JPS619027A - Amateur radio communication equipment - Google Patents

Abstract

PURPOSE:To bring automatically an idle channel into a talking channel by providing the 1st and 2nd storage means storing respectively a oscillation frequency data at call and a frequency data and a group code storage means and generating an output data corresponding to a storage group code and a storage frequency data of the 2nd storage means. CONSTITUTION:An oscillation frequency of a frequency syntherizer 5 is set by a stroge frequency data of a storage means 22 or 20 applied via a selection means 21. A group code in the received input data is compared with the stored group code at a group code comparison means 24 and when the coincidence between both the group codes is detected, the frequency data in the input data of the reception signal is selected and fed to the storage means 20. A selection means 21 selects a storage frequency data of the storage means 20 and the frequency synthesizer 5 is set to a frequency corresponding to a frequency data in the input data of the reception signal. Thus, the amateur radio communication equipment is locked automatically to the idle channel.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an amateur radio communication device that automatically connects a telephone channel.

(Prior Art) Conventional amateur radio communication devices are configured to manually set a communication channel with a communication partner.

For this reason, when using conventional amateur radio communication equipment, it is not possible to search for an empty communication channel (hereinafter referred to as an empty channel) and automatically connect the communication channel.

(Object of the Invention) The present invention has been made in view of the above, and an object thereof is to provide an amateur radio communication device that can automatically set an empty channel as a communication channel.

(Configuration of the Invention) FIG. 1 is a functional block diagram showing the configuration of the present invention.

Reference numeral 1 denotes a communication device main body, which includes a transmitting section 2, a receiving section 3, an antenna switching section 4, a frequency synthesizer section 5, and a transmitting/receiving section that selectively supplies power to the transmitting section 2 and receiving section 3 to switch between transmission and reception. a switching means 6, an audio signal amplifier 8 for amplifying the output of the microphone 7, and a modulation signal switching means 10 for switching between the output of the audio signal amplifier 8 and the output of the subsequent output data generation means 9 and supplying it as a modulated signal to the transmitter 2. , an audio signal amplifier that receives the audio signal from the receiving section 3 and has an m width, and the transmitting section 2 modulates the oscillation output of the frequency synthesizer section 5 using the output of the modulation signal switching means 10 as a modulation signal. It is depicted as transmitting, and when receiving, the output of the frequency synthesizer 5 is used as a local oscillation output, and the received signal frequency is converted to an intermediate frequency for reception. In addition,
12 represents an antenna, and 13 represents a speaker.

Button to talk for microphone 7
A push to talk (PTT) switch 14 is installed, and by turning on the PTT switch 14, the transmission/reception switching means 6 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 6.

The automatic channel selection device 15 includes a call instruction means 16, an empty channel search means 17 for searching for an empty channel in response to the output of the call instruction means 16, and a storage means 20 for storing frequency data.

The frequency data of the empty channel found by the empty channel searching means 17 is supplied to the selecting means 25, and when an empty channel is detected, the selecting means 25 is supplied with the frequency data of the empty channel outputted from the empty channel searching means 17. On the selection side, the transmission/reception switching means 6 is switched from the reception side to the transmission side and the modulation signal switching means 10 is switched from the audio signal amplifier 8 side to the output side of the output data generation means 9 for a predetermined period, and when this predetermined period has elapsed, the selection is made. The means 21 is configured to supply frequency data stored in the storage means 20 to the frequency synthesizer 5 instead of frequency data stored in the storage means 22, which will be described later.

Further, the automatic channel selection device 15 includes a group code storage means 23, an output data generation means 9 which stores the group code stored in the group code storage means 23 and the frequency data stored in the storage means 20, and generates corresponding output data. A storage means 22 for storing frequency data corresponding to the oscillation frequency at the time of calling, a storage group code of the group code storage means 23, and a reception section 3.
The frequency data in the pano data is supplied to the selection means 25.

The coincidence detection output of the group code comparison means 24 is supplied to the selection means 25 so as to select frequency data in the input data and supply it to the storage means 20. Also, during reception, hood squelch means 2 controls the low frequency circuit to a mute state except when called with the same group code as the own station.
6 is provided, and the code squelch means 26 is configured to release the mute state by the output of the PTT switch 14.

(Operation of the Invention) In the amateur radio communication device of the present invention configured as described above, the storage means 22 stores frequency data corresponding to the oscillation frequency at the time of making a call, which has been arranged in advance with the communication partner, and stores the group code. The means 23 stores the group code agreed upon with the communication partner in advance (.

Further, the oscillation frequency of the frequency synthesizer 5 is determined by the selection means 21.
It is set by the storage frequency data of the storage means 22 or 20 supplied via the storage means 22 or 20. That is, the frequency division ratio of the variable frequency divider of the frequency synthesizer 5 is set according to the stored frequency data of the storage means 22 or 20 supplied via the selection means 21.

On the other hand, the transmission/reception switching means 6 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.

4 When the call instruction means 16 issues an i-call instruction, the empty channel search means 17 receives the call instruction signal.
A search for an empty channel is performed. When an empty channel is found by the empty channel search means 17,
The frequency data of the empty channel will be stored in the storage means 20 via the selection means 25.

On the other hand, the group code stored in the group code storage means 23 and the storage means 20 transferred to the storage means 20 as described above
The stored frequency data is stored in the output data generation means 9, and subjected to predetermined data processing to be generated as output data.

On the other hand, when the empty channel searching means 17 detects an empty channel, it sends at least the output data to the modulation signal switching means 10 and the transmission/reception switching means 6 for a period of 1. Generate output. The modulated signal switching means 10 receiving this output is switched from the output selection side of the audio signal amplifier 8 to the output selection side of the output data generation means 9, and the transmission/reception switching means 6 is switched from the reception side to the transmission side. Also, selection means 2
1 selects the frequency data stored in the storage means 22 and executes the frequency data.
is applied to the wave number synthesizer 5.

