JPS62104229A - Communication equipment for armature radio - Google Patents

Abstract

PURPOSE:To attain line automatic connection while an idle channel of simplex correspondence is used as a talking channel automatically by sending code information on the way of talking state and idle channel information at non- talking state at a frequency corresponding to the call frequency and sending a tone accessing a repeater station during the talking. CONSTITUTION:When the channel is transited to an idle channel via a repeater station, a timer 32 starts count from the changeover of a switch means 7, a specific data output means 33 is driven for a prescribed period after a set period elapses and a specific data is transferred and stored in a storage means 20. Thus, when a push-to-talk PTT switch 18 is turned on and when a setting time of the timer 32 is over, the specific data stored in the storage means 25 and a code stored in a code storage means 29 are subject to data processing by an output data generating means 11 and generated into an output data and sent for a prescribed period at the reduced transmission frequency. Further, tone oscillation is attained when the switch means 7 is thrown to the position of the offset operating means 6.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an amateur radio communication device that automatically connects a line in response to a call instruction. This invention relates to a communication device for amateur radio that forms a suitable automatic line when switching to an empty channel via a radio channel.

(Prior art) Generally, FM communication in amateur radio communication equipment is
From the calling frequency (channel) to the free frequency (
They find an empty channel and inform the other station, and both parties switch to that frequency and communicate. These operations are performed manually.

In response, it automatically finds an empty channel according to the calling instruction, and transmits a control signal containing empty channel information to move the frequency of the other party's wireless communication device to the found empty channel. The applicant has already proposed an amateur radio communication device in which the radio communication device is immediately moved to the vacant channel found above (Japanese Patent Application No. 59-128451 to No. 1984-128465).
.

That is, when a calling instruction is given and certain conditions are met, a search for an empty channel is started, and a line connection is automatically established with the found empty channel.

(Problem to be Solved by the Invention) However, when using the amateur radio communication device described above, when operating an automatic line connection via a repeater station, special consideration is given to the time required to open the repeater station to connect the line. There was a problem in that processing such as sending out a control signal containing at least empty channel information was not carried out. There is also a problem in that the identification signal sent by the repeater station and the control signal for line connection are superimposed and the control signal is disturbed. Furthermore, there is a possibility that there are repeater stations that cannot be handled by the conventional control signal transmission timing, which has the disadvantage of interfering with automatic line connection.

The present invention solves the problems and drawbacks of the conventional example described above, and provides a communication device for amateur radio that can automatically connect an empty channel of simplex communication as a communication channel in communication via a repeater station. The purpose is to

Note that communication that does not go through a repeater station is referred to here as simplex communication.

(Means for Solving the Problems) The present invention enables communication via a repeater station, searches for an empty channel in response to a calling instruction, and combines at least information on the searched empty channel and a code negotiated with the other station. Communication via a repeater station in an amateur radio communication device that transmits information at a calling frequency and when the code information matches, cancels the squelch of the other station and draws the other station into the empty channel. In this case, transmitting at least the code information at a predetermined time during the call state of the push-to-talk switch, and at least the empty channel information when changing from the call state to the non-call state at a frequency corresponding to the calling frequency; Also, during the talking state, four tones are sent to access the repeater station.

(Operation) In the present invention configured as described above, when communicating via a repeater station, at least the code information is transmitted at the calling frequency during a predetermined period while the push-to-talk switch is in the talking state. Therefore, the code squelch of the other station that is squelched with the same code is canceled. Therefore, you can also make a voice call if necessary.

Further, when the push-to-talk switch is changed from the talking state to the non-talking state, at least empty channel information is transmitted at the paging frequency, so that the other station can be shifted to an empty channel.

Also, since the repeater station is open during the period from when the push-to-talk switch is set to the talking state until the code information is output, and the transmission of the identification signal from the repeater station has ended, the code information , squelch due to empty channel information and line connections to empty channels will no longer be hindered.

(Example of the invention) The present invention will be explained below with reference to Examples.

FIG. 1 is a block diagram showing the configuration of the present invention.

