Max 638

Privacy Plus Trunked Mobile Radios MAX638 MAX638 User Manual
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User Manual
MAX638
MAX638
Privacy Plus Trunked

Mobile Radios
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2-YEAR WARRANTY
We thank you for purchasing our Motorola radios. These

radios are manufactured according to the highest quality
standards set and are backed by Motorola’s two (2) year
warranty. The rechargeable Motorola batteries have a one (1)
year warranty. Kindly approach your dealer for more
information.
WARNING
To qualify for warranty, the following applies:
DO NOT attempt to modify or repair your radio.
Use Motorola supplied accessories and batteries in
connection with the radio.
Should you have any queries or need assistance, please
contact:
Singapore -Telephone/Fax: (65)2812053/2874181
Beijing -Telephone/Fax: (86-10)4610273/4610277
Fill in the details of your radio below for your own reference:
Model Name/No.:
Serial Number:
Date of Purchase:
Dealer Name:
Address:
Telephone:
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F
A B D C E
MAX638
A. Radio On/Off and Volume Control
B. Three LED Indictors
C. Display
D. System Selector
E. Talkgroup Selector
F. Transmit Key (PTT)
G. Microphone Connector
NOTE
Keep this page open for easy reference as
you go through the user guide.
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Copyright Information
The Motorola products described in this manual may
include copyrighted Motorola computer programs
stored in semiconductor memories or other mediums.
Laws in the United States and other countries
preserve for Motorola certain exclusive rights for
copyrighted computer programs, including the
exclusive right to copy or reproduce in any form the
copyrighted computer program. Accordingly, any
copyrighted Motorola computer programs contained in
the Motorola products described in this instruction
manual may not be copied or reproduced in any
manner without the express written permission of
Motorola. Furthermore, the purchase of Motorola
products shall not be deemed to grant either directly or
by implication, estoppel, or otherwise, any license
under the copyrights, patents, or patent applications of
Motorola, except for the normal non-exclusive, royalty
fee license to use that arises by operation of law in the
sale of a product.
© 1996 by Motorola, Inc.
All Rights Reserved.

Motorola Malaysia Sdn. Bhd. (Company No. 12631DE),
Bayan Lepas Free Industrial Zone, Phase III,
11900 Penang, Malaysia.
Printed in Malaysia.
Motorola and Channel Scan are trademarks of Motorola,

Inc.
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Contents
Contents
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Functions Of The Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Radio ON/OFF and Volume Control Knob . . . . . . . . . . . . . 5
Features And Advantages Of Trunking . . . . . . . . . . . . . . . . . . 6
Types of Tones. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Display Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Display Character Summary . . . . . . . . . . . . . . . . . . . . . . . . . 10
Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
To Turn the radio On . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
To Receive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
To Transmit On a Trunked System . . . . . . . . . . . . . . . . . 12
To Transmit On a Conventional System. . . . . . . . . . . . . . 12
To Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Multiple System And Talkgroup Selection . . . . . . . . . . . . . . 14
Multiple System Selection . . . . . . . . . . . . . . . . . . . . . . . . 14
TalkGroup Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Announcement Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Call Alert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Call Alert Decode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Call Alert Encode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Private Conversation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Private Conversation Encode . . . . . . . . . . . . . . . . . . . . . . 18
Private Conversation Decode. . . . . . . . . . . . . . . . . . . . . . 18
Telephone Interconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
To place a Call (Full Interconnect Capability). . . . . . . . . . 20
To receive a Call. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
SmartZone/AMSS Roaming Features . . . . . . . . . . . . . . . . . 23
SmartZone Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Site Lock/Unlock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Forced Site Search. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Automatic Multiple Site (AMSS) . . . . . . . . . . . . . . . . . . . . 26
Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Turning Scan On/Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
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Contents
Programming/Viewing a Scan List . . . . . . . . . . . . . . . . . . 27