Therefore, the modulated signal supplied to the transmitter 2 is the output data generated by the output data generating means 9, and the frequency data in the output data is the frequency data stored in the storage means 20, that is, the frequency data of an empty channel. Transmitter 2
The carrier frequency of the modulated wave transmitted from the storage means 22
This is the frequency corresponding to the stored frequency data, 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 empty channel search means 17 outputs a switching signal for switching the selection means 21, and also erases the signals output to the transmission/reception switching means 6 and the modulation signal switching means 10. let Therefore, the selection means 21 selects the frequency data stored in the storage means 20 instead of the frequency data stored in the storage means 22 and supplies it to the frequency synthesizer 5. Further, the modulation signal switching means 10 is switched to the output side of the audio signal amplifier 8, and the transmission/reception switching means 6 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, and the amateur radio communication device is placed in a state where it receives radio waves of the frequency of the empty channel.

Next, we will explain the effect of receiving a call from another amateur radio communication device and being drawn into a designated empty channel.

The group 7 code in the received input data is compared in the group code comparison means 24 with the stored group code stored in the detailed code storage means 23, and a match is detected. When a match between the two group codes is detected, the selection means 25 is switched λ by the output of the group code comparison means 24, and the frequency data in the input data of the received signal is selected and supplied to the storage means 20.

At this time, the selection means 21 selects the frequency data stored in the storage means 20, and the frequency synthesizer 5 is set to a frequency corresponding to the frequency data in the input data of the received signal. As a result, the amateur radio communication device is automatically drawn into an empty channel.

Therefore, by pressing the PTT switch 14, the code squelch is canceled, and by pressing the PTT switch 14 again, the transmission/reception switching means 6 is switched to the transmission side, and transmission is performed. Further, at the same time as the PTT switch 14 is pressed, the squelch by the code squelch means 26 is canceled. By ceasing to press the PTT switch 14, the transmission/reception switching means 6 is switched to the receiving side, and communication is performed at the frequency of the above-mentioned empty channel.

(Example of the invention) Next, the present invention will be specifically explained with reference to Examples.

FIG. 2 is a block diagram showing one embodiment of the present invention.

The shoreline section 2A includes an audio signal amplifier 8 that amplifies the output of the microphone 7, an output of the audio signal amplifier 8, and a modem 4, which will be described later.
A modulating signal switching means 10 receives the output data modulated by the frequency synthesizer 5 as an input; It is equipped with a high frequency amplifier 32 and a high frequency power amplifier 33 that amplifies the power of the output of the high frequency amplifier 32 and supplies it to the antenna 12 via the antenna switching unit 4, and transmits the high voice signal from the microphone 7 or the output from the modem 41. do.

The receiving section 3A receives and amplifies the modulated wave supplied via the antenna switching section 4, and mixes the oscillation output of the frequency synthesizer If5 with the output of the high frequency amplifier 34 and converts the mixture into an intermediate frequency signal. mixer 35, mixer 3
5, that is, the intermediate frequency amplifier 36 that amplifies the intermediate frequency signal, the output of the intermediate frequency amplifier 36 is 1! a demodulator 37 that performs wA, a mute unit 120 that mutes the output of the demodulator 37, an audio signal amplifier that amplifies the audio signal outputted via the mute unit 120 and drives the speaker 13;
, a comparator 3 that detects whether the channel is empty by receiving the demodulator horn and detecting whether the level is below a predetermined level.
9, and the output of the demodulator 37 is supplied to the modem 41.

-Ka, 80L*vIu9. A, □-0 exists □, “
iBasically the CPU81. It consists of a ROM 82, a RAM 83, an input port 84, an output port 85, and a timer 86.

Further, 101 is a code selection means consisting of a switch for selecting a call sign code setting instruction, a setting code A setting instruction, and a setting code B setting instruction, and 102 is a code selection means consisting of a numeric keypad switch for setting a call sign and setting code. setting means; 5 is a group code selection means for selecting a setting code to be used for standby; and 5 is a switch;
, 8 is a system operating state setting means consisting of a switch and designating whether to automatically connect the communication device to the other party's communication device, 9 is a call setting means consisting of a switch instructing to make a call, and 124 is a rotary encoder. This is a frequency data setting means for setting frequency data using an up/down counter, and the output is set in a frequency data storage area 122, which will be described later.

Reference numeral 161 denotes a frequency data selection setting means for instructing what the set frequency data corresponds to, and it is specified whether it corresponds to the start channel frequency or the frequency data f1 to f5. Reference numeral 129 is a switch, and priority selection state setting means specifies that predetermined frequency data should be preferentially selected as an empty channel when searching for an empty channel. Reference numeral 134 is a switch, which is opposite to the priority selection state setting means 129. selection/exclusion state setting means for specifying that predetermined frequency data should not be selected as an empty channel when searching for an empty channel; 139 is a reset switch; 148 is for instructing replacement of the start channel frequency and the empty channel frequency; The parse setting means 150 is a code squelch setting means for instructing to automatically cancel the squelch by using the group code as a squelch code.

