesizer steps.
To select the 10 MHz range in which you wish to operate, press and hold in the
MAIN DIAL knob for second, then rotate the MAIN D IAL knob. The 10 MHz and
100 MHz digits of the frequency display will blink while 10 MHz Tuning is
enabled. Press and hold in the MAIN D IAL knob again (for more than second);
you will now be tuning in 1 MHz steps. Press the MAIN DIAL knob once more, you
may now rotate the MAIN DIAL knob to tune around the band in the normal synthe-
sizer steps.

Operation
Heres an example of how to make a major frequency excursion:
1. First press and hold in the MAIN DIAL knob for second. You will observe that
the 100 MHz and 10 MHz display digits are blinking, as you have now selected
the 10 MHz Step frequency selection mode.
2. Rotate the MAIN D IAL knob to select a 10 MHz multiple nearest the desired
operating frequency. Once you have reached the nearest 10 MHz step, press the
MAIN DIAL knob momentarily to put the transceiver in the 1 MHz step tuning
mode.
3. Now rotate the MAIN DIAL knob to select the desired 1 MHz segment, then press
the MAIN D IAL knob momentarily again. The transceiver will now be ready for
tuning the band in its regular tuning steps.
Direct Keypad Frequency Entry (requires MH-36A6J)

The desired operating frequency may be entered directly from the microphones
keypad.
To enter a frequency from the keypad, just press the numbered digits on the key-
pad in the proper sequence. To round all digits to the right of the current digit to
0, press the [#] key.
Examples:
To enter 146.520 MHz, press .
To enter 433.000 MHz, press .
AM Mode Activation
This radio automatically selects the AM mode whenever the (VHF) frequency is
set anywhere within the range 110-136 MHz, so as to allow monitoring of aircraft
communications in this range.
You may have some reason, however, to want to select the FM mode within
this frequency range, or to change it back to AM from the FM mode. If so,
use the following procedure:
knob to select 3 8 A M .
2. Press the key to select I N H I B I T . This setting inhibits the activation of
the AM mode. The other settings are A M (forcing the mode to be AM) and
A U T O (automatic mode selection, per the above description).

Operation
Channel Step Selection
Tuning steps are factory preset to default increments which are appropriate for the
country to which this radio is exported. Different steps may be preset for VHF and
UHF, as well, if appropriate for your area. For example, on the U.S. version, the
default steps for VHF are 5 kHz, while on UHF the default steps are 25 kHz.
To change to another step size, use the following procedure:
1. First select the operating band (VHF or UHF) on which you wish to modify the
tuning steps. Press the key momentarily to change bands, if needed.
knob to select 3 2 S T E P .
3. Press either the or key to select the desired step size. The
available steps are 5 . 0 /1 0 . 0 /1 2 . 5 /1 5 . 0 /2 0 . 0 /2 5 . 0 /5 0 . 0 (kHz/step).
Keypad Beeper
The key/button beeper provides useful audible feedback whenever a button is
pressed. Each key and button has a different beep pitch, and each function has a
unique beep combination.
If you want to turn the beeper off (or back on again):
knob to select 0 6 B E E P .
2. Press the key to change the display to O F F .
The volume level of the beeper is fixed, and is not affected by the setting of the
Volume control.

Operation
Display Brightness
The light blue display illumination has been specially engineered to provide high
visibility over a wide range of ambient lighting situations.
The brightness of the display is manually adjustable, using the following pro-
cedure:
knob to select 1 0 D D i m .
2. Press either the or key to select a comfortable brightness level
(d 1 , d 2 , d 3 , d 4 , or O F F ).
Display Contrast
The contrast of the display is manually adjustable in this radio, as well, using
the following procedure:
knob to select 0 9 D C o n .
2. Press either the or key to select a comfortable contrast level
(0 ~ 1 2 ).

Operation
Transmission
To transmit, simply close the PTT (Push To Talk) switch on the microphone when
the frequency is clear. Hold the microphone approximately 25 mm (1) from your
mouth, and speak into the microphone in a normal voice level. When your trans-
mission is complete, release the PTT switch; the transceiver will revert to the
receive mode.
Power Output Setting

Four power output levels are available on this transceiver: 5 watts (L O W ), 10
watts (M I D 2 ), 20 watts (M I D 1 ) and 50 watts (VHF) or 35 watts (UHF) on H I G H .
To change the power level, press the front panels [P2] button on the microphone.
Each time you press the [P2] button, the new power level will be displayed for a
few seconds, then the regular display mode will reappear.
The power level may be stored in a memory register, if desired.
PTT Locking
The PTT circuitry may be locked out, so as to prevent unauthorized or otherwise
undesired transmission.
To lock out the PTT and prevent transmission as following:
knob to select 1 9 L c k T x .
2. Press the key to select the desired locking mode:
B A N D A : PTT disabled on VHF only;
B A N D B : PTT disabled on UHF only; or
BOTH: PTT disabled on both the VHF and UHF bands.
To cancel the PTT lockout feature, select O F F in step 2 above.

Operation
Repeater Splits
This transceiver offers three methods of setting up split frequency operation
on repeaters:
Manual selection of preset repeater shifts;
Automatic Repeater Shift (ARS), providing automatic activation of repeater
shifts during designated repeater frequency subbands; and
Independently stored transmit and receive frequencies (typically not corre-
sponding to established repeater frequency shifts).
Standard Repeater Shift

To activate the repeater shift, just press the key. The available choices
will appear in the following order with each press of the key:
(A R S ) Automatic Repeater Shift ( ) Minus shift (+ ) Plus shift
(O F F ) Simplex (A R S ) ...
With repeater shift activated, you can temporarily reverse the transmit and receive
frequencies by pressing the key. Use this feature to display the repeater
uplink frequency without transmitting, and to check the strength of signals on the
uplink frequency (so as to determine whether or not a particular station is within
Simplex range, for example). The r icon will appear at the bottom left side of
the display while Reverse shift is activated.
The default repeater offsets are fixed at 600 kHz on the VHF band and 1.6/
5.0/7.6 MHz on the UHF band (depending on your countrys requirements)
from the factory. You can change the standard offset, if needed, using the
following procedure:
1. Set the transceiver to the band on which you wish to change the standard re-
peater shift (VHF or UHF).
knob to select 3 0 S h i f t .
3. Press either the or key to set the desired offset. Note that the
resolution of the standard repeater shift is to the nearest 50 kHz multiple.
5. If you wish to change the standard offset on the other band, repeat steps 1
through 4 above.

Operation
Automatic Repeater Shift
The ARS (Automatic Repeater Shift) feature in the FT-90R allows easy and con-
venient repeater operation by automatically activating the repeater shift function
whenever you tune to a standard repeater sub-band. The ARS function is preset at
the factory to conform to the bandplans for the country to which it is exported.
The ARS function is enabled at the factory. To disable it:
Press the key, as many times as necessary, so that O F F appears on the
display.
To re-enable ARS:
Press the key, as needed, to set the display to A R S .
ARS operation is independent on the VHF and UHF channels. Therefore, you are
allowed to have ARS enabled on VHF but disabled on UHF, if you like.