Nuisance Delete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Talkback Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Off-Hook Suspend Scan. . . . . . . . . . . . . . . . . . . . . . . . . . 29
Horn/Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Important General Safety Information . . . . . . . . . . . . . . . . . . 32
Radio Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
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General Information
General Information
With the MAX638 mobile radio you have made
an excellent choice. Motorola offers high stan-
dard of Motorola products. Your MAX638
mobile radio has left our factory only after
extensive tests.
When installing or removing the
mobile radio from the vehicle, the
! radio must be switched off.
DANGER
NOTE
This user guide describes the way a standard
radio works. Since standard operation may be
changed by programming - both concerning the
Functions which the radio includes and the But-
tons used to activate them - the way your radio
operates may differ from what is described here. If
in doubt, contact the person in charge of your radio
system or your local service representative.
The Ignition Cable Must Be Connected For

Proper Operation. If Radio Ignition Cable Is
Not Connected To The Radio, It Will Not
Power Up.
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Functions Of The Buttons
Functions Of The Buttons

A. Radio On/Off and Volume Control
B. Three LED Indictors
1. Tx: red led lights continuously when the radio trans-
mits.
2. Rx: yellow led lights continuously when the radio
receives.
3. Not used
C. Display with three "seven segments" characters.
D. System Selector enables selection of systems by
pushing the system Sel or the system Hm buttons.
E. Talkgroup Selector enables selection of the talk-
groups by pushing the talkgroup or talkgroup -
buttons.
F. Transmit Key (PTT) Push to talk, release to listen.
G. Microphone Connector
Press this Phone button to answer a phone call

or to make a phone call.
Press this Scan button to turn the scanning On/ Off.
Press this Call button once to make a Private Call,
and twice to make Call Alert.
Press this Menu button to select the list of Menu fea-
tures
Press this Hm
button to exit a feature.
Press this Sel button to select a displayed feature.
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General Operation
General Operation
Radio ON/OFF and Volume Control Knob
Turn the radio on by turning the knob clockwise. The
radio then carries out a self-test. Adjust the volume to
a comfortable listening level by turning the knob (A)
clockwise or counter clockwise as required.
NOTE
Ignition must be connected to the mobile radio. If
not the radio will turn off.
Turn the radio off by turning the knob (A) counter

clockwise.
NOTE
If the radio sounds the error tone and displays an
error message, please contact the person in charge
of your radio system or your local service represen-
tative.
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Features And Advantages Of Trunking

A trunked radio system allows a large number of users
to share a relatively small number of frequencies with-
out interfering with one another. When a mobile opera-
tor keys the microphone to establish communication
with someone else in the system, the system automat-
ically assigns a communication path - a repeater and
its frequency. As soon as the conversation ends, the
repeater becomes free for other users. Motorola
Trunked Radio System has a central controller that
does the automatic frequency assignment.
Some of the key benefits of the overall Motorola
Trunked Smartnet Radio System are:
• No channel monitoring required prior to transmis-
sion.
• Fast channel access.
• Automatic channel selection.
• Privacy among members of the same group.
• Uninterrupted conversations
• Only one attempt is required to access the system.
If all channels are busy, the call request enters a
queue and the central controller automatically
assigns the next available channel.
A high pitched "dih-dih-dit" tone sounds when the call
can be made.
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Types of Tones
Type of Tone Meaning What to Do
FAILSOFT Contin- Operating under “failsoft” condi- You can still transmit and
uous faint “beep” tions. A system failure has receive, but you share a channel
every 10 seconds occurred: the mobile is operat- with other groups until the sys-
ing on one channel in a conven- tem is repaired.
tional mode.
Disconnect Mode Reminder to exit Phone or Call Press the Phone or Call button to
Warning Alert Modes. You may be miss- exit the mode.
Continuous illegal ing other types of calls.
function “baaah”
tone.
Telephone Time- Warning that the call will be ter- Complete call or hang up. It is
Out Warning minated if not completed in 15 to time up to finish your call or
High pitched 15-20 20 seconds. redial.
second tone.
Talk Prohibit Con- All unsuccessful attempts to Try again, when you are in a bet-
stant tone when access the trunked system. ter location.
PTT is pressed.
Busy Continuous All available channels are busy Release the PTT switch. You will
“bah-bah-bah” and the radio is in queue. hear call back tone when it is
when PTT is your turn for a channel.
pressed
TALK PERMIT or Now you have a channel to The radio holds the channel
CALL BACK access. open for about three seconds.
High-pitched “dih- Press the PTT and begin your
dih-dit” tone signi- transmission.
fying channel avail-
able
VALID KEY High Signifies button press was Proceed with desired function.
Pitched Chirp tone accepted.
INVALID KEY Inoperative feature or illegal but- Radio is not programmed for this
“Bonk” tone when ton press in current operating function or exit a current operat-
button press is mode. ing mode and access desired
rejected. function.
TIME-OUT-TIMER Present transmission will end in Finish your transmission before