A program for controlling the CPU 81 is written in the ROM 82, and a code selection means 10 is written in the input port 84.
Output of 1, output of code setting means 102, group code selection means, output of 5, system operating state setting means, output of 8, call setting means, output of 9, frequency data setting means 12
4, the output of the frequency data selection setting means 161, the output of the preferential light selection state setting means 129, the output of the selection exclusion state setting means 134, the output of the reset switch 139, the output of the reverse setting means 148, the code squelch setting means 1
50, the output of the PTT switch 14, the demodulated output data of the modem 41 converted by the serial/parallel converter 42, and the output of the comparator 39 are supplied. The CPLJ 81 reads the signals and data supplied to the input port 84 according to the program stored in the ROM 82 when necessary, stores them in the RAM 83, and performs calculations, comparisons, and data processing, and is set by the timer 86. It is determined whether the time input state has continued, etc., and according to the result of calculation, comparison, processing, and determination, data display 2, call sign display 4, empty channel surge display 126, etc. , a display signal to the line connection display 146 and code squelch display 151, frequency data (dividing ratio) to the frequency synthesizer 5, a switching signal to the transmission/reception switching means 6, a switching signal to the modulation signal switching means 10, and parallel /Serial converter 40 outputs output data to modem 41 and mute control signal to mute means 120, latched or unlatched as necessary.

In this embodiment configured as described above, for example, 144
MHz band (144,520MHz ~ 145.730.M
Hz) transmission and reception, chivun:? - Set the channel to 20 MHz steps. In this case, the number of channels is 64.

Note that FIG. 3 further shows the block diagram shown in FIG. 2 as a functional block diagram.

Hereinafter, the operation of one embodiment of the present invention will be explained with reference to the flowcharts shown in FIGS. 4 to 6 as well as FIG. 3.

First, when the amateur radio communication device of the present invention is operated, it enters a receiving state unless a special operation is performed.

When the program is started, a call sign code is set by the code selection means 101.

V is selected (step ar).

The code selection means 101 can specify setting of a call sign code, setting codes A and B, and is controlled to the setting state of setting code A by a signal from the microcomputer 80 when a call sign code setting instruction is given, as will be described later. This is possible. Also, the setting code △,
B is designated as a setting code in order to function as a so-called group code and also as a code squelch code, but will be designated as group codes A and B below.

In addition, the call sign code etc. can be set using code setting means 1.
Set by 02. For this reason, for example, one character of the ASCII code is specified by pressing the code setting means 102 four times, and the code setting means 10 pressed the first two times.
Add the value indicated by 02 to obtain the hexadecimal number corresponding to the upper 3 bits of the 7 unit ASCII code. Let each represent a hexadecimal number corresponding to a bit.

When setting a call sign code is selected in the switch a1, the second count area (hereinafter referred to as a counter) 104 provided in the RAM 83 for setting the number of digits of the call sign is cleared. (step a2), and then the first counter 103 provided in the RAM 83 is cleared in order to count the number of times the pressed code setting means 1.02 is suppressed to correspond to one character of the ASCII code. (Step a3). Next, the key switch output supplied from the code setting means 102 is loaded into the call sign code calculation means 106 which adds the values pressed twice to convert it into an ASCII code (step a4), and then the first The counter is +I I! (step a)
S). Steps a4 to a5 are repeated a number of times corresponding to one ASCII code character (step aS). The input code is then converted to ASCII code (step a7)
, the converted ASCII code is stored in the call sign code storage area 107 provided in the RAM 83, and the stored contents are displayed on the call sign display 4 via the code operation stage 1 and 3 (Stenbu aS). Next, the second counter 104 is incremented by 1 (step a9), and steps a3 to a9 are repeated the number of times corresponding to the digit of the call sign (step alO). In step 810, the count value of the second counter 104 is equal to the call sign. When the value corresponds to the number of digits, the call sign code is completely stored in the call sign code storage area 107, and a flag is set in the call sign code setting state storage area 108 provided in the RAM 83. Then, the call sign code selection of the code selection means 101 is canceled and the position where the group code is to be set is selected (step a12).

Following step a12, it is detected in the code selection means 101 whether setting a group code has been selected (step a13).

In this embodiment, the group code is group code (A).

Although a case is illustrated in which two group codes, A and B, can be set, it is not necessary to limit the setting to two group codes.

When selecting a call sign code is not selected in step a1, step aL3 is executed following step a1.

In step a13, if setting the group code is selected, the third counter 105 provided in the RAM 83 and counting the number of digits of the group code is cleared (
step a1c), the selected group code is the group code (A
> is detected (step a15). When it is detected in step als that the group code (A>) is selected, the input code is loaded into the first group code storage area 109 provided in the RAM 83 (step aS6), and the third counter 105 is” + 1
” (step a17), and the set group code (A)
is displayed on the data display 2 via the data display selection means 1 (step a18). Following step ate, steps atS to aIg are repeated until the count value of the 30th counter 105 reaches the number of digits of the group code, and the third
No.9105(7)it□SW:lt'(7)□
,. ``i'' (step a19), step a13 is then executed. Therefore, the group code (A) set in the first group code storage area 109 is stored.

When the group code selected in step a15 is not group code (A), it is group code (B), and in this case, following the Stellar a plate 5, step al6''-
Steps 820 to a23 similar to 'al'J are executed. As a result, the group code (B) set to 0 is stored in the second group code storage area provided in RAMBa.

In step a13, if it is not selected to set a group code, it is detected whether the group code (A>) has been selected by the group code selection means 5 to be used for standby (step a24). ).When the group code (A) is selected by the group code selection means 5, it is detected whether the group code (A) is stored in the first group code storage area 109 (step a25).

In step a25, the first group code storage area 10
When group code (A) is stored in 9, RAM83
Group code (A) selection permission storage area with set number set in
A flag is set at 6 (step a2S), and the set group code (A>) is displayed on the data display 2 along with a specific display such as a decimal point (step a22).

Next, it is detected whether the group code (B) is selected for use by the group code selection means 5 (test tube a28).

If the group code (A) is not selected in step a24, or if the group code (A) is not set in step a2s, step a24. Step 828 is executed following a2s.

