JPH0736533B2 - Amachiyua radio communication device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an amateur radio communication device configured to automatically connect a line in response to a call instruction, and more specifically, to a repeater station when a repeater station is used. The present invention relates to an amateur radio communication device that forms an automatic line suitable for shifting to an empty channel via a station.

(Prior Art) Generally, in FM communication in an amateur radio communication device, a vacant frequency (empty channel) is found from the calling frequency (channel), the other side station is notified, and each other moves to that frequency for communication. . These operations are performed manually.

On the other hand, an empty channel is automatically found according to the call instruction, and a control signal including empty channel information for moving the frequency of the partner wireless communication device to the found empty channel is transmitted, The applicant has already proposed an amateur radio communication device in which the radio communication device is also immediately moved to the found free channel (Japanese Patent Application No. 59-128451 to Japanese Patent Application No. 59-128465).

That is, when a call is issued and a certain condition is met, a search for an empty channel is started, and a line connection is automatically made with the found empty channel.

(Problems to be solved by the invention) However, in the above-mentioned amateur radio communication device, when the automatic line connection operation is performed via the repeater station, the line connection is made with special consideration of the time for opening the repeater station. There is a problem that processing such as sending a control signal including at least empty channel information is not performed, or the identification signal sent by the repeater station and the control signal for line connection are superimposed and the control signal is disturbed. There was a problem. In addition, there is a possibility that some repeater stations may not be able to handle the conventional control signal transmission timing, and there is a drawback that the automatic line connection is hindered.

The present invention solves the above problems and drawbacks of conventional encouragement, and communicates empty channel information to a partner station side via a repeater station before communicating with a partner station via a searched empty channel. It is an object of the present invention to provide an amateur radio communication device capable of automatically pulling a side station into a free channel and then automatically connecting the free channel as a communication channel to perform simplex communication with a partner station.

Communication that does not go through the repeater station is called simplex communication.

(Means for Solving Problems) The present invention searches for an empty channel in response to a call instruction, transmits at least the searched empty channel information at a repeater station calling frequency, and receives a transmission signal from the repeater station. An amateur radio communication device adapted to draw a side station into the idle channel and perform simplex communication with the opposite station by the idle channel, wherein a push-to-talk switch is used in the case of communication via a repeater station. The tone signal for accessing the repeater station during the period in which the call is transmitted is transmitted at the repeater station calling frequency, and when the push-to-talk switch is changed from the call state to the non-call state, the idle channel information is set to the above-mentioned empty channel information. It is designed to transmit at the repeater station calling frequency.

(Operation) In the present invention configured as described above, when transmitting the searched empty channel information through the repeater station before the simplex communication with the partner station, tone transmission for accessing the repeater station is pushed. It is transmitted while the tow talks switch is in the call state, and empty channel information is transmitted from when the push tow talks switch is turned off.

As a result, the repeater station is opened and the transmission of the identification signal sent by the repeater station is completed in the period from when the push-to-talk switch is set to the call state to when it is set to the non-call state. It will not hinder the line connection with the searched empty channel.

(Examples of the Invention) Hereinafter, the present invention will be described with reference to Examples.

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

Reference numeral 1 denotes a communication device main body, which is an offset calculation means for reducing a frequency division ratio to the transmitting unit 2, the receiving unit 3, the antenna switching unit 4, the frequency synthesizer unit 5, and the frequency synthesizer unit 5 to offset the synthesize frequency by a predetermined value. 6, a switching unit 7 that selectively bypasses the offset calculation unit 6, a transmission / reception switching unit 8 that selectively supplies power to the transmission unit 2 and the reception unit 3 to switch between transmission and reception, and the output of the microphone 9 is amplified. The audio signal amplifier 10, the output of the audio signal amplifier 10 and the output of the output data generating means 11 which will be described later are switched, and the modulation signal switching means 12 for supplying to the transmitting section 2 as a modulation signal is opened, and the repeater station is opened when the repeater station is used. Tone oscillation instruction means 13 for giving tone oscillation instruction for
A tone oscillator 14 that oscillates a subtone signal in response to the instruction from 13 and a voice signal amplifier 15 that receives and amplifies a voice signal from the receiver 3 are provided, and the transmitter 2 modulates the output of the modulation signal switching means 12. As a signal, the frequency corresponding to the oscillation output of the frequency synthesizer unit 5 is modulated and transmitted, and when receiving, the output of the frequency synthesizer unit 5 is used as a local oscillation output to convert the received signal frequency into an intermediate frequency and receive it. Is configured. In addition, 16 is an antenna and 17 is a speaker.