Low pitched, con- four seconds. your transmitter is disabled.
tinuous “baaah”.
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Modes of Operation
Other Calls which can be

Mode of Operation
Received
TALKGROUP Announcement Calls

Private Conversation Calls
Call Alert Pages
Systemwide Calls
Telephone Calls
ANNOUNCEMENT TALK- All Talkgroup Calls

GROUP Private Conversation Calls
Call Alert Pages
Systemwide Calls
Telephone Calls
PRIVATE Conversation Announcement Calls

Systemwide Calls
Call Alert Encode Announcement Calls

Systemwide Calls
TELEPHONE INTERCONNECT Systemwide Calls
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Display Icons
Display Icons
The display icons which appear on the display are:
External Alarm Selected
Scanning
Not in Use
Programming
Monitor
Direct
Monitor Scan
Not Used Program
External Alarm Direct
PHONE Button pressed SCAN Button pressed CALL Button pressed
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Display Character Summary

The MAX638 radio has a 3-character display. The
character displayed on the left side of the display indi-
cates type of incoming calls, while the other two char-
acters displayed on the right side indicate current
dispatch or conventional mode.
• In trunking dispatch mode, the digit displayed in the
middle indicates the system which can be any digit
between 9 to 0 (0=system 10). The character dis-
played on the right side indicates the talkgroup
which can be any letter between A through P.
• In conventional mode, both digits indicate the cur-
rent conventional channel which can be any num-
ber between 01 through 10.
Self test
When the radio is turned on, this
display appears while the self test is
in process.
External Alarm
This display indicates horn and
lights are and can be activated by
Call Alert or Phone Call.
Telephone Interconnect
This display indicates that you have
received an incoming phone call.

answered the incoming call or you
are making a call.
Monitoring
This display appears after you have
pressed the Monitor button.
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Private Conversation Call

This display indicates you have
received an incoming private con-
versation phone call.
Call Alert
received a Call Alert.

initiated a Call Alert.
Failsoft
This display indicates that the radio
is in failsoft per talk-group mode.
This display indicates that the radio

is in failsoft per system mode.
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Basic Operation
Basic Operation
To Turn the radio On
Turn the radio ON/OFF VOLUME knob clockwise. The
last system that was prior to power-down will be dis-
played.
To Receive
Select the system by pressing the system button Sel
until the proper system is displayed. Select the talk-

group by pressing talkgroup or talkgroup button
until the proper talkgroup is shown. A conventional
system will be indicated by digits only. A trunked sys-
tem will be indicated by a digit and a letter.
To Transmit On a Trunked System

When the transmit Indicator LED lights steady or after
the talk permit tones sound, press the PTT switch and
speak into the microphone in a normal voice. If you
hear tone(s) when you push the PTT switch, the sys-
tem alerts you that certain conditions exist. Refer to
the Alert Tone table for explanations.
To Transmit On a Conventional System

The yellow indicator LED will light if any other unit is
active on the channel. Do not transmit if someone else
is using the channel. When you press the PTT switch
located on your microphone, the Transmit indicator will
light steady to indicate that "you are on the air". It will
remain lit until the PTT switch is released.
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Basic Operation
To Monitor
When the radio is in conventional mode with coded
squelch, the channel may be monitored by taking the
microphone off hook. Another way to activate the mon-
itor, is to press Mon (Monitor) button. The (moni-
tor) icon is displayed.
To deselect monitoring, press Mon (Monitor) button
again or place the microphone on-hook.
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Multiple System And Talkgroup Selection
Multiple System And Talkgroup Selec-