1 is a main body of the communication device, which includes a transmitting section 2, a receiving section 3, an antenna switching section 4, a frequency synthesizer section 5, and an offset calculation means for reducing the frequency division ratio to the frequency synthesizer section 5 and offset the synthesized frequency by a predetermined value. 6. Switching means 7 for selectively bypassing the offset calculation means 6; Transmission/reception A3 switching means 8 for selectively supplying power to the transmitter 2 and the receiver 3 to switch between transmission and reception; output of the microphone 9; an audio signal amplifier 10 for amplifying the sound re-signal amplifier 10, a modulation signal switching means 12 which switches between the output of the sound re-signal amplifier 10 and the output of an output data generation means 11 (to be described later) and supplies it as a modulation signal to the transmitter 2; Tone oscillation instructing means 13 instructs tone oscillation to open the station, tone oscillator 14 oscillating a subtone signal in response to instructions from tone oscillation instructing means 13, and an audio signal receiving and amplifying the audio signal from receiving section 3. The transmitting section 2 uses the output of the modulation signal switching means 12 as a modulating signal to modulate the frequency corresponding to the oscillation output of the frequency synthesizer section 5 and transmits the modulated signal. 5 as a local oscillation output, the received signal frequency is converted to an intermediate frequency and received. Note that 16 represents an antenna, and 17 represents a speaker.

Microphone 9 has push-to-talk.
to talk (abbreviated as PTT) Switch 1
8 is attached, and is configured so that by turning on the PTT switch 18, the transmission/reception switching means 8 is switched from the receiving side to the transmitting side. Further, the antenna switching section 4 is configured to switch in conjunction with the transmission/reception switching means 8. Furthermore, the offset instruction means 19-I includes a PTT.
The output of switch 18 is supplied, and the PTT switch 1
When the output of 8 is on and an offset instruction is given by the offset instruction switch 19-2 which instructs communication via the repeater station, the switching means 7 is switched from the contact position shown in FIG. This is to bypass it.

Furthermore, since the switching means 7 is switched from the contact position shown in FIG. 1 by the offset instruction means 19-1,
A tone oscillation instruction is given to the tone oscillation instruction means 13 during a period until the output data generation means 11 generates an output.

Further, the tone oscillator 14 that has received the tone oscillation instruction supplies its oscillation output to the transmitter 2.

The automatic channel selection device 20 includes a call instruction means 21, an empty channel search means 22 that searches for an empty channel in response to the output of the call instruction means 21, and an empty channel search means 22.
selectively delays the transmission of the frequency data corresponding to the empty channel found by the method, and transfers the selectively delayed and outputted frequency data corresponding to the empty channel to the storage means 25 via the selection means 24. selection delay means 23
When the selection delay means 23 transfers the frequency data of the empty channel, the selection means 24 is placed on the selection side of the empty channel frequency data outputted from the selection delay means 23, and the transmission/reception switching means 8 is placed on the receiving side. The modulated signal switching means 12 is switched from the audio signal amplifier 10 side to the output side of the output data generation means 11 for a predetermined period of time, and when this predetermined period has elapsed, the selection means 26 is used to store the modulated signal switching means 12 in the switching means 7 as described below. The frequency data stored in the storage means 25 is supplied instead of the frequency data stored in the means 27.

Further, the output of the selection means 24 is supplied to the storage means 25.

The selection delay means 23 includes a switching means 23-1 which receives the empty channel frequency data outputted from the empty channel searching means 22, and a switching means 23-1 which receives the empty channel frequency data outputted from the empty channel searching means 22 through one contact point of the switching means 23-1. The selection means 24 and 26 output the frequency data corresponding to the empty channel, and when outputting, switch to the transmission state as described above.
The frequency data corresponding to the empty channel outputted from the empty channel searching means 22 through the other contact of the switching means 23-1 and the output determining means 23-2 which supplies a selection signal to the offset instructing means 19- 1, the delay means 23-3 receives the output of the PTT switch 18, which is outputted through the off-cent. The contact state of the switching means 23-1 is configured to be switched by the switching signal of the switching means 7 outputted from the instruction means 19-1, and furthermore, the offset instruction means 19-I is configured to switch the contact state of the switching means 23-1 by the switching signal of the switching means 7 outputted from the instruction means 19-1. It is configured so that it is reset when the transmission ends.