When the group code (B) is selected in step 82B, the group code (B) is the second
It is detected whether the code is stored in the group code storage area 0 (step a29).

In step 829, the second group code storage area, 0
When the group code (B) is stored in the group code (B), a flag is set in the group code (B) selection permission storage area 7 provided in the RAM 83 (step a3), and a specific display is displayed in the data display 2. For example, the set group code (B) is displayed together with a decimal point (step a).
31). Also, it is possible to have both group codes (A> and (B) selected) from step 824 to
It will be clear from the a30.

Following step a31, a calling routine is executed.

Further, when the group code (B) is not selected in step a2B, the group code (B) is selected in step 829.
If not set, the calling routine is executed following steps 82B and 82B.

As is clear from the above, the call sign code and group codes (A) and (B) can be set. Also group hood (A)
, (B) are set and stored, preferably at step a24. If it is not selected in a2B, the carrier is not used for any purpose.

Next, the calling routine will be explained with reference to FIG.

In the calling routine, it is detected whether the system operating state setting means 8 is set, which specifies whether the communication device is automatically connected to the other party's communication device (step b1).
). In step b1, system operating state setting means;
If 8 is not set, the calling routine is skipped and the transmitting/receiving routine described later is executed. When the system operating state setting means 8 is set in step b1, it is detected whether the call setting means 9 is set following step b1 (step b2).

If the call setting means 9 is not set in step b2, the call routine is skipped and the transmission/reception routine is executed. When the call setting means 9 is set in step b2, it is detected whether a call sign is set following step b2 (step b3).

Check whether a call sign is set or not.
This is detected based on whether a flag is set in the if code setting state storage area 108. If the call sign is not set in step b3, the calling routine is skipped and the transmitting/receiving routine is executed.

Therefore, if a call sign is not set, the call will not be made and the call will not be linked to the other party.

When the call sign is set in step b3, following step b3, the mute means 120 is set to an operating state, that is, a mute-on state (step tl). Since muting is applied in step b4, the receiver is in a receiving state while searching for a free line, but the audio is muted. Following step b3, it is detected whether the line is connected (step bs)
.

Detection of whether or not a line is connected is performed by checking whether a flag is set in a line connection storage area 121 provided in the RAM 83. When the line is connected in step b5, the state of re-calling, which will be described later, is entered, and this means that the calling routine is repeated at least once.
There may be cases where the condition is reached by repeating the rotation.

When the line is not connected in step b5, the frequency data stored in the frequency data storage area 122 provided in the RAM 83 is stored in the RAM 83.
The start channel data storage area (
(hereinafter referred to as S channel data storage area) 123 (step bs). Note that here the frequency γ
- In the data storage area 122, before step b6,
Frequency data negotiated with the communicating party is set by a frequency data setting means 124 consisting of a rotary encoder or the like, and this setting data is stored in the frequency data storage area 122.

Continuing from step b6, the standby state is prohibited (step b7). The standby state is prohibited by setting Gj in the RAM 83, and the holding state is performed by resetting the flag in the state storage area 125. Continuing to step b7, the empty channel search indicator 126 is lit to display that the empty channel search is in progress (step b7).
). In addition to the light display, the empty channel may be displayed by sound (for example, a beep sound).

Further, a priority selection state setting means 12 that preferentially selects frequency data, for example, f+, f2, which are preset separately in an f1 data storage area 127 and an f2 data storage area 128 provided in the RAM 83, as a communication channel.
It is detected whether 9 is set (step bs).

When the priority selection state is set in step bB, the frequency data 5L is stored in the frequency data storage area 12.
2 (step b1o) and the first timer 13
0 timing is started (step bxx). Here, the output frequency of the frequency synthesizer 5 is set by the frequency data stored in the frequency data storage area 122. Therefore, the receiving frequency (when receiving) and the transmitting frequency (when transmitting) are set. Following step bll, the empty channel detecting means 132 comprising the comparator 39 detects whether the received signal of the frequency corresponding to the f1 frequency data loaded in the frequency data storage area 122 is below a predetermined level (step b12).
), the first condition is that the received signal level is below a predetermined level.
It is detected whether the timer 130 continues for the set time (step b13). In step b13, if the received signal level in step b12 continues to be below the predetermined level for the set time of the first timer 30, it is determined that the frequency corresponding to the 51 frequency data is an idle line, and the step described below is performed. Execute b27.

Further, if the received signal level exceeds the predetermined level in step b12, or if the received signal level does not remain below the predetermined level in step b13 for the set time of the first timer 30, subsequent to step b12, the frequency data is f2 is frequency data storage area 12
2 (step b1+), and the first timer 3
0 timing starts (step b), Stella
(Following steps b and i, the frequency data storage area 12
It is detected whether the received signal of the frequency corresponding to the f2 frequency data loaded in the f2 frequency data loaded in the first timer 130 is below a predetermined level (step BSS). It is determined whether the process continues (step b17). Step b17
If the received signal level in step b16 continues to be below the predetermined level for the set time of the first timer, it is determined that the frequency corresponding to the f2 frequency data is an idle line, and Stellar b27, which will be described later, is executed. .

Further, if the received signal level exceeds the predetermined level in step b16, or if the received signal level does not continue to be below the predetermined level in step b17 for the time set by the first timer 130, random frequency generation is performed in step b16. The frequency data generated by the means 133 is loaded into the frequency data storage area 122 (step bte), and then the frequency data stored in the frequency data storage area 122 is increased (step b1e).

In step b9, the priority selection state setter stage 12'9
is not set, step b.

Then step b18 is executed. In this case, the frequency data that should be prioritized is not selected.