tion
Multiple System Selection
This radio has ten Systems, eight Talkgroups in each
system, and ten Conventional Systems or Channels.
MAX638 mobile radios allow the operator to select up
to ten systems to be programmed into the radio. Each
system may have its own unique set of talkgroups, Call
Alert paging, and Private Conversation calls. After the
system has been selected, there is a delay of about
one second before the radio can receive or transmit
calls.
Trunked Systems are identified as numbers 1 through
0 (10). This trunked system number is always dis-
played on the left of the display.
Conventional Systems or Channels sequentially follow
the last trunked system. However, conventional sys-
tems appear as a number in the two rightmost digits.
The indication that the radio is on a conventional sys-
tem is seen when the display shows no letter or spe-
cial character.
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Multiple System And Talkgroup Selection
TalkGroup Selection
A trunked radio system can divide a system into differ-
ent talkgroups. This enables the system owner to
organize the talkgroups into communication groups
according to function. Members of a specific talkgroup
hear only messages intended for their talkgroup.
Talkgroups are identified as letters in the right most
position on the display. The system is identified in the
middle position. An extended press of the talkgroup
button will scroll up the list. Press the PTT switch to
transmit. The radio receives only those messages
intended for the talkgroup indicated on the display. For
example, if talkgroup B is selected, you will not receive
messages for talkgroup E.
Announcement Call
If the operator has a radio equipped with announce-
ment call, it is possible to call all members in the talk-
groups list (RSS programmable). If the operator is in
announcement call mode and multiple talkgroups are
active, only the first call received will be heard.
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Call Alert
Call Alert
Call Alert Decode
This feature allows an individual mobile unit in a sys-
tem to receive a Call Alert or page from a dispatcher to
leave a page in an unattended mobile unit. When the
mobile unit receives the Call Alert, the display shows:
This continues with beeps every four seconds until any

key/PTT is pressed. Call Alert pages will not be
received when the radio is engaged in voice conversa-
tion, has been turned off, or is out of the system range.
If your unit is equipped with optional horn/lights alert,
see the description of Horn/Lights given on page 30.
Call Alert Encode

The Call Alert Encode Feature allows the dispatcher
or supervisory unit to Call Alert or page up to eight
mobile units.
To send a Call Alert page, press the Call (Call) button
until the display shows:
To select a mobile ID from the ID list, press the talk-

group or talkgroup button. Each mobile ID is
identified as CA1 through CA8. Select the desired ID
and press the PTT switch momentarily to send the
CALL Alert.
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Call Alert
The radio will beep once to indicate that Call Alert has
been sent. When the Call Alert has been acknowl-
edged, the display will show:
Then, the radio will sound four beeps and the display
will automatically return to dispatch mode.
NOTE
If the radio is not in service or out of range, a low
pitch alert tone sounds and the display changes to
show "nos". You may try this sequence again when
in range.
An illegal function tone will sound after six seconds of

inactivity. This is to alert you that important channel
activity may be missed if you remain in this mode. Exit-
ing the mode by pressing Hm
(home) button or
Call (Call) button will stop the tone.
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Private Conversation
Private Conversation Encode
This feature enables a mobile unit to exchange private
calls with another unit, normally a supervisory unit. A
single press of the Call (Call) button activates Private
Conversation. The display will show:
To select a mobile ID fro the ID list, press the talk-

group or talkgroup button. Each mobile ID is
identified as PC1, PC2, and so on till PC8. Select the
desired ID and press the PTT switch to send the call.
To return to the last used talkgroup, press Hm
(home)
button.
Private Conversation Decode

When a Private Conversation call is received, two
beeps are heard and the display shows:
Press the Call (Call) Button. The display will show:
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NOTE
If you press the PTT switch before you press the
Call (Call) button, the response will be transmitted
to everyone in the talkgroup.
To return to the last used talkgroup, press the

Hm
(home) button.
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Your radio is equipped with a telephone interconnect
option that allows you to call land line telephones
through the system. Calls made through the central
controller are half-duplex operation (talk or listen).
To place a Call (Full Interconnect Capability)