Operation
Separate Transmit Frequency Memories
All memory channels can store independent receive and transmit frequencies, to
accommodate occasional odd splits (non-standard offsets) with greater fre-
quency resolution than is available using the standard shift feature.
Memory system operation will be detailed in a later section; here is the procedure
for storing and recalling an odd split using a Memory channel:
1. First store the receive (repeater output) frequency.
In the VFO mode, tune the transceiver to the de-
sired receive frequency. Now press and hold in
the [VFO/MR] button on the microphone for one
second. Notice that the display is now blinking.
2. Within five seconds of pressing the [VFO/MR]
button, use the MAIN DIAL knob or microphones
[ UP ] / [ D W N] buttons to select the desired
Memory channel for storage (occupied memory
channels will show the currently-memorized fre-
quency, while open channels will be blank).
3. Now press the [VFO/MR] button momentarily to
store the receive frequency into the selected
memory.
4. Next store the transmit (repeater input) frequency.
Since you are still in the VFO mode, tune the trans-
ceiver to the desired transmit frequency.
5. Now press and hold the [VFO/MR] button for one second. The display will
again blink.
6. Press and hold in the PTT switch, and press the [VFO/MR] button momentarily
while holding in the PTT switch. This will not cause transmission, but rather it
will instruct the transceiver that you are programming a separate transmit fre-
quency into memory.
7. If you tune off the displayed frequency, you can now return to the just-stored
Memory channel by pressing the [VFO/MR] button momentarily.

Operation
Tone Squelch Systems
These systems allow silently monitoring until a call directed to you is received,
and offer privacy on an otherwise busy channel.
CTCSS (Continuous Tone Coded Squelch System)

This system superimposes a continuous, subaudible (low-frequency) tone on your
transmitted audio. When decoded at the other station, this allows their squelch to
open so as to receive your transmission. Some closed repeaters use this to limit
access, or to prevent signals intended for other repeaters (with the same input
frequency) in fringe areas from locking up the repeater. There are 47 selectable
CTCSS tones.
DCS (Digital Code Squelch)

DCS operation modulates a subaudible tone according to a digital protocol (con-
tinuous 32-bit synchronous code). DCS is widely used in the commercial land-
mobile industry because of its superior performance, and its 104 unique codes
offer greater tone selection than CTCSS.
To use either CTCSS or DCS, both stations must be on the same operating fre-
quency, and must have selected the same CTCSS tone or DCS code.
To select and activate CTCSS or DCS operation:
Press the [P1] button to select the desired squelch type from the following:
m E N C (Encode) appears when the CTCSS tone generator is activated for
transmission only.
m E N C /D E C (Encode & Decode) appears when the CTCSS tone squelch is
activated for both TX & RX (only signals encoded with the matching tone
will open the squelch; your radio will remain silent otherwise).
m B E L L (CTCSS Bell Paging) appears when CTCSS Bell Paging is acti-
vated, as described in detail later.
m D C S (Digital Code Squelch) appears when Digital Code Squelch system
(TX & RX) is active.
m O F F (No tone or digital code system activated)
Wait a few seconds; the display will revert to its normal status, and your new
CTCSS or DCS operating mode will be saved.

Operation
For the discussion below, let us assume that the [P1] key is in its default setting
(selection of Tone options). If not, one of the programmable keys must be as-
signed the TONE function, per the instructions on pages 47 and 48.
1. When you have chosen the desired operating frequency, press the [ P1 ] key
momentarily. The display will indicate O F F if no CTCSS or DCS code is
currently engaged.
2. Within three seconds, press the [P1] key as many times as required to activate
the desired Tone mode. The available options are:
E N C (CTCSS Encoder) The current tone will be shown at the bottom
of the display.
E N C /D E C (CTCSS Encoder/Decoder)
The current tone will be shown at the bottom
of the display.
B E L L (CTCSS Bell Paging) The current tone will be shown at the bottom
of the display.
D C S (DCS Encoder/Decoder) The current DCS Code # will be shown at the
bottom of the display.
OFF No CTCSS/DCS tone or code is active.
3. When you have made your selection from the above list, press the microphones
[UP] or [DWN] key, as many times as required, to select the desired CTCSS
Tone Frequency or DCS Code #.
4. When you have completed your selections, wait until the Tone Programming
display disappers; you may now resume normal operation. If you are working
on a Memory channel, you should re-memorize the changes you have just made.
Note:
It is not possible to store a different CTCSS tone frequency or DCS code on the
uplink and downlink of a repeater.

Operation
DCS Tone Search Scanning
In operating situations where you dont know the DCS code being used by another
station, you can command the radio to listen to the incoming signal and scan in
search of the DCS code being used.
To scan for the DCS code in use:
1. Set the radio up for the DCS operation.
knob to select 1 3 D C S .
3. Press the key to start scanning for the incoming DCS tone.
When the radio detects the correct tone, it halts on that tone, and audio is allowed
to pass. The tone code will be shown at the lower left side of the display, and you
may then set MENU #12 to the same DCS code, if you wish to store the frequency
into memory.
Press and hold in the key for one second to exit to normal operation.
CTCSS Bell Paging

Bell Paging adds an alert ringer to CTCSS tone squelch operation, for added con-
venience. When you receive a call with a matching CTCSS tone, the ringer sounds
to alert you to the presence of the incoming call.
To activate CTCSS Bell operation, press the microphones [P1] button until B E L L
appears on the display.
As before, calls without a matching CTCSS tone will be ignored. Those with a
matching tone will cause the transceiver to ring as the squelch opens while the
caller transmits. Note that other stations do not need to have the CTCSS Bell
function to call you; they can just use standard CTCSS encoding.
When you reply to a CTCSS Bell call, you may want to turn off the Bell function,
or else the transceiver will ring every time your squelch opens.
You can store CTCSS Bell Paging as a tone mode in a memory, as you can do
with different CTCSS/DCS tone and encode/decode states.
1750 Hz Tone Calling (European Versions)

In the European versions of the FT-90R, press the [ ACC] button on the micro-
phone to transmit a 1750 Hz Burst Tone for repeater access.
If you own a non-European version of the FT-90R, but plan on visiting a country
which requires a 1750 Hz tone for repeater access, you may use MENU #26 to set
up the ACC key for 1750 Hz Tone operation. See page 57 for details.