Next to step bi, frequency data set in advance in the f3 data storage area (not shown) and the f4 data storage area (not shown) provided in the RAM 83, for example, (3, 54) are selected as the call channel. It is detected whether the selection/exclusion state setting means 134 has been set to exclude (step b2o).If the selection/exclusion state setting means 134 has been set in step b20, the frequency data stored in the frequency data storage area 122 is The frequency data comparison means 138 detects whether the frequency data matches the frequency data f3 (step b2).In step b2, the frequency data storage area 122
If the frequency data stored in is not the frequency data f3, then it is similarly detected whether it matches the frequency data f4 (step b22). Step b22
In step b22, if the frequency data stored in the frequency data storage area 122 is not the frequency data f4, the frequency corresponding to the frequency data stored in the frequency data storage area 122 is stored in the RAM 8.
Frequency data storage area 1 within the setting range provided in 3
It is detected whether the frequency is within the amateur band stored in 35 (step b23). Step b21
When step b23 is executed via steps b22 to b22, the frequency data stored in the frequency data storage area 122 in step b19 does not correspond to the frequency to be selectively excluded.

If the selection/exclusion state setting means 134 is not set in step b20, step b23 is executed following step b2. In this case, it is not determined whether the frequency data should be selectively excluded.

In step b23, when the frequency corresponding to the frequency data stored in the frequency data storage area 122 is within the amateur band, the first timer 30 starts timing (step b24).
), it is then detected whether the received signal level is below a predetermined level (step b25), and it is detected whether the received signal level has been below the predetermined level for the set time of the first timer 30 (step b26). ). step b2
When the received signal level continues to be below a predetermined level for the set time of the first timer 30 in step 6, it is determined that the frequency corresponding to the frequency data stored in the frequency data storage area 122 is an idle line in step bill. become. Further, following step b26, the frequency data stored in the frequency data storage area 122 is loaded into the empty channel data storage area 136 provided in the RAM 83 (step b27). Following step b27, the S channel data storage area 123
The frequency data stored in is loaded into the frequency data storage area 122 (step b28).

Here, when step b28 is executed through step b13 or step b17, it is the frequency data f1 or f2 that is stored in the empty channel data storage area 136, and step b26 is executed through step b20 and b27. In this case, the frequency data stored in the empty channel data storage area 136 is never the frequency data f3° f4. Further, when step b2 is executed through step bs, the frequency data stored in the S channel data storage area 123 is loaded into the frequency data storage area 122 again in step b26 with the line connection being established. This means a re-call.

Step t)2, the frequency data storage area 12
It is detected whether the received signal level of the frequency corresponding to the frequency data loaded into
2), if it exceeds a predetermined level, it is detected whether the PTT switch 14 is in the on state (step b3+1
). In step b3, when the PTT switch 14 is in the on state, and in step b29, when the received signal level is below a predetermined level, it is assumed that the search for an empty line has ended, and the empty channel search indicator 126 is turned off (step b31). ). Here, when step b31 is executed via step b3, the received signal level is equal to or higher than the predetermined value, but the call is forcibly made.

The reason why it is detected in step b2B whether the received signal level is below a predetermined level is to determine whether the starting channel is an idle line at this point.

Steps b21, b22. When the frequency data stored in the frequency data storage area 122 matches the frequency data f3 in b23, the frequency data f4
If the signal corresponds to a frequency outside the amateur band, and the received signal level exceeds the predetermined level in step b2s, step b
21゜b22, b23, b2 S followed by PT
It is detected whether the T switch 14 is in the ON state (step b
32) If the PTT switch 14 is not on, it is detected whether the set switch 139 is on (step b33). When the reset switch 139 is in the OFF state in step b33, step b19 is executed subsequent to step b33.

When the PTT switch 14 is in the ON state of 1 in step b32, the reset switch 1 is turned on in step b33.
39 is in the ON state, this means that the call is to be stopped, and step b32. Following b33, the frequency data stored in the S channel data storage area 123 is loaded into the frequency data storage area 122 (step b34), and step b51, which will be described later, is executed. In step b3o, the PTT switch 14
If the reset switch 139 is not in the on state, then in step b30, it is detected whether the reset switch 139 is in the on state (step b30).
35), when the reset switch J139 is not in the on state, step b35 is followed by step b2.
9 will be implemented. When the reset switch 139 is in the on state in step b35, this means that there is an instruction to stop the call, and step bs1, which will be described later, is executed after step b3s.

Following step b31, the frequency data stored in the empty channel data storage area 136 is loaded into the output horn data encoding means 141 (step Els),
Next, the group code (A) selected by the code selection means 101 is loaded into the output data encoding means 141 (step b37), and furthermore, the call sign data stored in the call sign code storage area 107 is loaded into the output data encoding means 141. (step b38). Next, output data encoding means 141
．． The data loaded in is encoded into the ilf Hagelberger code (step b39). Therefore, in step b37, the call sign code, group code (15J""tft>*JLtmWt*-F
'-9ffix>v-1'g.

It will be.

Following step b3g, the transmitting section 2 is set to a data transmitting state, that is, the output of the output encoding means 141 is converted by the parallel/serial converting means 40 and the output is led to the transmitting section (step b60), and the communication device switches to transmit/receive. Means 6
is set to a transmission state (step bat), and then the synchronization data generated by the synchronization data generator 144 is transmitted (step b42). Following step b42, the output data encoded in step b39 is subsequently transmitted (step b43). Therefore, by executing step b43, the frequency corresponding to the S channel frequency data is modulated with the data including the empty channel frequency data, and a so-called call is transmitted.