If your radio is equipped with a DTMF microphone, you
may place mobile-to-land calls. To initiate calls:
Press Phone
button. Momentarily the display shows:
If a free channel is available, the display will show:
You will hear dial tone. Select a phone number from

the list by using talkgroup or talkgroup button.
After selecting, the desired phone location, press the
PTT switch. You will hear tones as they are being sent
out. When the desired number has been completely
sent out, you will hear either a busy tone or ring tone. If
you get a busy tone, hang-up by pressing the
Phone
(phone) button, and try again.
• If illegal "bonk" tone sounds, when Phone (phone)
button is pressed, it indicates that the telephone
interconnect option has not been enabled and the
telephone call cannot be made.
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• If radio is in queue and suddenly a constant out of

range tone sounds, the system is not allowing any
more interconnect calls.
• After the called party answers, inform him/her that
you are using a radio and that he/she must wait for
the radio to finish transmitting (indicated by a soft
beep) before replying. Proceed in a normal push-
to-talk manner by pushing the PTT switch to talk
and release to listen.
• The maximum time period is determined by the
traffic load of the System Central Controller. If a
high pitch tone sounds, it alerts you that you have
just 15 seconds to complete your conversation
before the call will be disconnected.
• To disconnect the call, press the Phone (phone) but-
ton. If the call is not disconnected, an illegal func-
tion "baaah" tone will sound after a short period.
Other type of calls, except system-wide calls, will
not be allowed while the telephone interconnect is
engaged.
To receive a Call
A standard telephone Interconnect Receive features
are as follows:
• When a landline subscriber wants to call a particu-
lar radio, he/she should dial the interconnect termi-
nal phone number. If a line is free, the landline
subscriber will hear a phone ring tone and the dis-
play will show:
to indicate a received call.
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To answer, take the microphone off the hook and press

the Phone (phone) button. The radio will be removed
from dispatch operation and the display will show:
Press the PTT switch to talk and release to listen.

• To terminate call, press again the Phone
(phone) but-
ton.
• If a mobile unit is equipped with the Horn/Lights
feature, engage it before you leave the vehicle.
When a call is received, the vehicle's horn will
sound or the lights will flash for six seconds.
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SmartZone/AMSS Roaming Features

SmartZone Operation
Radios that operate in a SmartZone system will enjoy
the benefits that SmartZone offers over AMSS opera-
tion. SmartZone is a wide-area coverage system that
will allow up to 50 sites to be operational in the sys-
tem. SmartZone brings several enhancements over
AMSS operation such as:
• Dynamic Site Assignment - Allows the zone con-
troller to dynamically assign channels at sites
where required, as opposed to bringing up chan-
nels at all sites as AMSS systems do.
• Variable Density - Allows sites to have varying num-
bers of channel resources to accommodate low-
density areas as well as high density areas.
• Automatic Site Registration/Deregistration - Smart-
Zone radios automatically send in their unit IDs and
current mode selections upon power up, power
down, site switches, talk group changes and when
they exit emergency operation. This allows the
zone controller to know where the radio is at all
times and also what talkgroup the radio has
selected.
• Enhanced FailSoft Operation - If a site experiences
a complete failure, it will revert to failsoft operation
like today’s SMARTNET system. A SmartZone
radio, however, can be programmed in the list of
control modes. The radio will periodically scan the
control mode to check for the presence of a valid
control mode (in case the radio roamed into a site
which is trunking.)
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• Locking and Unlocking a Site - As in AMSS, you

can force the radio to stay locked onto a site. Yet
you can still force the radio to scan to another site
while the site is locked. The radio will automatically
become site locked to the next site it finds.
• Site Switching in SmartZone - When the radio
(unlocked state) is out of range, it will automatically
scan for a new site from list of 32 channels.
Site Lock/Unlock
• If the radio is programmed to include SmartZone or
AMSS, it requires to designate the site from which it
should start operating on the system. To do so,
choose the proper mode from the mode list.
• In the unlocked mode (automatic roaming), the
radio switches between the repeater sites as one
goes out of range and another comes within range.
In the locked mode, the radio will remain on the cur-
rent site even if you go out of range of that site.
Both Site Lock/Unlock and Forced-Site Search are
available through the Menu (menu) button.
When you are in Site Unlocked Mode and want to
change to Site Locked Mode.
• Press the Menu (Menu) button until the display
shows:
• Press the (Select) button to enable Site Lock.