Push to talk on the microphone 9
switch, abbreviated as talk, PTT)
When the switch 18 is turned on, the transmission / reception switching means 8 is switched from the receiving side to the transmitting side.
Further, the antenna switching unit 4 is configured to switch in conjunction with the transmission / reception switching unit 8. Furthermore, the output of the PTT switch 18 is supplied to the offset indicating means 19 _-1 ,
The output of the TT switch 18 is on, and the switching means 7 when the offset instruction has been made by offset indication switch 19 _-2 instructing communication via a repeater station is switched from the contact position shown in FIG. 1 offset calculation Means 6 are biased.

Furthermore, the offset instruction means 19 _{-1 is used} to change the switching means 7
From the contact position shown in FIG. 1 until the output is generated from the output data shaping means 11,
The tone oscillation instructing means 13 is instructed to perform tone oscillation. In addition, the tone oscillator that received the tone oscillation instruction 14
Supplies the oscillation output to the transmitter 2.

The automatic channel selection device 20 includes a call instructing means 21, an empty channel searching means 22 for searching for an empty channel in response to an output of the call instructing means 21, and a frequency corresponding to an empty channel found by the empty channel searching means 22. It is provided with a selection delay means 23 for selectively delaying the transmission of data, and for transferring the frequency data corresponding to the empty channel which is output after being selectively delayed, to the storage means 25 via the selection means 24. When the delay means 23 transfers the frequency data of the empty channel, the selecting means 24 is placed on the selection side of the frequency data of the empty channel output from the selecting delay means 23, and the transmission / reception switching means 8 is provided.
Is switched from the receiving side to the transmitting / receiving side and the modulation signal switching means 12 is switched from the audio signal amplifier 10 side to the output side of the output data generating means 11 for a predetermined period, and when this predetermined period has elapsed, the selecting means 26 is operated to switch the means 7. The frequency data stored in the storage means 25 is supplied instead of the frequency data stored in the storage means 27 described later. The output of the selection means 24 is supplied to the storage means 25.

The selection delay means 23 is a switching means 23 for receiving the empty channel frequency data output from the empty channel searching means 22.
_-1 and the frequency data corresponding to the empty channel output from the empty channel searching means 22 through one contact of the switching means 23 _-1 , and when outputting, switch to the transmission state as described above, and select means The output discriminating means 23 _-2 for supplying a selection signal to 24, 26 and the like, and the frequency data corresponding to the empty channel output from the empty channel searching means 22 via the other contact of the switching means 23 _-1 are used as an offset instruction. means
The PTT switch 18 output that is output via 19 _-1
TT to the edge at the output of the off-state of the switch 18 is delayed consists delay means 23 _-3 for supplying the output determination unit 23 _-2, switching means 7 output from the offset instruction unit 19 _-1
Is configured to switch the contact state of the switching means 23 _-1 , and the offset instructing means 19 _-1 is configured to be reset at the end of transmission of the output from the output data generating means 11. is there.

The automatic channel selection device 20 further includes a group code storage means.
29, storage frequency data of the storage means 25 and group code storage means
The output data generating means 11 for generating corresponding output data by registering the storage group codes of 29, the storing means 27 for storing frequency data corresponding to the oscillation frequency at the time of calling, and the input received by the receiving section 3. A group code comparison means 30 for detecting a match between the group code in the data and the stored group code of the group code storage means 29 is provided, and the frequency data in the input data is supplied to the selection means 24. The output from the selecting means 26 is supplied to a converting means 28 for converting the output into a frequency dividing ratio, the frequency data is converted into a frequency dividing ratio and supplied to the switching means 7. Furthermore, the selection means 24 is switched to select the frequency data in the input data by the coincidence detection output of the group code comparison means 30 and supply it to the storage means 25.

In the amateur radio communication device according to the embodiment of the present invention configured as described above, the storage means 27 stores the frequency data corresponding to the transmission frequency at the time of the outgoing call, which has been previously discussed with the communication partner, and the group code storage means. The group code that has been negotiated with the communication partner in advance is stored in 29.

The oscillation frequency of the frequency synthesizer 5 in the offset instruction off state is set by the storage frequency data of the storage means 27 or 25 supplied via the selection means 26. That is, the division ratio of the variable frequency divider of the frequency synthesizer 5 is set according to the storage frequency data of the storage means 27 or the storage means 25 supplied via the selection means 26. Further, at the time of transmission and when the offset instruction is given, the offset calculating means 6 operates to reduce the predetermined offset, for example, the transmission frequency by -5 MHz.