Following step b43, the transmission state is canceled and the transmission/reception switching means 6 is returned to the reception state (step b++), and furthermore, the data transmission state is canceled (step b45), and the data is stored in the empty channel data storage area 136. The current frequency data is loaded into the frequency data storage area 122 (step b46). Therefore, here, the communication device is set to the reception frequency of the searched empty channel, and is set to receive transmissions from the other party. Following step b46, the frequency corresponding to the frequency data stored in the empty channel data storage area 136 is displayed on the data display 2 (step b47).

Following step b47, a flag is set on the line connection indicator rear 121 (step b48).

In step b4B, it is assumed that the transmitting side can unilaterally establish a line connection with the receiving side.

Following step t)is, the line connection indicator 146 is lit (step, b49). Following step b49, the third timer 147 starts measuring time (step b49).
so). The set time of the third timer 147 is set to a time at which it is assumed that no line connection has been made if there is no input from the other party within this set time.

Following step bsO, reverse state setting means 148
A flag in the reverse state storage area 149 provided in the RAM 83 is reset to store the output state of the reverse state (step b51). The reverse state storage area 149 determines whether the frequency data stored in the frequency data storage area 122 is frequency' data corresponding to an empty channel or S
This indicates whether the frequency data corresponds to the channel.

After step bsl, the standby state storage area 125
flag is set, and the standby state is disabled (
Step bS2), then code squelch setting means 15
It is detected whether the code squelch is set to 0 (step b53). If the code squelch is not set in step b53, step b
53, the muting by the muting means 120 is canceled (step bs+), and the transmission/reception routine is executed. In this state, the frequency corresponding to the empty channel frequency data can be received. When the code squelch and sync settings have been made in step b53, the code squelch indicator 151 is lit (step b56) and the transmission/reception routine is executed. In this state, reception cannot be performed because the muted state is maintained.

Further, when step bst is executed subsequent to step b34 and step b35, steps b26 to bst
+1, Steps b, , 1 to b5'o are skipped, which shows the case where the search for an empty channel is forcibly canceled and the call is forcibly stopped.

Next, the transmission/reception routine will be explained with reference to FIG.

When the transmission/reception routine is entered, it is detected whether the PTT switch 14 is on (step CI). In step C1, P
When the TT switch 14 is in the on state, it is detected whether the code squelch is set (step C2),
If the code squelch has been set in step C2, the code squelch setting is canceled (step C3), and then the code squelch indicator 151 is turned off.
)-lit (step C4), muting means 12
After the muting due to 0 is canceled (step Cs), the transmission/reception routine is ended and the process returns to the start.

When steps 01 to C5 are executed, reception is enabled by turning off the PTT switch 14.

When the code squelch is not set in step C2, it is detected whether the system operating state setting means 8 is set in the same manner as step b1 following step C2 (step C6).

If the system operating state setting means 8 is not set in step C6, it is set to the transmitting state (step C7), and then it is detected whether the PTT switch 14 is on (step Ca). In step C8, P
When the TT switch 14 is in the on state, step C7 is executed. Therefore, when the PTT switch 14 is in the on state in step C8, the PTT switch 14 is in the on state in step C8.
Transmission continues until the T-switch 14 is turned off. In this case, the transmission is not under system operating conditions;
This is a transmission using a conventional amateur radio communication device.

When the PTT switch 14 is turned off in step C8, the transmitting state is canceled (step C9), the transmitting and receiving routine is completed, and the routine is returned to the start.

When the system operating state setting means 8 is set in step C6, the RAM
Specific frequency data storage area 152 provided within 38
Specific frequency data that is set in advance and corresponds to a frequency outside the amateur band is loaded into the output data encoding means 141 in place of the frequency data stored in the empty channel data storage area 136 (step C1).
o), then the group code (A) is loaded into the output data encoding means 141 (step C), and the call sign data stored in the call sign code storage area 107 is loaded into the output data encoding means 141 (step C). Cl2), the output data is encoded by the output data encoding means 141 (step C13).

Following step C13, the transmitter 2 is set to a data transmitting state (step C14), the communication device is set to a transmitting state (step Cr5), synchronized data is transmitted (step 016), and then encoded in step CI3. output data is transmitted (step C17)
. Upon completion of this transmission, the data transmission state is released (step 018). In steps Cl1l to C17, the frequency data preset in the specific frequency data storage area 152 is encoded in place of the empty channel data, and is transmitted at the frequency corresponding to the frequency data stored in the frequency data storage area. It turns out.

When the other party receives this transmission, the hood squelch is canceled as will be described later.

Transmission becomes possible upon completion of step CtS. Following step CtS, the second timer 153 starts counting time (step C!9).

Next to the step C1fl, the PTT switch 14 is set to OJ.
It is detected that the state is off (step C2a), and P
If the TT switch 14 is not in the off state, wait for the set time of the second timer 153 to elapse (step C21).
). When the set time of the second timer 153 has elapsed in step C21, the data transmission state is set as in step c14 (step C22), synchronization data is transmitted (step 023), and the specific channel data is transmitted in step b36. The output data obtained by encoding the frequency data stored in the data storage area 152 as empty channel data is transmitted (step C24), the data transmission state is canceled (step C25), and the third timer 147 starts timing ( Step 026), then step 01B is executed again. Therefore, C19~c
2r+ causes the transmission to be temporarily interrupted every time the set period of the second timer 153 has elapsed, and the transmission of the output data is repeated. Further, while the transmission is being performed, the third timer 147 is reset in step 02B, and the timing of the third timer 147 is repeated anew. When the PTT switch 14 is in the OFF state in step C21, it means that there is no intention to communicate, and following step C20, output data is transmitted in the same manner as steps 022 to 025 (steps 027 to C31), and then transmitted. After the state is released (step C31) and the third timer 147 starts counting (step C32), the transmission/reception routine is ended and the process returns to the start again.