The automatic channel selection device 20 further includes a code storage means 29 in which a code negotiated with the other party in advance or a code such as a call sign of the other party's station is stored, and frequency data stored in the storage means 25 and stored in the code storage means 29. output data generation means 11 that generates output data corresponding to the code, a storage means 27 that stores frequency data corresponding to the oscillation frequency at the time of calling, and a code in the input data received by the reception section 3. The frequency data in the input data is supplied to the selection means 24. The output from the selection means 26 is supplied to a conversion means 28 which converts the output into a frequency division ratio, which converts the frequency data into a frequency division ratio and supplies it to the switching means 7. Furthermore, the selection means 24 is switched to select frequency data in the input data and supply it to the storage means 25 based on the match detection output of the code comparison means 30. Further, a code squelch means 31 is provided which controls the low frequency circuit to a mute state except when called with the same code as the own station during reception. This is to cancel the mute state. On the other hand, the switching signal of the switching means 7 by the offset instruction means 19-I is supplied to the timer 32, and the timer 32 is driven to switch to a frequency outside the amateur band for a predetermined period after the elapse of the set time of the timer 32. Specific data output means 33 that outputs corresponding frequency data
At the same time, the transmitting/receiving switching means 8 is switched to the transmitting side. Also driven specific data output means 3
3 supplies specific data to the storage means 25 and stores it.

In the amateur radio communication device according to the embodiment of the present invention configured as described above, the storage means 27 stores frequency data corresponding to the transmission frequency at the time of making a call, which has been arranged in advance with the communication partner, and the code storage means 29 A code agreed upon with the communication partner is stored in advance.

Further, the oscillation frequency of the frequency synthesizer 5 when the offset instruction is off is set by the stored frequency data of the storage means 27 or 25 supplied via the selection means 26. That is, the frequency division ratio of the variable frequency divider of the frequency synthesizer 5 is set according to the frequency data stored in the storage means 27 or 25 supplied via the selection means 26. Further, when transmitting and an offset instruction is given, the offset calculation means 6 operates to reduce a predetermined offset, for example, the transmission frequency by 15 MHz.

On the other hand, the transmission/reception switching means 8 is normally switched to the reception side, and receives radio waves at a set reception frequency determined by the oscillation frequency of the frequency synthesizer 5.

Therefore, when there is no communication via the repeater station, no offset instruction is issued by the offset instruction switch 19-2. By turning on the PTT switch 18, the transmission/reception switching means 8 is switched to the transmitting side, the transmitting section 2 and the antenna 16 are connected by the antenna switching section 4, and the modulation signal switching means 12 is switched to the amplifier 10 side. is placed in a switched state. Further, the offset calculation means 6 is in a bypassed state, and a modulated wave obtained by modulating a carrier wave corresponding to the output of the frequency synthesizer 5 with an audio signal is transmitted.

Furthermore, when the PTT switch 18 is turned off, the main body of the communication device is switched to the receiving state, contrary to the above, and stands by at the carrier wave frequency used in the transmission. So-called simplex communication is performed by repeating the above transmission and reception.

On the other hand, when communicating via a repeater station, the transmitting side performs transmission at an oscillation frequency offset from the receiving side frequency by a predetermined frequency, for example, -5M Ilz.

That is, when communicating via a repeater station, an offset instruction switch 19-2 issues an offset instruction. By turning on the PTT switch 18 in this state, the switching means 7 is switched from the state shown in FIG. 1 by the output of the offset instruction means 19-I. Therefore, the frequency division ratio is reduced by the offset calculation means 6.

Additionally, a tone oscillation instruction is given. As a result, the oscillation frequency from the frequency synthesizer 5 decreases, and the tone oscillator I
A modulated wave obtained by modulating a carrier wave having a frequency that is, for example, 15 MIIz lower than the transmission frequency at the time of transmission described above is transmitted by the output of No. 4.

Further, when the PTT switch 18 is turned off, tone oscillation is stopped. Therefore, when a repeater station is used, tone oscillation is performed while the PTT switch 18 is generating an on-output.

In the case of standby and reception, the PTT switch 18 is turned off, and the above-mentioned offset is not added, and the operation is the same as in the case of reception.

When the call instruction means 21 issues a call instruction, the empty channel search means 22 which receives the call instruction signal searches for an empty channel, and the empty channel search means 17 finds the empty channel.

If the offset instructing switch 19-2 is currently in the off state, that is, when the repeater station is not used, the offset instructing means 19-1 causes the switching means 7 and the switching means 23 to
-1 has been switched to the state shown in FIG. As a result,
The offset calculation means 6 is bypassed, and simplex communication becomes possible. However, in this case, the frequency data corresponding to the empty channel searched by the empty channel searching means 22 is directly supplied to the output determining means 23-2 via the switching means 23-1.
3-2 to the selection means 24.