Operation
DTMF Tone Generation
The white keys (with numbers, letters, or the /# characters printed on them) on
the microphone may be used for manual sending of DTMF tones for autopatch or
repeater control use. Just press the PTT switch, and hold it in, while pressing the
desired keys.
DTMF Autodialer Operation

Eight DTMF Autodialer memories are available on the FT-90R. These DTMF
Autodialer memories can store up to 16 digits of a telephone number for repeater
autopatch or other use.
To load DTMF Autodialer memories, use following procedure:
knob to select 1 7 D T M F w .
2. Press the key, as needed, to select the DTMF Autodialer memory chan-
nel number into which you wish store a telephone number (1 to 8 ).
3. Press the key momentarily..
4. Press the or key to select the first digit of the telephone num-
ber you wish to store.
5. When you have selected the correct digit, press the key momentarily..
6. Now press the or key to select the second of 16 available
digits in the current DTMF Autodialer memory. Press the key (mo-
mentarily).
7. Repeat this procedure for each digit in the telephone number.
8. When entry of all digits is complete, press and hold in the key for one
second. This locks the DTMF string into the current register. You may now
press the key momentarily to review your entry for accuracy..
9. Press the key to select another DTMF Autodialer memory channel,
and repeat the process described above, beginning in step 2. When you are
done programming all desired DTMF Autodialer memory channels, press and
hold in the key for 1.5 second to exit to normal operation.
To transmit the memorized telephone humber, use the following procedure:
1. With the transceiver set to MENU #17 (D T M F w ), press the key, as
needed, to select the DTMF Autodialer memory channel you wish to send.
If you cant remember what number is stored in a particular memory, just press
momentarily to review the memorys contents.
2. Press and hold in the PTT key, then press the key momentarily while
holding in the PTT key. The DTMF string will be transmitted automatically.
Once you have pressed the button in this step, you can release the
PTT switch, as the Autodialer transmits the entire DTMF string automatically.

Operation
The speed at which the DTMF digits are sent can be changed. Two speed levels
are available: Low (10 digits per second) and High (20 digits per second, the
default setting).
To toggle between Low and High speed, use the following procedure:
knob to select 1 6 D T M F s .
2. Press the key to select the desired speed: 5 0 m s (High speed) or
1 0 0 m s (Low speed).
You can also set a longer delay between the time the key is pressed
and the first DTMF digit is sent. To set the delay time, use the following
procedure:
knob to select 1 5 D T M F d .
2. Press either the or key to select the desired speed from the
available choices (5 0 /2 5 0 /4 5 0 /7 5 0 /1 0 0 0 ms).
MIC Gain Control

You can reduce the microphone input level when operating on tightly-clustered
frequencies (channel spacing of 12.5- or 15-kHz). This will reduce the transmitter
deviation, thus minimizing interference to other users.
To reduce the microphone input level:
knob to select 3 6 T x N a r .
2. Press the key to change the display to O N .
To restore the microphone input level to the normal setting, select O F F in step 2
above.

Note

Memory System Operation
The FT-90R includes a versatile Memory system which makes everyday opera-
tion more efficient. The Memory System provides 180 standard memories, plus
two pairs of band-limiting memories, and a one-touch HOME channel for each
band.
For ease in recognition of a channels function, Alpha-Numeric labels can be ap-
pended to the frequency information.
The discussion below presumes that the function of the microphones [VFO/MR]
button is set to the default V F O /M R configuration. If you have used any of MENU
items 22~26 to assign the V F O /M R function to another microphone button or
front panel key, use whatever key you have assigned for the V F O /M R function
when the [VFO/MR] button is called for in the sections to follow. See page 47 for
details on programming the microphone buttons and front panel keys.
Memory Storage
To store a frequency into memory:
1. In the VFO mode, select the desired frequency, repeater shift, CTCSS tone, TX
power level, and, if this is a packet channel, the desired baud rate (1200/9600).
2. Press and hold in the [VFO/MR] button on the microphone for one second. The
display will blink; if a frequency is displayed along with a blinking channel
number, this will indicate that the channel already has frequency data stored on it.
3. Within five seconds of pressing the [VFO/MR] button, use the MAIN DIAL knob
or the microphones [UP]/[DWN] buttons to select the desired memory channel
for storage. Look for a channel where no data is currently stored, so as not to
over- write channel data you may wish to use.
4. Press the [VFO/MR] button again, this time momentarily, to store the displayed
data into the selected memory channel slot. The memory label will stop blink-
ing for a second, then will disappear (since you are still operating in the VFO
mode).
Recalling Memories
From the VFO mode, momentarily press the [ VFO/MR] button on the micro-
phone to activate the Memory mode.
When more than one memory has been stored, use the MAIN DIAL knob to select a
memory for operation. Alternatively, microphones [UP] or [DWN] button may be
used to stop or scan through the available memories. When using the microphones
buttons, press and release the button to move one step up or down; press and hold
the [UP] or [DWN] button for one second to begin memory scanning.

DIRECT KEYPAD MEMORY R ECALL (requires MH-36A6J)
Which begins with The desired memory channel may be recalled directly from
the microphones keypad.
To recall a memory channel from the keypad, just press the digits on the keypad in
the proper sequence, followed by the key..
Examples:
To recall memory channel #5, press .
To recall memory channel #100, press .
HOME Channel Memories

Convenient one-touch HOME channel memories (one per band) are available to
simplify return to your most-often-used frequency. These memories do not ap-
pear in the regular memory banks, to simplify operation.
The use of the HOME channel requires that one of the Programmable keys must
be changed, via the MENU system, for a different function than that assigned at the
factory. See page 47 for details. The discussion below will assume that this func-
tion has been assigned to the [P2 ] key on the microphone.
To recall the HOME channel on the current band, momentarily press the [P2] key (or
whichever Programming key you may have assigned to the HOME channel).
The H icon will appear at the bottom left corner of the display (while in the
CONTROL MODE of the display). Another press of the [P2 ] key will recall the
HOME channel of the other band. Press [VFO/MR] to revert to VFO or Memory
operation.
Programming the HOME Channel(s)

The factory default frequencies for the HOME channels are 146.520 MHz (Europe
Version: 145.000 MHz) for VHF and 446.000 MHz (Europe Version: d 433.000
MHz) for UHF. You can re-program the HOME channels in a manner identical to
that used for the regular memories.
1. From the VFO mode, tune in the frequency you wish to store, and set all re-
peater shifts and other data just the way you do for normal memory channel
storage.
2. Press and hold in the [VFO/MR] button on the microphone for one second, then
press the [P2] key momentarily.
Note that there is only one HOME channel for each band.