Steps C2 to C32 are the transmission routine.

When the PTT switch 14 is in the off state in step C1, the line connection storage area 12
It is detected whether the flag is set to 1 (step C33). When the flag is set in step C39, that is, when the line is connected, it is detected in step C33 whether the reset switch 139 is turned on (step C34).

If the reset switch 139 is off, that is, not reset in step C34, it is detected whether there is input data following step 034 (step C3).
5). As described above, in this embodiment, the device is normally in the receiving state. When output data from the other party is received in step C3S, the input data is converted into parallel data by the serial/parallel conversion means 42 and decoded by the input card decoding means 155 (step C36), It is detected whether the group code ('A) is selected (step C37).
, when the group code (A) is selected, the code comparing means 156 detects whether the group code in the input data matches the group code (A) (step C38).

Unless the group code (A) is selected in step C37, if the group code in the input data does not match the group code (A) in step C3, the group code (A) is selected in step CI7.03. It is detected whether B) is selected (step Cag),
When the group code (B) is selected, it is detected whether the group code in the input code matches the group code (B) (step C4@). If the group code (B) is not selected in step 03g, step C4
When the group code in the input data does not match the group code (B) in , it is detected whether the set time of the third timer 147 has elapsed following steps 03B and 04 (step C41). Also, if there is no input data in step C35, step 0 is followed by step C35.
41 is executed. As is clear from steps 037 to C4[1, standby is performed using group codes (A) and (B).

Therefore, when a reset instruction is not given and there is no input data, or even if there is input data, the group code in the input data does not match the group code in the selected state, the set time of the third timer 147 is set. If the time elapses, muting is performed by the muting means 120 (step C42). Following step C42, S-chan 3
The frequency data stored in the channel data storage area 123 is loaded into the frequency data storage area 122, and the communication device starts from the receiving state of the empty channel frequency.
A reception state is established for the frequency corresponding to the data stored in the S channel data storage area 123 (the S channel data discussed with the other party in step b6) (step C43). Next, it is detected whether the code squelch is set (step C44), and if the code squelch is not set, muting by the muting means 120 is canceled (step C45), and the flag in the line connection storage area 121 is reset. (Step C
46). If the code squelch is set in step C44, step C4 is followed by step C44.
6 is executed. Following step C46, the line connection indicator 146 is turned off (step C47), the transmission/reception routine ends, and the process returns to the start.

Also, in step 034'', the reset switch 139
When is in the on state, that is, when a reset instruction has been issued, step 04G is executed following step 034. When the flag in the line connection storage area 121 is reset in step C33, it is detected whether the reverse state setting means 148 is set (step C76). In step 03B, the group code in the input data is changed to the group code (A
), and if the group code in the input data matches the group code (B) in step C40, step CE18. Following C40, the third timer 147 starts counting (step C75), and then step C76
Execute. The third timer is reset by the start of time measurement in step C75, and time measurement is started again from the beginning.

When the reverse state setting means 148 is set in step 076, the state of the flag in the reverse state storage area 149 is detected (step 04B). When the flag in the reverse state storage area 149 is set, the frequency data stored in the empty channel data storage area 136 is loaded into the frequency data storage area 122 (step 048), and the flag in the reverse state storage area 136 is set. When it is reset, the frequency data stored in the S channel data storage area 123 is loaded into the frequency data storage area 122 (
Step Csa'), Step 049. Following C5O, the state of the flag in the reverse state storage area 136 is inverted (step Cst'). In step C48, when the flag in the reverse state storage area is reset, empty channel data is stored in the frequency data storage area 122, and when the flag is set, S channel data is stored in the frequency data storage area 122. By executing steps C4, .05, the storage contents of the frequency data storage area 122 are replaced with empty channel data and S channel data.

Therefore, if the other party does not appear even though the line connection should have been established from the perspective of the transmitting side, it is possible to detect whether the frequency corresponding to the S channel data has returned again. Further, in step C51, the contents of the reverse state storage area 1 149 are set to a state corresponding to the storage contents of the frequency data storage area 122 (empty channel data or S channel data).

Following step CSt, it is detected whether there is input data (step C52), and if there is no input data, the transmission/reception routine is ended and the process returns to the start. Step 07
If the reverse state setting means 148 is not set in step C6, step C52 is executed following step C76.

If there is input data in step C52, the input data is decoded (step C53), and then it is detected whether the group code (A>) is selected (step C54), and the group code (A) is selected. If the group code in the input data matches the group code (A), it is detected (step C55).Step C
In 55, the group code in the input data is group code (A).
When it matches, the data display means, group code 3 to 2.
- mode (A) is displayed (step Csa>, and then it is detected whether the system is set to the operating state (
Step C5o).

When the group code (A) is not selected in step C54, if the group code in the input data does not match the group code (A>) in step CSS, the group code (B) is selected in step C54,055. It is detected whether the group code (B) is selected (step Cs6), and if the group code (B) is selected, it is detected whether the group code in the input data matches the group code (B) (step Cs6).
Step C57). If the group code in the manual data matches the group code (B) in step C57, then in step CS7, the data display 2 displays the group code (B).
is displayed (step C5a), and step C56,05
J step C5 in which step CSO is executed following 7.
6.

When the group two lower (B) is not selected at C57, and the group code in the input data does not match the group code (B), the transmitting/receiving routine is terminated and restarted at steps C56 and C57. will be returned to.

When the system is set in the operating state in step C60, it is detected whether the frequency corresponding to the empty channel data in the input data is within the amateur band (step 061).
. In step C61, if the frequency corresponding to the empty channel data in the input data is not a frequency within the amateur band, the transmission/reception routine is ended in step C61, and the process returns to the start.