Sel
The display will change to:
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When in Site Locked Mode and you want to change to

Site Unlocked Mode.
shows:
• Press the (Select) button to enable Site

Sel
Unlocked. The display will change to:
CAUTION
When enabling the Site Lock function, you are dis-
abling the automatic roaming functions of the radio.
If you are unsatisfied with the coverage chosen by
the automatic site selection of the radio, we recom-
mend that you use the Forced Site Search feature
instead of Site Lock to gain improved coverage at a
new site.
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Forced Site Search

When you are in a poor coverage area and are not sat-
isfied with the automatic site selection of the radio, you
can activate the Forced Site Search function to scan
for a new site.
The "Forced Site Search" feature can be activated in
Site Lock or Site Unlock Mode and is enabled as fol-
lows:
shows:
• Press the (Select) button to force a Site Search.

Sel
The radio will start searching for a new site.

A forced search can be activated during normal opera-
tion as well as during Call Alert, Private Conversation,
Phone.
Automatic Multiple Site (AMSS)

Automatic Multiple Site Selection (AMSS) feature is
available either in the automatic (unlocked) or manual
(locked) mode. In the automatic mode, the radio
switches as one goes out of range and the other
comes within range. In the manual mode, the site used
is the site that is selected when you have entered the
manual mode. A forced site search (FSS) can be initi-
ated either in the automatic or manual mode.
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Scan
Scan
Introduction
The scan feature allows you to monitor activity on dif-
ferent conventional and trunked modes by scanning a
"scan list" of members (up to 8 members).
Turning Scan On/Off

Press the Scan (scan) button when in any system/
talkgroup or conventional position. The scanning fea-
ture will be enabled. If you desire to turn off the scan-
ning feature, again press Scan (scan) button.
For as long as "SCAN ON" is selected, the ( ) scan
icon will be displayed and the radio will scan for activity
in the channels/talkgroups that are defined in the scan
lists of the present mode.
NOTE
To initiate a call properly during scan mode, press
the PTT switch for a few seconds.
Programming/Viewing a Scan List

MAX638 allows front panel programming to allow the
operator to edit the scan list.
Press Menu (menu) button until the display shows:
Press the (select) button to select "Scan Program-

Sel
ming/ Viewing mode".
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Scan
The radio will sound four quick beats and the display
will show:
When in scan programming, use the talkgroup but-

ton or talkgroup buttons to scroll through the talk-
groups.
If you desire to include any talkgroup in the scan list,
press (select) button when the desired talk-group is
Sel
shown on the display. The display will show:
To deselect, again press the Sel (select) button, the

display will show:
To exit from the scan programming feature, press the

Hm
(home) button. The display will show the home dis-
play.
A scan list is limited to eight members. A alert tone
sounds if you attempt to add more than eight mem-
bers.
If you select a talkgroup as a priority and there is
already a priority talkgroup in the scan list, then the
new talkgroup will be assigned as the priority talkgroup
and the old talkgroup will become a non-priority talk-
group.
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Scan
Nuisance Delete
If you wish to temporarily delete an annoying scan
mode, press the Menu button and the display shows:
Then, press the (select) button to delete. To

Sel
resume scanning of the deleted mode, you must exit

and reenter scan mode.
Talkback Delay
You may talkback during a detected activity for a pre-
programmed (RSS) time period after the activity ends.
After this time period, the radio will resume scan.
Off-Hook Suspend Scan

If this feature is enabled (RSS programmable), the
radio will stop scanning when the radio is off-hook.
Scan will be resumed when the microphone is
replaced on-hook.
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Horn/Lights
Horn/Lights
When you are outside the vehicle, your horn/lights fea-
ture will activate the vehicle's horn/lights (if enabled)
upon receiving an incoming call alert or land to mobile
phone calls.
To activate "horn and lights" press the Menu (menu)
button until the display shows:
Then, press (select) button. The radio shows the

Sel
home display with the horn/lights (bell) icon:
To disable - press any key.
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Accessories
Accessories
Please contact your local Motorola representative for
further information about the accessories listed below:
Microphone Options:
• Palm Microphones
• Keypad Microphones (DTMF)
Mounting Accessories:
• Key Lock
• Direct Trunnion Mount
External Loudspeaker
A Variety of Cable kits (power, ignition, etc.)
• Power
• Ignition
Antennas
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Important General Safety Information