Naming and Displaying Memories
You can append to stored memories an Alpha/Numeric tag (up to seven charac-
ters), to provide an easy reminder as to a particular frequencys function.
To name a memory:
1. Recall the memory to be named.
knob to select 0 2 A L P H c .
3. You will notice the first entry position blinking. While it is blinking, press the
key or key to select the first character of the memorys name,
then press the key to move on to the next character to the right.
4. Press the key or key to select thenext character, then press the
key to move on to the next characters slot.
5. Repeat steps 3 and 4, as necessary, to complete a name tag for your memory,
then press and hold the key for 1.5 second to save the Alpha/Numeric
name and exit to normal operation.
To turn on the memory name display:
knob to select 0 1 A L P H .
3. Press and hold in the key for 1.5 second so that the name just assigned
(not the frequency) appears on the LCD.
To restore the frequency display, and hide the Alpha/Numeric label, select O F F
in step 2 above. Each memory channel may have its Alpha/Numeric On/Off status
set independently.
Loading a Memory into the VFO

You can easily select a memory and use that frequency as a starting point for VFO
operation.
1. Recall the memory channel of the frequency you wish to copy to the VFO.
2. Press and hold in the MAIN DIAL knob for one second. The radio will switch to
the VFO mode, and it will be operating on the frequency of the memory channel
you just left. You may now tune freely without having affected the original
memory contents.
Note that the previous VFO frequency will be overwritten by this action.

Memory-Only Mode
Once memory channel programming has been completed, you may place the radio
in a Memory Only mode, whereby VFO operation is impossible. This may be
particularly useful during public-service events where a number of operators may
be using the radio for first time, and ultimate simplicity of channel selection is
desired.
To place the radio into the Memory Only mode, turn it off. Now press and hold in
the [VFO/MR] button on the microphone (or whichever key you have assigned for
the V F O /M R function) while turning the radio on.
To return to normal operation, repeat the above power-on procedure.
Erasing Memories
With 186 total memories available, there frequently are situations where you may
desire to erase memories which are no longer needed.
To erase a memory:
1. Recall the memory to be erased. Note that Memory Channel 1 may not be
deleted, as it is the Priority Channel.
2. Press and hold the [VFO/MR] button on the microphone for one second.
3. Press the button. This will cause the display to shift to Memory
Channel 1, and the previously-selected memory will now be eliminated from
the memory bank.
Important Note:
Erased memory channels can not be recovered.

Scanning Features
Scanning Operation
The FT-90Rs microprocessor-based scanning feature allows quick scanning of
the memory channels, or sweeping of a band, looking for activity.
Before activating the scanner, make sure that the SQL control is set to silence the
background noise when no signal is present. If the noise is not squelched, the
transceiver will think that it has found a signal, and will not scan.
Scanning may be started or stopped with the microphones [UP] or [DWN] button.
The following techniques are used for scanning:
1. Pressing and holding in either the [UP] or [DWN] button for one second in the
VFO mode will cause upward or downward band scanning, respectively, to
begin.
2. Pressing and holding in either the [UP] or [DWN] button for one second in the
Memory mode will cause memory channel scanning toward a higher- or lower-
numbered memory channel, respectively.
3. Scanning pauses when a signal opens the squelch, and the decimal point on the
display will blink. You can choose one of two scan-resume modes (described
below).
4. To halt the scan manually, the easiest way is to push the PTT switch on the
microphone momentarily (no transmission will occur while you are scanning).
The scan may also be halted manually by pressing the microphones [UP ] or
[DWN] button, or the microphones [VFO/MR] button.
Scan-Resume Options
Two scan-resume modes are available on the radio:
In the B U S Y mode, the scanner will remain stopped for as long as there is
carrier present on the channel; after the carrier drops at the end of the other
stations transmission, the scanner will resume.
In the T I M E mode, the scanner will halt for five seconds only, after which
scanning will resume (whether or not the other station is still transmission).
To change the scan-resume mode, use the following procedure:
1. Press and hold in the key for one second, then rotate the MAIN DIAL
knob to select 2 9 S C A N .
2. Press the key to select the desired scan-resume mode (B U S Y or T I M E ).

Scanning Features
Memory Skip Scanning
When you have some continuously-active channels in memories, you may wish to
skip them for scanning, but still have them available for manual selection.
To mark a memory to be skipped during scanning, use the following procedure:
1. Recall the memory channel to be skipped. Note that Memory Channel 1 may
not be skipped.
knob to select 3 1 S K I P .
3. Press the key to select S K I P .
To re-enable a skipped memory channel, select S T O P in step 3 above.
Temporary Memory Skip

If the scanner repeatedly stops on a channel due to temporary noise or interfer-
ence, you can temporarily mark it to be skipped (except the Memory Channel 1).
The channel will be skipped until you manually stop the scan (by pressing the
PTT switch, for example).
To skip a channel temporarily, press the key momentarily while the scan-
ner has stopped on the channel to be skipped. The scanner will instantaneously
resume, and that channel will not be scanned during this scanning session.
Programmable Band-Scan Limits

Besides band and memory scanning, this transceiver can be set to tune or scan
only the frequencies between user-defined lower and upper limits. For example,
during 2-meter band scanning you may wish to limit tuning/scanning to 144.5 ~
148 MHz, to avoid encroachment on the SSB/CW sub-band between 144.0 and
144.5 MHz.
These limits are stored in special Sub-Band Limit Memories labeled P M S - 1 L ,
P M S - 1 U , P M S - 2 L , and P M S - 2 U , with L and U designations representing the
Lower and Upper limits, respectively.
To utilize this feature, use the following steps:
1. Store the lower edge of the desired scanning/tuning range in memory P M S -
1 L , and the upper edge in memory P M S - 1 U (or, alternatively, in memories
P M S - 2 LandP M S - 2 U ).
2. With any of these memories recalled, press the MAIN DIAL knob momentarily to

Scanning Features
activate the Programmable Band-Scan Limits. The frequencies stored in
memories L and U will now serve as tuning and scanning limits, thus
creating a tuning sub-band. The p icon will appear in the bottom left corner
of the display in the CONTROL MODE of the display.
To cancel the sub-band limits and return to normal memory operation, press the
[VFO/MR] button on the microphone momentarily. If you are scanning, or if you
want to switch to VFO operation, press the [VFO/MR ] button twice from the
limited sub-band mode of operation.
Once you have stored the L and U memories, you can re-activate the sub-band
limits by simply recalling either memory and pressing the MAIN DIAL knob. How-
ever, you cannot activate the sub-band limits when either of these memories is
marked to be skipped during scanning.
If you have stored sub-band limits in both the P M S - 1 L /1 U and P M S - 2 L /2 U
memory registers, the scanning behaves somewhat differently: the transceiver will
scan from the P M S - 1 L frequency to the P M S - 1 U frequency, then jump to
the P M S - 2 L frequency and scan to the P M S - 2 U frequency, after which it
will return to the P M S - 1 L frequency and repeat the process. If you want to
have something stored in the P M S - 2 L and P M S - 2 U registers, but do not
wish to include them in the scanning process, just mark them to be Skipped as
described previously.
Smart Search Operation