In step C61, if the frequency corresponding to the empty channel data in the input data is a frequency within the amateur band, the empty channel data in the input data is RA
f5 is provided in M83 and stores f5 frequency data corresponding to a frequency that is not to be drawn into the receiving state.
It is detected whether the frequency data matches the frequency data in the data storage area (not shown) (step C62), and if they do not match, the state of the flag in the line connection storage area is detected (step C63), and if they match, the transmission/reception routine is executed. End: Return to the start again.

When the flag of the line connection storage area 121 is reset in step 063, that is, when no line connection is made, the frequency data of the frequency data storage area 122 is loaded into the S channel data storage area 123 (step C64), and then the input data The empty channel frequency data inside is loaded into the frequency data storage area 122 (step C65). As a result, the frequency corresponding to the empty channel data in the input data is drawn. Following step cr+s, a data display,
The call sign in the input data is displayed in step C66.

Following step 066, the reverse state storage area 14
9 is reset (step C67), then the flag in the line connection storage area 121 is set (step 06B), and the third timer 147 starts counting (step Cs5).

Further, following Step C61], it is detected whether the code squelch is set (Step C7+1>, and if the code squelch is not set, the transmission/reception routine is ended and the process returns to the start again. In Step C63, the line connection storage area 121 When the flag is set, step 070 is executed after step 06B.If the system operation state is not set at step 060, then after step C6fl, the frequency data in the input data is set to specific data. If it is specific data, step C71 is followed by step 070, and if it is not specific data, the transmission/reception routine is ended and the process returns to the start.

If the code squelch is set in step 070, the code squelch is canceled (step C
72), the code squelch indicator 151 is turned off (step C73), the muting by the muting means 120 is canceled (step C74), and then the transmission/reception routine is ended and the process returns to the start.

Therefore, code squelch is used when receiving data, when there is input data, the group code matches the transmitted group code, the system is not in an operating state, and the empty channel frequency data in the input data is specific data. , the input data is present, the group code matches the transmitted group code, the system is in operating condition, and the frequency corresponding to the empty channel frequency data in the input data is within the amateur band and is at frequency 5. When the corresponding frequency data is not present, code squelch is canceled and muting is canceled.

Note that steps C3:1 to G74 to 075 are a reception routine.

Further, in FIG. 3, 157 indicates a frequency data control means for performing frequency-related control, 158 indicates a calling operation control means for controlling the calling operation routine, and 159 indicates a frequency data control means for controlling the calling operation routine. Indicates a data output control means for controlling output data encoding, etc.
160 is the decoding of input data when data is input @ @ ft1ll lt 6 T' 9 A
'jE i'l III f” m 'fj m I
−”°゛6° 1j In one embodiment of the present invention,
In the transmission/reception routine, when the PTT switch 14 is turned on, if the code squelch is set (step C2), step C2 is followed by step C3.
~C5 is executed, and the code squelch is canceled.

(Effects of the Invention) As explained above, according to the present invention, an empty call channel can be automatically set as a call channel. Further, the code squelch is activated only during reception, and the squelch is not canceled unless the group codes match. Furthermore, P.T.
By suppressing the T-switch, the food squelch is canceled and reception becomes possible regardless of the group code before the transmission operation.

[Brief explanation of drawings]

FIG. 1 is a functional block diagram showing the configuration of the present invention. FIG. 2 is a block diagram showing one embodiment of the present invention. FIG. 3 is a functional block diagram corresponding to the explanation of the block diagram shown in FIG. 2. 4 to 6 are flowcharts for explaining the operation of one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Communication device main body, 2... Transmission part, 3... Receiving part, 4... Antenna switching part, 5... Frequency synthesizer, 6... Transmission/reception switching means, 7... Microphone ,
9... Output data generation means, 10... Modulation signal switching means, 13... Speaker, 16... Calling instruction means,
17... Empty air search means, 20 and 22...
- Storage means, 21 and 25...Selection means, 23...
-Group code storage means, 24...Group code comparison means, 2
6... Code squelch means.

Claims (1)

[Claims] In an amateur radio communication device comprising a frequency synthesizer that acts as a carrier wave oscillator when transmitting and a local oscillator when receiving, and a push-to-talk switch, a first transmitter that stores oscillation frequency data when making a call; a storage means, a second storage means for storing frequency data, a group code storage means for storing a group code, and an output corresponding to the stored group code of the group code storage means and the stored frequency data of the second storage means. output data generation means for generating data; group code comparison means for detecting a match between the group code stored in the group code storage means and the group code in the received input data; and call instruction means for issuing a call instruction; an empty channel search means for searching for an empty communication channel in response to the output of the call instruction means; and an empty communication channel to which the frequency data output from the empty channel search means and the frequency data in the input data are supplied and the empty channel search means a first selection means which selects the former frequency data based on the detection output and the latter frequency data based on the detection output of the group code comparison means and transfers and stores them in the second storage means; and an empty channel search means for detecting an empty call channel. A second storage device that selects the frequency data stored in the first storage means for a predetermined period from the time when the output is generated, and after the elapse of the predetermined period, selects the frequency data stored in the second storage means and supplies the selected frequency data to the frequency synthesizer as output frequency setting data. a selection means, a transmission/reception switching means for switching the communication device from the receiving side to the transmitting side during the predetermined period or while the output of the push-to-talk switch is generated from the generation of the empty communication channel detection output of the empty channel searching means; and the empty channel searching means. a modulation signal switching means for switching the modulation signal from the microphone output side to the output data side of the output data generation means for the predetermined period from the generation of the idle talk channel detection output; and a code for canceling the squelch by the output of the push-to-talk switch. A communication device for amateur radio, characterized in that it is equipped with a squelch means.