At the same time, frequency data from the empty channel search means 22 supplied via the selection delay means 23 is selected by the selection means 24 and transferred to the storage means 25.
5 is stored.

On the other hand, a code stored in the code storage means 29,
The storage frequency data of the storage means 25 transferred to the storage means 25 as described above is stored in the output data generation means 11, and predetermined data processing is performed to generate output data.

On the other hand, when the selection delay means 23 transmits an empty channel, it generates an output for at least a period until the end of transmitting the output data to the modulation signal switching means 12 and the transmission/reception switching means 8. The modulated signal switching means 12 receiving this output is switched from the output selection side of the audio signal amplifier 10 to the output selection side of the output data generation means 11, and the transmission/reception switching means 8 is switched from the reception side to the transmission side. Further, the selection means 26 selects the frequency data stored in the storage means 27 and converts the data into the conversion means 27.
8.

Therefore, the modulated signal supplied to the transmitter 2 is the output data generated by the output data generating means 11, and the frequency data in the output data is the frequency data stored in the storage means 25. The carrier wave frequency of the modulated wave transmitted from the transmitter 2 is a frequency corresponding to the 41 frequency data in the storage means 27, and this carrier wave is modulated by the output data and transmitted.

When the transmission of the output data is completed after a predetermined period has elapsed, the selection delay means 23 outputs a switching signal for switching the selection means 26, and also eliminates the signals output to the transmission/reception switching means 8 and the modulation signal switching means 12. . Therefore, the selection means 26 selects the frequency data stored in the storage means 25 instead of the frequency data stored in the storage means 27 and supplies it to the conversion means 28. Further, the modulated signal switching means 12 is switched to the output side of the audio signal amplifier IO, and the transmission/reception switching means 8 is switched to the receiving side. As a result, the frequency synthesizer 5 is set to a frequency corresponding to the frequency data of the empty channel,
Amateur radio communication equipment enters a state in which it waits for radio waves on the frequency of an empty channel to be transmitted.

In addition, next, the case of shifting to an empty channel via a repeater station will be explained. In this case, the offcent instruction switch 19-2 issues an offcent instruction, and the call instruction means 21 issues a call instruction. When the PTT switch 18 is turned on in this state,
As described above, the switching means 7 is switched to connect the offset calculating means 6, and the transmission frequency is reduced by -5M tlz, for example, as described above. In this state, the transmission/reception switching means 8 is switched to the transmission side, and the -5M
A modulated wave obtained by modulating the carrier wave lowered by 1 lz with the output of the tone oscillator 14 is transmitted. On the other hand, the timer 32 starts counting the time when the switching means 7 is switched, and the specific data outputting means 33 is driven for a predetermined period from the time when the set period of the timer 32 has elapsed. By this driving, the specific data is transferred from the specific data output means 33 to the storage means 20 and stored. Therefore, the specific data output from the specific data output means 33 and stored in the storage means 25 and the code stored in the code storage means 29 are output data from the time when the PTT switch 18 is turned on and the set period of the timer 32 has elapsed. The data is processed by the generating means 11, generated as output data, and transmitted for a predetermined period at a transmission frequency reduced by -5M tlz.

On the other hand, tone oscillation has been occurring since the switching means 7 was switched to the offset calculation means 6 side as described above.

However, while this output data is being output, the tone oscillation instructing means 13 is temporarily stopped and tone oscillation is stopped.

On the other hand, the offset instruction means 19-1 generates an output during the period from when the PTT switch 18 is turned on until it is turned off. Offcent indicating means 19-
This output from 1 causes the switching means 23-1 to switch from the contact position shown in FIG. Therefore, the frequency data corresponding to the empty channel searched by the empty channel searching means 22 is supplied to the delay means 23-3, and the PT
Offset means that the T switch 18 is turned off.

It is delayed until it is detected by the output instructing means 19-1, and upon this detection, the selection means 2 is outputted via the output determining means 23-2.
4.

Therefore, the selection means 24 is switched by the output of the output determination means 23-2, and the frequency data corresponding to the empty channel is transferred to the storage circuit 25. As a result, frequency data corresponding to the above-mentioned searched empty channel,
The stored contents of the code storage means 29 are generated as output data and transmitted at a transmission frequency lowered by -5Ml1z.

Note that at the same time as this output data is generated and output, the tone oscillation instruction means 13 is reset and tone oscillation is stopped.