On the other hand, the transmission / reception switching means 8 is normally switched to the reception side, and the radio wave having the set reception frequency determined by the oscillation frequency of the frequency synthesizer 5 is received.

Therefore, when communication is not performed via the repeater station, the offset instruction is not given by the offset instruction switch 19 _-2 . When the PTT switch 18 is turned on, the transmission / reception switching means 8 is switched to the transmission side, the antenna switching portion 4 is connected to the transmission portion 2 and the antenna 16, and the modulation signal switching means 12 is switched to the amplifier 10 side. It is made to be in a state where 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 section 5 with an audio signal is transmitted.

Further, when the PTT switch 18 is turned off, the communication device main body is switched to the reception state contrary to the above, and waits at the carrier frequency at the time of the transmission. So-called simplex communication is performed by repeating the above transmission and reception.

On the other hand, when communicating via the repeater station, the transmitting side transmits at the oscillation frequency offset by a predetermined frequency, for example, -5 MHz from the receiving side frequency.

That is, when communicating via the repeater station, the offset instruction is given by the offset instruction switch 19 _-2 . By the PTT switch 18 in the ON state in this state, the switching means 7 by the output of the offset instruction unit 19 _-1 is switched from the state of FIG. 1. Therefore, the frequency division ratio is reduced by the offset calculation means 6. In addition, a tone oscillation instruction is given. As a result, the oscillating frequency from the frequency synthesizer 5 is lowered, and the modulated wave obtained by modulating the carrier having a frequency lower than the transmission frequency at the time of transmission by, for example, -5 MHz at the output of the tone oscillator 14 is transmitted.
Further, when the PTT switch 18 is turned off, tone oscillation is stopped. Therefore, when the repeater station is used, tone oscillation is generated during the ON output of the PTT switch 18.

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

When the call instruction is issued by the call instruction means 21, the empty channel searching means 22 which has received the call instruction signal searches for an empty channel, and the empty channel searching means 17 finds an empty channel.

Now, when the offset instruction switch 19 _-2 is in the OFF state, that is, when the repeater station is not used, the offset instruction means 19 _-1 switches the switching means 7 and the switching means 23 _-1 to the states 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 output through the switching means 23 _-1 to the output determining means 23.
_-2 , and is output to the selecting means 24 via the output determining means _23-2 . At the same time, by the selection means 24, selection delay means
The frequency data from the empty channel search means 22 supplied via 23 is selected, transferred to the storage means 25, and stored in the storage means 25.

On the other hand, the group code stored in the group code storage means 29 and the storage frequency data of the storage means 25 transferred to the storage means 25 by the above are registered in the output data generation means 11,
Predetermined data processing is performed to generate output data.

On the other hand, when the empty channel is transmitted, the selection delay means 23 produces an output at least until the end of transmitting the output data to the modulation signal switching means 12 and the transmission / reception switching means 8. The modulation 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 storage frequency data of the storage means 27 and supplies it to the conversion means 28.

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 storage frequency data of the storage means 25. The carrier frequency of the modulated wave transmitted from the transmitter 2 is a frequency corresponding to the stored frequency data of the storage means 27, and this carrier is modulated by the output data and transmitted.

When the transmission of the output data is completed after the lapse of a predetermined period, the selection delay means 23 outputs a switching signal for switching the selection means 26, and the transmission / reception switching means 8 and the modulation signal switching means.
The signal output to 12 is extinguished. Therefore, the selection means 26 selects the storage frequency data of the storage means 25 instead of the storage frequency data of the storage means 27 and supplies it to the conversion means 28. The modulation signal switching means 12 is switched to the output side of the audio signal amplifier 10, and the transmission / reception switching means 8 is switched to the reception side. As a result, the frequency synthesizer 5 is set to the frequency corresponding to the frequency data of the empty channel, and the amateur radio communication device waits for the radio wave of the frequency of the empty channel to be transmitted.