The Smart Search feature may be used to load automatically with no operator
intervention a special bank of up to 50 memory channels (per band) based on
activity. Smart Search will sweep either the entire band or the portion of the band
within the Programmable Band-Scan Limits and will load the Smart Search memory
bank with the frequency data pertaining to those channels on which activity is
found. The channels are loaded in the order in which they are encountered, not
according to signal strength or by ascending frequency.
The Smart Search feature is especially useful when visiting a city for the first time,
where you may be unfamiliar with the repeater frequencies; Smart Search discov-
ers where the local activity is to be found, and automatically loads those frequen-
cies for you.
Smart Search operation is simple to activate:
1. Press and hold in the key for one second.
2. The Smart Search process will now cause the radio to scan upward on current
band, loading channels on which it encounters a signal strong enough to open
the squelch.
Scanning Features
3. When 50 channels are loaded or the scanner reaches the band edge, the scanner
will stop and the transceiver will revert to the starting frequency.
4. To recall the Smart Search Memories just stored, rotate the MAIN DIAL knob.
5. Press the microphones [VFO/MR] button momentarily to exit the Smart Search
mode.
Note that these memories are so-called soft memories; they will be lost if you
exit Smart Search to a VFO/Memory, or if you initiate a new Smart Search. Smart
Search also does not store CTCSS or DCS information; if you cannot access a
repeater found during Smart Search, you may need to investigate possible access
tones.
Priority Channel Monitoring

In the U.S.A. version, the Priority function allows automatic checking for activity
on Memory Channel 1 every five seconds while operating on the VFO or a differ-
ent memory. When the receiver detects a signal on the designated Priority memory
(Channel 1), operation automatically shifts to that memory while the signal is
present (plus a few seconds). If you transmit while paused on the Priority chan-
nel, priority monitoring will cease, and the transceiver will hold indefinitely on
the Priority channel.
The transceiver will only check Memory Channel 1 as the Priority channel if you
are operating in the memory mode. No other memory may be designated as the
Priority channel.
To set up for Priority monitoring:
1. Preset the SQL control to silence the background noise on a clear channel, then
store the frequency to be the Priority channel into Memory Channel 1.
2. Press the [VFO/MR] button on the microphone to operate in the VFO mode. If
you are in the memory mode, select the memory on which you wish to operate
(other than the Priority channel).
3. Press the microphones [ACC] button momentarily to start Priority monitoring
(a P icon will appear at the bottom left-hand corner on the LCD in the CON-
TROL MODE of the display).
During Priority monitoring, the displayed frequency will shift to the Priority memory
briefly about every five seconds, while the receiver checks for the presence of a
signal.
When no signal appears on the Priority memory (causing the squelch to open),
you can tune, transmit and receive on the VFO, or select and operate on other
memories; however, you cannot scan (except manually, using the microphones
Scanning Features
[UP] and [DWN] buttons), as the scanning logic circuits are already dedicated to
the priority scanning activities.
If a station you wish to talk with appears on the Priority memory, press the PTT
switch momentarily while receiving their signal (no transmission will occur) to
halt Priority scanning. Otherwise, when a signal appears on the Priority channel,
Priority monitoring will just pause on that channel, and the decimal on the display
will blink. Priority monitoring will resume based on the setting of the regular
scanning-resume mode - either after a 5-second pause, or after the carrier drops out.
To cancel Priority monitoring, press the microphones [ACC] or [VFO/MR] but-
ton momentarily.
A few other rules govern priority operation:
m You can not scan operation during priority operation.
m The priority function is not disabled by switching the transceiver off. If you
were engaged in priority monitoring at the moment you turned the radio off,
it will assume that you will want to continue priority monitoring during your
next operating session, and will come up still in the priority mode when the
transceiver is switched back on.
Priority monitoring is also available in the European version, although none of the
Programmable keys is set up for Priority monitoring as a default setting. The
function of one of these keys may easily be set up for Priority monitoring; see the
Programming the Front Panel/Microphone Key Functions section on page 47
for details.

ARTS: Auto Range Transpond System
This system uses DCS signaling to inform you when you and another ARTS-
equipped station are within communications range. Both stations must first select
DCS operation using the same DCS code.
Whenever you press the PTT, or every 30 seconds after ARTS is activated, your
radio will transmit a (subaudible) DCS signal. If the other radio is in range, the
beeper (if enabled) will sound and A R T S I N will appear on the display. Whether
you talk or not, the radios will continue to poll each other every 30 seconds while
ARTS is activated.
You can also have your radio transmit your callsign via CW every nine minutes, to
comply with identification requirements.
If you move out range for more than one minute (two polls), your radio will sense
that no signal has been received. A beep will sound, and the display will change to
A R T S O U T (out of range). If you move back into range, your radio will again
beep, and the display will change back to A R T S I N .
During ARTS operation, the microprocessor makes it impossible to change the
operating frequency or other settings; you must first terminate ARTS to resume
normal operation. This is a safety feature to prevent accidental loss of contact due
to channel change, etc.
Here is how to activate ARTS:
knob to select 0 5 A R T S .
2. Press the key to select the ARTS operating mode: R X (receive-only),
T X (transmit-only), T R X (transceive), or O F F The operating descriptions
assume that both radios are set to T R X .
3. Press and hold in the key for 1.5 second to save the entry and exit. The
display will now show A R T S O U T . After two pollings (one minute), if a re-
sponse is not detected, A R T S O U T will appear continuously; otherwise A R T S
I N will be displayed as long as both stations remain in range.
4. To cancel ARTS operation, select O F F in step 2 above.

ARTS: Auto Range Transpond System
ARTS Modes
In the previous ARTS description, both transceivers were set to the T R X
(transceive) mode. There are two other ARTS modes available via the MENU sys-
tem, as outlined below:
R X Use this mode if you only want your radio to listen, and not poll the other
station (in which case their radio should be set to the TX mode). Here, your
radio will beep and display A R T S I N or A R T S O U T to indicate the state
of connection.
T X Likewise, this puts your radio into a transmit-only beacon mode where you
wont hear the polling beeps (but you can still hear when the other station
talks). When activated, you have no display of whether or not the other sta-
tion is in range (A R T S I N and A R T S O U T do not appear). You should
have your CW IDer enabled when this mode is activated.
CW ID (Morse Identifier) Set up

The ARTS feature includes a CW identifier, as mentioned previously. The radio
can be instructed to send DE (your callsign) K in Morse code every nine min-
utes during ARTS operation. The callsign may contain up to 7 characters.
Heres how to program the CW Ider:
knob to select 0 8 C W I D # .
2. You will notice the first characters entry slot blinking. While it is blinking,
press the or key to select the desired character, then press the
key to move on to the next character to the right.
3. Press the or key to select the next number or letter, then press
the key to move on the next character..
4. When the callsign is complete, press and hold in the key for 1.5 second
to save the CW ID entry and exit to normal operation.
To activate the CW Ider for use during ARTS operation:
knob to select 0 7 C W I D .
To disable the CW IDer, select O F F in step 2 above.

Packet Operation
Packet operation generally requires only that you connect your TNC per the illus-
tration on page 16, then configure the channel for 1200 bps or 9600 bps using the
MENU.
To select the Packet baud rate, use the following procedure:
knob to select 2 1 P C K T .
2. Press the key to select the desired baud rate (1 2 0 0 b p s or 9 6 0 0 b p s ).
The packet baud rate selection can be set independently for each band (VHF and
UHF) during VFO operation. Note also that the packet baud rate may be stored
into memory channels, so you wont need to enter the MENU each time you wish to
operate in the Packet mode.