When the transmission of the L output data continues for a predetermined period, it ends and the standby state is entered. The offset indicating means 19-1 is set by the signal after the predetermined period has elapsed.

Therefore, when transmitting a control signal including frequency data corresponding to an empty channel via a repeater station, as shown in FIG. and code are transmitted for a predetermined period of time, and immediately after the PTT switch 18 is turned off, the frequency data and code corresponding to the empty channel are output for a predetermined period of time. In addition, there is a gap between when the PTT switch 18 is turned on and when the specific data and code are transmitted, and from when the specific data and code transmission ends, the frequency data and code corresponding to the empty channel are transmitted. The tone signal is output for a period of time until the former tone signal opens the repeater station, and the repeater station will not be in the open state when a control signal etc. is output. .

Note that during the predetermined period when the specific data output means 32 is outputting the characteristic data, the signal for driving the transmission side is sent to the transmission/reception switching means 8 during the output period of the specific data.
This is to allow the specific data and code to elapse for a predetermined period even if the T-switch 18 is turned off. Therefore, in this case, after the specific data and code are transmitted, the frequency data and code corresponding to the empty channel are transmitted successively.

Next, the operation of receiving a call from another amateur radio communication device and being drawn into a designated empty channel will be explained.

When specific data and a code are received, the code in the received input data is compared with the stored code stored in the code storage/storage means 29 in the code comparing means 30, and a match is detected. When a match between the two codes is detected, the code squelch circuit 31 is activated by the output of the code comparing means 30.
The squelch operation is canceled. Therefore, a voice call or the like can be made as necessary. The same operation occurs when frequency data and code corresponding to an empty channel are received next. That is, the selection means 24 is switched, and frequency data in the input data of the received signal is selected and supplied to the storage means 25. At this time, the selection means 26 selects the frequency data stored in the storage means 25, and the frequency synthesizer 5 is set to a frequency corresponding to the frequency data in the manual data of the received signal. As a result, the amateur radio communication device is automatically drawn into an empty channel. Note that even if the specific data is once stored in the storage means 25, it works in the same way as above, but in this case, the specific data is data corresponding to a frequency outside the amateur band, so no actual pull-in is performed and no transmission is performed. .

Therefore, by pressing the PTT switch 18, the transmission/reception switching means 8 is switched to the transmission side and transmission is performed.
By ceasing to press the TT switch 18, the transmission/reception switching means 8 is switched to the receiving side, and communication is performed at the frequency of the above-mentioned empty channel.

(Effects of the Invention) As explained above (according to the present invention), communication is enabled via a repeater station, an empty channel according to a call instruction is searched, and at least the information on the found empty channel and the other party's In an amateur radio communication device that is designed to draw the other station into the empty channel by transmitting the agreed code information at the calling frequency, when communicating via a repeater station, a predetermined PTT switch during the call state is used. At least the code information is transmitted during the call period, and the empty channel information is transmitted at a frequency corresponding to the calling frequency when the call is not made, and a tone for accessing the repeater station is transmitted during the call state.
The operation of the switch will no longer interfere with automatic line connection to an empty channel via a repeater station.

Also, since the code information is transmitted first, the code squelch of the other station is opened, and if necessary, a call can be made via the repeater station.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. FIG. 2 is a schematic diagram for explaining the operation of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Communication device main body, 2... Transmission part, 3... Receiving part, 5... Frequency synthesizer, 6... Offset calculation means, 7... Switching means, 8... Transmission/reception switching means,
9... Microphone, 11... Output data generation means, 18... PTT switch, 19-1... Offset instruction means, 21... Calling means, 22... Empty channel searching means, 23 ...Selection delay means, 24 and 2
6... Selection means, 25.27... Storage means, 31.
...Code squelch means, 32...Timer, 33...
・Specific data output means.

Claims (1)

[Claims] Communication via the repeater station is enabled, and an empty channel is searched in response to a calling instruction, and at least information on the searched empty channel and code information agreed upon with the other station are transmitted on the calling frequency to obtain the code information. In an amateur radio communication device that cancels the squelch of the other station when a match is found and draws the other station into the searched empty channel, the push-to-talk switch is activated when communicating via a repeater station. transmitting at least the code information at a predetermined time during the call state, and at least the searched empty channel information when changing from the call state to the non-call state at a frequency corresponding to the calling frequency, and transmitting the repeater station during the call state; A communication device for amateur radio, characterized in that it transmits a tone signal to access.