The case of shifting to an empty channel via the repeater station will be described next. In this case, an offset instruction is given by the offset instruction switch 19 _-2 ,
A call instruction is issued by the call instruction means 21. When the PTT switch 18 is turned on in this state, the offset calculation means 6 is inserted as described above, and the transmission frequency is reduced by, for example, -5 MHz as described above. As a result, a modulated wave obtained by modulating the carrier wave with the output of the tone oscillator 14 is transmitted. On the other hand, the offset instructing means 19 _-1 produces an output during the period from when the PTT switch 18 is in the on state to when it is in the off state. This output from the offset instructing means 19 _-1 switches the switching means 23 _-1 from the contact position shown in FIG. Therefore, empty channel search means 22
The frequency data corresponding to the empty channel searched by is supplied to the delay means 23 _-3 and the offset instruction means 19 _-1.
It is delayed until the PTT switch 18 detected via the switch is turned off, and when the PTT switch 18 is turned off, the delay unit 23 _-3 outputs the output determining unit 23 _-2 to the selecting unit 24.
Is supplied to.

As a result, the frequency data corresponding to the searched empty channel and the stored content of the group code storage means 29 are generated as output data and transmitted at the transmission frequency reduced by -5 MHz. It should be noted that tone oscillation is performed from the time when the switching means 7 is switched to the offset calculating means 6 side as described above, and at the same time when this output data is generated, the tone oscillation instructing means 13 is reset and the tone oscillation is stopped. .

When the transmission of the output data is continued for a predetermined period, the transmission is completed and the standby state is set. The offset indicating means 19 _-1 is reset by the signal after the lapse of the predetermined period.

Therefore, the control signal including the frequency data corresponding to the empty channel is transmitted via the repeater station as shown in FIG.
The signal is output for a predetermined period immediately after the switch 18 is turned off. On the other hand, the tone signal is output for a period from immediately after the PTT switch 18 is turned on until the control signal is output, and the repeater station is opened.When the control signal is output, the repeater station is opened. Things that do not happen will not occur.

Next, the operation of receiving a call from another amateur radio communication device and pulling it into the designated empty channel will be described.

The group code in the received input data is the group code comparing means 30.
At, the comparison is made with the stored group code stored in the group code storage means 29, and a match is detected. When a match between the two group codes is detected, the selecting means 24 is switched by the output of the group code comparing means 30, and the frequency data in the input data of the received signal is selected and supplied to the storing means 25. At this time, the selection means 26 has selected the storage frequency data of the storage means 25, and the frequency synthesizer 5 is set to the frequency corresponding to the frequency data in the input data of the received signal. As a result, the amateur radio communication device is automatically pulled into the empty channel.

Therefore, by pressing the PTT switch 18, the transmission / reception switching means 8 is switched to the transmission side for transmission, and by stopping the pressing of the PTT switch 18, the transmission / reception switching means 8 is switched to the reception side. Communication will be performed at the frequency of the drawn empty channel.

(Effects of the Invention) As described above, according to the present invention, communication is made possible via a repeater station, an empty channel is searched for by a calling instruction, and at least the found empty channel information is transmitted at the calling frequency to communicate with the other party. In an amateur radio communication device adapted to pull a side station into the empty channel, tone transmission for accessing the repeater station is performed during a period in which the PTT switch is in a communication state during communication through the repeater station, and the PTT switch is used. Since the empty channel information is transmitted at the frequency corresponding to the calling frequency when is switched from the call state to the non-call state, the automatic line connection to the empty channel via the repeater station is hindered by the operation of the PTT switch 4. It will never come.

[Brief description 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 one embodiment of the present invention. 1 ... Communicator body, 2 ... Sending section, 3 ... Reception section, 5 ...
... Frequency synthesizer, 6 ... Offset calculating means, 7
...... Switching means, 8 ...... Transmission / reception switching means, 9 ...... Microphone, 11 ...... Output data generating means, 18 ...... PTT switch, 19 _-1 ...... Offset instructing means, 21 ...... Calling means, 22
...... Empty channel search means, 23 ...... selection delay means, 24 and 26 ...... selection means, 25, 27 ...... storage means.

Claims (1)

[Claims] 1. A free channel is searched for by a calling instruction,
At least the searched empty channel information is transmitted at the repeater station calling frequency, the partner station receiving the transmission signal from the repeater station is pulled into the empty channel, and simplex communication is performed with the partner station by the empty channel. In the case of an amateur radio communication device, the tone signal for accessing the repeater station is transmitted at the repeater station calling frequency during the period when the push-to-talk switch is in the communication state in the case of communication via the repeater station. An amateur radio communication device, wherein the idle channel information is transmitted at the repeater station calling frequency when the push-to-talk switch is switched from the call state to the non-call state.