Miscellaneous Settings
Time-Out Timer
The Time-Out Timer (TOT) feature is designed to force the transceiver into the
receive mode after a pre-set time period of continuous transmission (the default
is 6 minutes). This feature prevents your transceiver from transmitting a dead
carrier for a long period of time in the event that the microphone PTT switch is
accidentally locked in the TX condition.
The Time-Out Timers switch-to-receive time may be adjusted, in one minute
increments, for any period between 1 and 60 minutes.
To change the default (6 minute) time setting:
knob to select 3 5 T O T .
2. Press either the or key to select the desired time interval (be-
tween 1 and 6 0 minutes, or O F F ).
Automatic Power-Off
The Automatic Power-Off (APO) feature will turn the radio completely off after
a user-defined period of PTT or key/button inactivity. If you do not press any
front panel keys or buttons, do not rotate the MAIN D IAL knob, do not use the
microphones keys and buttons, do not transmit, and so long as the transceiver is
not scanning or engaged in priority monitoring, the radio will shut itself off after
the specified time period. This feature is useful in minimizing battery drain in a
mobile installation if you forget to turn the transceiver off when you leave your
vehicle.
To activate the APO feature:
knob to select 0 3 A P O .
2. Press either the or key to select the desired switch-off time
(between 1 and 1 2 hours, or O F F ).

Cooling Fan Control
The FT-90Rs microprocessor will automatically activate the cooling fan during
transmitting and for thirty seconds thereafter, or when the chassis temperature
rises.
You can change the operating mode of the cooling system, should the ambi-
ent temperature in your station require it, using the following procedure:
knob to select 1 8 F A N .
2. Press the key to change the desired operating mode.
AUTO: The cooling fan rotates at high speed when the chassis tempera-
ture rises; the fan rotates at low speed otherwise.
TX: The cooling fan rotates high speed when transmitting, and for 30
seconds thereafter; the fan rotates at low speed otherwise.
A U T O /TX : The cooling fan rotates at high speed when both of the above con-
ditions exist; the fan rotates at low speed otherwise.
OFF: The cooling fan rotates continuously at low speed.
Programming the Front Panel/Microphone Key Functions

Default FT-90R key functions have been assigned (at the factory) to the front
panels and keys, as well as the microphoness [P1 ], [P2] , and
[ACC] buttons. These may be changed by the user, if you wish to define another
function for a particular key or keys.
To change the assignment of a keys function:
knob to the Menu Item # corresponding to the key to be assigned a function
(2 2 P g : , 2 3 P g : , 2 4 P g : P 1 , 2 5 P g : P 2 , or 2 6 P g : A C ).
2. Press the key to select the function you wish to assign to the key or
button you selected in the previous step. The available choices are:
H O M E C H Switches frequency to the HOME channel.
VFO /M R Switches frequency control between VFO and Memory.
TONE Selects CTCSS or DCS mode and tone/code.
PRI Activates Priority Channel monitoring.

S C A N U P Activates Scanning toward higher frequency/memory channel.
S C A N D N Activates Scanning toward lower frequency/memory channel.
RPTR Selects Repeater Shift direction.
R E V E R S E Reverses Repeater Uplink/Downlink frequencies.
T . B U R S T Activates 1750 Hz Tone Burst.
T X P W R Allows setting of the transmitter power level.
3. Rotate the MAIN DIAL knob to select another programmable key or button to
modify, if desired, and make your selection from the above list.
Note:
The function of the [VFO/MR] key is fixed on the [VFO/MR] selection.
DCS Code Inversion

The DCS system was first introduced in the commercial LMR (Land Mobile Ra-
dio) service, where it is now in widespread use.
DCS uses a codeword consisting of a 23-bit frame, transmitted (subaudible) at a
data rate of 134.4 bps (bit/sec). Occasionally, signal inversion can result in the
complement of a code being sent or received. This prevents the receiver squelch
from opening with DCS enabled, as the decoded bit sequence would not match
that selected for operation.
Typical situations that might cause inversion to occur are:
m Connection of an external receiver preamplifier.
m Operating through a repeater.
m Connection of an external linear amplifier.
Note that code inversion does not mean that any of the above listed equipment is
defective! In certain amplifier configurations, the output signal (phase) is inverted
from the input. Small signal or power amplifiers having an odd number (1, 3, 5,
etc.) of amplification stages may result in inversion of a transmitted or received
DCS code.

While under most circumstances this should not occur (amplifier designs and
industry standards take this into account), if you find that your receiver squelch
does not open when both you and the other station are using a common DCS code,
you or the other station (but not both) can try the following:
knob to select 1 4 D C S n r .
2. Press the key to select one of the following modes:
T R X N O R : Encoder : Normal Decoder ; Normal
RX REV : Encoder : Normal Decoder ; Reverse (Inverted)
TX REV : Encoder : Reverse (Inverted) Decoder ; Normal
T R X R E V : Encoder : Reverse (Inverted) Decoder ; Reverse (Inverted)
Remember to restore the default setting to T R X N O R (Encoder Normal; De-
coder Normal) when done.
Demonstration Mode
When the FT-90R is first turned on, the supplied DC voltage is displayed below
the field which shows the operating frequency. The FT-90R also provides an
alternative opening display option, called the Demonstration mode. This is a
two-line scrolling message which might, for example feature your callsign on the
top line and your name on the next line.
If your transceiver currently displays the DC voltage below the frequency, you can
activate the Demonstration mode by pressing and holding in the button
while turning the transceiver on. The display will then indicate the demonstration
comments until you activate some function on the radio (rotate the MAIN D IAL
knob, etc.)
Press and hold in the button return, while turning the FT-90R on, to
return to the normal opening display.

Programming the Demo Message
You also can change the Demonstration mode message, if desired, using the
following procedure:
1. Press and hold in the key while turning the transceiver on; you will
notice the first character of the upper message area blinking.
2. While this character is blinking, rotate the MAIN D IAL knob to select the first
character of the top message, then press the key to move on to the next
character to the right.
3. Rotate the MAIN DIAL knob to select the next character, then press the
key to move on to the next characters entry location.
4. Repeat steps 2 and 3, as necessary, to complete the upper message (up to 50
characters).
5. Now press the key momentarily; you will now observe the first charac-
ter of the lower message area blinking.
6. Repeat steps 2 and 3 again to set the lower message (up to 50 characters).
7. Press the key to save the new messages and exit.
Resetting the CPU

If you encounter erratic operating results, or wish to clear all transceiver settings
so as to start with the factory defaults, resetting the microprocessor provides a
quick method of starting over with original factory settings.
m To reset all MENU settings to their factory defaults, press and hold in the
key and the button while turning the transceiver on. This
procedure does not alter or erase any channel memories you may have stored.
m To perform a CPU master reset for all memories and MENU settings, press
and hold in the key, the key, and the button while
turning the transceiver on.