Read This Information Before Using Your Mobile
Radio
For the safe and efficient operation of your mobile,
observe these guidelines.
Your mobile is a radio transmitter and receiver. When
the mobile is ON, the externally mounted antenna is
the part of the mobile that sends out and receives
radio frequency (RF) energy.
• Exposure to Radio Frequency Energy
In 1991 the Institute of Electrical and Electronics Engi-
neers (IEEE), and in 1992 the American National
Standards Institute (ANSI) updated the 1982 ANSI
Standard for safety levels with respect to human expo-
sure to RF energy. Over 120 scientists, engineers, and
physicians from universities, government health agen-
cies, and industry, after reviewing the available body of
research, developed this updated Standard. In March,
1993, the Federal Communications Commission
(FCC) proposed the adoption of this updated Stan-
dard. To operate within this updated ANSI Standard,
use your mobile as described under "Efficient Mobile
Operation".
Efficient Mobile Operation

• DO NOT operate your mobile when a person is
within two feet (0.6 meters) of the antenna unless
that person is shielded from the antenna by a metal
surface such as the roof of the car. Otherwise you
may impair call quality, may cause your mobile to
operate at a higher power level than is necessary,
and may expose that person to RF energy in
excess of the levels established by the updated
ANSI Standard.
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• DO NOT operate your unit unless all radio fre-

quency (RF) connectors are properly terminated.
• All equipment must be properly grounded accord-
ing to Motorola installation instructions for safe
operation.
• All equipment should be serviced only by an autho-
rized technician.
• Antenna Care and Replacement
Do not use the mobile with a damaged antenna.
Replace a damaged antenna immediately. Use only
the supplied or approved antenna.
Unauthorized antennas, modifications, or attach-
ments could damage the mobile and may violate
FCC regulations.
• Driving
Check the laws and regulations on the use of
mobile radios in the areas where you drive. Always
obey them. Also, when using your mobile while
driving, please:
• give full attention to driving,
• pull off the road and park before making or
answering a call if driving conditions so require.
• Vehicle Electronic Equipment
RF energy may effect some electronic systems in
motor vehicles. Check with your vehicle manufac-
turer's representative to be sure your mobile will not
affect the electronic systems of your vehicle.
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Consult your physician or the manufacturer of any