Transceiver Cloning
You can transfer all data stored in one FT-90R to another FT-90R by utilizing the
handy Cloning feature. This requires a user-constructed Cloning cable which
connects the MIC jacks on the two transceivers, as shown below.
To clone from one transceiver to another, use the following procedure:
1. Insert the Clone Cable into the MIC jack of each transceiver.
2. Turn both transceivers off, then press and hold in the microphones [ACC ]
button (on each radio) while turning the power on again. The C L O N E indica-
tion will appear on the display.
3. On the destination radio, press the button. The R indicator will ap-
pear at the bottom left corner on the display (in the Frequency Control display
mode).
4. Now, on the source radio, press the key. The T indicator will ap-
pear in the bottom left corner on the display, and the cloning data transfer will
immediately begin.
5. If there is a problem during the cloning process, E r r o r will be displayed.
Check your cable connections, and try again.
6. If cloning was successful, turn the destination radio off. Now turn the source
radio off.
7. Remove the Clone Cable. Channel and operating data for both radios are now
identical. They both may be turned on now for normal operation.

Menu System
The FT-90Rs MENU system allows a number of transceiver operating parameters
to be custom-configured for your operating requirements.
The MENU is easy to activate and set, using the following procedure:
1. Press and hold in the key for one second.
2. Rotate the MAIN DIAL knob to select the MENU item to be adjusted.
3. Press the or key, as instructed in the sections to follow, to
adjust the status or value of the MENU item. In many cases, the LCD field just
above the key will show a q icon, indicating that the key below it is
the one which should be pressed to toggle the available selections.
4. After completing your adjustment, press and hold in the key for 1.5
second to save the new setting and exit to normal operation.
MENU items are conveniently arranged in alphabetical order.
Menu Item Function Available Values Default
01ALPH Enable/disable the Alpha-Numeric display ON/OFF OFF

02ALPHc Store Alpha-Numeric "Tags" ----- -----
03APO Set the Automatic Power-Off time OFF/1~12 OFF
04 Not Used ----- -----
05ARTS Select the ARTS mode OFF/RX/TX/TRX OFF
06BEEP Enable/disable the key-button beeper ON/OFF ON
07CWID Enable/disable the CW IDer during ARTS operation ON/OFF ON
08CWID# Programming the CW IDer ----- -----
09D Con Setting the front panel display's contrast level 0~12 6
10D Dim Setting the front panel display's illumination level OFF/d1/d2/d3/d4 d1
11DC IN Indication of the Supply Voltage ----- -----
104 standard
12DCS# Setting the DCS code 023
DCS codes
13DCS Activate the DCS Code Search Scanner ----- -----
TRX NOR/RX REV
14DCSnr Select "Normal" or "Inverted" DCS code TRX NOR
TX REV/TRX REV
50/250/450/
15DTMFd Setting the DTMF Autodialer delay time 450
750/1000
16DTMFs Setting the DTMF Autodialer sending speed 50/100 50
17DTMFw Programming the DTMF Autodialer ----- -----
OFF, AUTO, TX
18FAN Set the cooling fan function AUTO/TX
AUTO/TX
OFF/
19LckTX Enable/disable the PTT lock OFF
BAND A/BAND B

Menu System
Menu Item Function Available Values Default
20LOCK Enable/disable the key-button lock ON/OFF OFF

Set the transceiver's circuitry for the
21PCKT 1200/9600 1200
Packet baud rate to be used
22Pg: Programming the key assignment TONE REVERSE
PRI
23Pg: Programming the key assignment SCAN UP RPTR
SCAN DN
RPTR
24Pg:P1 Programming the [P1] key assignment TONE
REVERSE
T.BURST
25Pg:P2 Programming the [P2] key assignment TX PWR
TX PWR
HOME CH
26Pg:AC Programming the [ACC] key assignment VFO/MR PRI
S-3/S-5/S-FULL/
27RfSql Adjust the RF SQL threshold level OFF
OFF
ARS/Shift -/
28RPTR Setting the Repeater Shift Direction ARS
Shift +/OFF
29SCAN Select the Scan-Resume mode BUSY/TIME BUSY
30Shift Set the magnitude of the Repeater Shift 0.00~99.95
Enable/disable skipping of a
31SKIP SKIP/STOP STOP
memory during scanning
5.0/10.0/12.5/15.0/
32STEP Setting the synthesizer steps
20.0/25.0/50.0

ENC, ENC/DEC
33TONE Select the CTCSS/DCS Operation Mode OFF
BELL, DCS, OFF
39 standard
34TONEf Setting the CTCSS Tone Frequency 100.0
CTCSS Tones
35TOT Set the Time-Out Timer OFF/1~60 6
36TxNar Reducing the MIC Gain ON/OFF OFF
HIGH/MID1/
37TxPwr Set the Tx Output Power HIGH
MID2/LOW
38AM Select the Receiving mode AUTO/AM/INHIBIT AUTO
Depends on transceiver version.
Menu Selection Details

01ALPH
Function: Enable/disable the Alpha Numeric display.
Available Values: ON/OFF
Default Setting: OFF
Note:
Setting can be set independently on each Memory channel.
02ALPHc
Function: Programming an Alpha/Numeric memory.
See page 36 for details.

Menu System
03APO
Function: Enable/disable the Automatic Power Off feature.
Available Values: 1 ~ 12 hours, or OFF
04 (Not Used)
05ARTS
Function: Select the ARTS mode.
Available Values: OFF/RX/TX/TRX
06BEEP
Function: Enable/disable the key/button beeper.
Default Setting: ON
07CWID
Function: Enable/disable the CW IDer during ARTS operation.
08CWID#
Function: Programming a callsign into the CW IDer. See page 44.
09D Con
Function: Setting the front panel displays contrast level.
Available Values: 0~12
Default Setting: 6
10D Dim
Function: Setting the front panel displays illumination level.
Available Values: d1/d2/d3/d4/OFF
Default Setting: d1
11DC IN
Function: Indication of the Supply Voltage.
12DCS#
Function: Setting the DCS code #.
Available Values: 104 standard DCS codes
Default Setting: 023

Menu System
13DCS
Function: Activate the DCS Code Search Scanner.
14DCSnr
Function:Select Normal or Inverted DCS code.
Available Values:
TRX NOR (Encoder: Normal / Decoder: Normal)
RX REV (Encoder: Normal / Decoder: Reverse (Inverted))
TX REV (Encoder: Reverse (Inverted) / Decoder: Normal)
TRX REV (Encoder: Reverse (Inverted) / Decoder: Reverse (Inverted))
Default Setting: TRX NOR: (Encoder: Normal / Decoder: Normal)
15DTMFd
Function: Setting the DTMF Autodialer delay time.
Available Values: 50/250/450/750/1000 ms
Default Setting: 450 ms
16DTMFs
Function: Setting the DTMF Autodialer sending speed.
Available Values: 50/100 ms
Default Setting: 50 ms (High speed)
17DTMFw
Function: Loading the DTMF Autodialer memory. See page 31.
18FAN
Function: Set the cooling fan function.
Available Values: AUTO/TX, AUTO, TX, OFF
AUTO : The cooling fan rotates at high speed when the chassis tempera-
ture rises; the fan rotates at low speed otherwise.
TX : The cooling fan rotates high speed when transmitting, and for 30
seconds thereafter; the fan rotates at low speed otherwise.
AUTO/TX : The cooling fan rotates at high speed when both of the above
conditions exist; the fan rotates at low speed otherwise.
OFF : The cooling fan rotates continuously at low speed.
Default Setting: AUTO/TX

Menu System
19LckTX
Function: Enable/disable the PTT lock.
Available Values: BAND A/BAND B/BOTH/OFF
Note:
BAND A is VHF, BAND B is UHF.
20LOCK
Function: Enable/disable the key/button lock.
21PCKT
Function: Set the transceivers circuitry for the Packet baud rate to be used.
Available Values: 1200/9600 bps
Default Setting: 1200 bps
22Pg:
Function: Programming the key assignment.
Available Values: TONE, PRI, SCAN UP, SCAN DWN, RPTR, REVERSE,
TX PWR, HOME CH, VFO/MR, T.BURST
Default Setting: REVERSE
23Pg:
Function: Programming the key assignment.
Default Setting: RPTR
24Pg:P1
Function: Programming the [P1] button assignment.
Default Setting: TONE
25Pg:P2
Function: Programming the [P2] button assignment.
Default Setting: TX PWR

Menu System
26Pg:AC
Function: Programming the [ACC] button assignment.
Default Setting: PRI
27RfSql
Function: Adjust the RF SQL threshold level.
Available Values: S-3/S-5/S-FULL/OFF
28RPTR
Function: Setting the Repeater Shift Direction.
Available Values: ARS/Shift -/Shift +/OFF (Simplex)
Default Setting: ARS (Automatic Repeater Shift)
29SCAN
Function: Select the Scan-Resume mode.
Available Values: BUSY/TIME
Default Setting: BUSY
Note:
TIME is a five-second delay, after which scanning will resume.
30Shift
Function: Set the magnitude of the Repeater Shift.
Available Values: 0.00MHz ~ 99.95 MHz (50 kHz steps)
Default Setting: Depends on transceiver version (U.S.A., European, etc.).
Note:
Different shifts will appear, depending on the band you currently are on.
31SKIP
Function: Enable/disable skipping of a memory during scanning.
Available Values: SKIP/STOP
Default Setting: STOP (Scanner stops when the channel is busy)
32STEP
Function: Setting the synthesizer steps.
Available Values: 5.0/10.0/12.5/15.0/20.0/25.0/50.0 kHz
Default Setting: Depends on the transceiver version (U.S.A., European, etc.).

Menu System
33TONE
Function: Select the CTCSS/DCS Operation Mode.
Available Values: ENC, ENC/DEC, BELL, DCS, OFF
34TONEf
Function: Setting the CTCSS Tone Frequency.
Available Values: 39 standard CTCSS Tones
Default Setting: 100.0 Hz
35TOT
Function: Set the Time-Out Timer.
Available Values: 1 ~ 60 minutes or OFF
Default Setting: 6 minutes
36TxNar
Function: Reducing the MIC Gain.
Default Setting: OFF (Normal Deviation)
37TxPwr
Function: Set the Tx Output Power
Available Values: HIGH/MID1/MID2/LOW
Default Setting: HIGH
38AM
Function: Select the receiving mode.
Available Values: AUTO/ AM/INHIBIT
Default Setting: AUTO (AM in Aeronautical Bands, FM elsewhere)
Note:
The Inhibit option locks reception in the FM mode

Notes

Notes

This device complies with Part 15 of the FCC rules.
Operation is subject to the condition that this device
does not cause harmful interference.
Copyright 1999 No portion of this manual
Yaesu Musen Co., Ltd. may be reproduced
All rights reserved. without the permission of
Yaesu Musen Co., Ltd.
Printed in Japan

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Operating Manual

YAESU MUSEN CO., LTD.

The FT-90R is an ultra-compact, high-power dual-band FM mobile transceiver

FT-90R O PERATING MANUAL 1

Specifications are subject to change without notice or obligation.

2 FT-90R O PERATING MANUAL

FT-90R O PERATING MANUAL 3

4 FT-90R O PERATING MANUAL

MAIN DIAL Knob

FT-90R O PERATING MANUAL 5

6 FT-90R O PERATING MANUAL

13.8 VDC Cable Pigtail w/Fuse

FT-90R O PERATING MANUAL 7

MH-36A6J DTMF Microphone

8 FT-90R O PERATING MANUAL

KEYPAD (MH-36 A6J only)

These 16 keys generate DTMF tones during transmission.

MH-42A6J Hand Microphone

FT-90R O PERATING MANUAL 9

10 FT-90R O PERATING MANUAL

ceiver or antenna installation.

Be certain to wrap any wire or cable splices thoroughly with insulating

FT-90R O PERATING MANUAL 11

12 FT-90R O PERATING MANUAL

Loss figures are approximate; consult cable manufacturers

FT-90R O PERATING MANUAL 13

14 FT-90R O PERATING MANUAL

FT-90R O PERATING MANUAL 15

Packet Radio Terminal Node Controller (TNC)

16 FT-90R O PERATING MANUAL

9600 BPS PACKET SETUP

FT-90R O PERATING MANUAL 17

18 FT-90R O PERATING MANUAL

FT-90R O PERATING MANUAL 19

Frequency Navigation [DIAL (VFO) Mode]

20 FT-90R O PERATING MANUAL

Direct Keypad Frequency Entry (requires MH-36A6J)

FT-90R O PERATING MANUAL 21

22 FT-90R O PERATING MANUAL

FT-90R O PERATING MANUAL 23

Power Output Setting

24 FT-90R O PERATING MANUAL

Standard Repeater Shift

FT-90R O PERATING MANUAL 25

26 FT-90R O PERATING MANUAL

FT-90R O PERATING MANUAL 27

CTCSS (Continuous Tone Coded Squelch System)

DCS (Digital Code Squelch)

28 FT-90R O PERATING MANUAL

FT-90R O PERATING MANUAL 29

CTCSS Bell Paging

1750 Hz Tone Calling (European Versions)

30 FT-90R O PERATING MANUAL

DTMF Autodialer Operation

FT-90R O PERATING MANUAL 31

MIC Gain Control

32 FT-90R O PERATING MANUAL

FT-90R O PERATING MANUAL 33

34 FT-90R O PERATING MANUAL