personal medical devices (such as pace-makers,
hearing aids, etc.) to determine if they are ade-
quately shielded from external RF energy. The
operation of inadequately shielded medical devices
may be adversely affected when a mobile is ON.
• Children
Do not allow children to play with your mobile. It is
not a toy. Children could damage the mobile, or
make calls that increase your service bills.
• Blasting Areas
To avoid interfering with blasting operations, turn
your unit OFF when in a "blasting area" or in areas
posted: "turn off two-way radio." Construction crews
often use remote control RF devices to set off
explosives.
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Radio Care
Radio Care
• Avoid any physical abuse of the radio.
• The radio exterior should be cleaned with a cloth
dampened with clean water, a mild liquid soap solu-
tion or isopropyl alcohol.
CAUTION
The use of chemicals such as detergents, alcohol
(except isopropyl), aerosol sprays, and petroleum
products may be harmful and damage the radio
housing.
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Limited Warranty
LIMITED WARRANTY
MOTOROLA RADIO PRODUCTS
Limited Warranty
This express limited warranty covers the Product manufactured by MOTOROLA
Radio Products Group and applies to any warranty already mentioned. MO-
TOROLA assumes no obligations or liability for additions or modifications to this
warranty unless specifically made in writing and signed by an authorised officer
of MOTOROLA.
MOTOROLA cannot be responsible in any way for any ancillary equipment not
furnished by MOTOROLA which is attached to or used in connection with the
Product, or for operation of the Product with any ancillary equipment, and all
such equipment is expressly excluded from this warranty. Because each system
which may use the Product is unique, MOTOROLA disclaims liability for range,
coverage, or operation of the system as a whole under this warranty.
This warranty sets forth the full extent of MOTOROLA’S responsibilities regard-
ing the Product. Repair, replacement or refund of the purchase price, at MO-
TOROLA’S option, is the sole and exclusive remedy of purchaser/user of the
Product. THIS WARRANTY IS GIVEN IN LIEU OF ALL OTHER EXPRESS
WARRANTIES. IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION,
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PAR-
TICULAR PURPOSE, ARE HEREBY EXCLUDED. IN NO EVENT SHALL MO-
TOROLA BE LIABLE FOR DAMAGES IN EXCESS OF THE PURCHASE
PRICE OF THE PRODUCT, FOR ANY LOSS OF USE, LOSS OF TIME, INCON-
VENIENCE, COMMERCIAL LOSS, LOST PROFITS OR SAVINGS OR OTHER
INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF
THE USE OR INABILITY TO USE SUCH PRODUCT, TO THE FULL EXTENT
SUCH MAY BE DISCLAIMED BY LAW.
Notwithstanding anything contained herein, MOTOROLA shall not be liable for
any of the following situations:
A) Defects or damage resulting from use of the Product in other
than its normal and customary manner.
B) Defects or damage from misuse, accident, water, liquid or neglect.
C) Defects or damage from improper testing, operation,
maintenance, installation, alteration, modification, or adjustment.
D) Product which has had the serial number removed or made illegible.
E) A Product which, due to illegal or unauthorized alteration of the
software/firmware in the Product, does not function in accordance
with Motorola’s published specifications or the FCC type acceptance
labeling in effect for the Product at the time the Product was initially
distributed from Motorola.
F) Scratches or other cosmetic damage to Product surfaces that does
not affect the operation of the Product.
MOTOROLA shall have no liability whatsoever with respect to any claim of pat-
ent infringement which is based upon the combination of the Product or parts fur-
nished hereunder with software, apparatus or devices not furnished by
MOTOROLA, nor will MOTOROLA have any liability whatsoever for the use of
ancillary equipment or software not furnished by MOTOROLA which is attached
to or used in connection with the Product.
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Privacy Plus Trunked Mobile Radios MAX638 MAX638 User Manual

Privacy Plus Trunked

We thank you for purchasing our Motorola radios. These

A. Radio On/Off and Volume Control

B. Three LED Indictors

F. Transmit Key (PTT)

© 1996 by Motorola, Inc.

All Rights Reserved.

Motorola and Channel Scan are trademarks of Motorola,

Programming/Viewing a Scan List . . . . . . . . . . . . . . . . . . 27

The Ignition Cable Must Be Connected For

Functions Of The Buttons

Press this Phone button to answer a phone call

Turn the radio off by turning the knob (A) counter

Features And Advantages Of Trunking

Type of Tone Meaning What to Do

TIME-OUT-TIMER Present transmission will end in Finish your transmission before

Other Calls which can be

TALKGROUP Announcement Calls

ANNOUNCEMENT TALK- All Talkgroup Calls

PRIVATE Conversation Announcement Calls

Call Alert Encode Announcement Calls

TELEPHONE INTERCONNECT Systemwide Calls

Not Used Program

External Alarm Direct

PHONE Button pressed SCAN Button pressed CALL Button pressed

Display Character Summary

This display indicates that you have

Private Conversation Call

This display indicates that you have

This display indicates that the radio

until the proper system is displayed. Select the talk-

To Transmit On a Trunked System

To Transmit On a Conventional System

Multiple System And Talkgroup Selec-

This continues with beeps every four seconds until any

Call Alert Encode

To select a mobile ID from the ID list, press the talk-

An illegal function tone will sound after six seconds of

To select a mobile ID fro the ID list, press the talk-

Private Conversation Decode

Press the Call (Call) Button. The display will show:

To return to the last used talkgroup, press the

To place a Call (Full Interconnect Capability)

If a free channel is available, the display will show:

You will hear dial tone. Select a phone number from

• If radio is in queue and suddenly a constant out of

to indicate a received call.

To answer, take the microphone off the hook and press

Press the PTT switch to talk and release to listen.

SmartZone/AMSS Roaming Features

• Locking and Unlocking a Site - As in AMSS, you

• Press the (Select) button to enable Site Lock.

The display will change to:

When in Site Locked Mode and you want to change to

• Press the (Select) button to enable Site

Unlocked. The display will change to:

Forced Site Search

• Press the (Select) button to force a Site Search.