JPS619029A - 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 respectivly an oscillation frequency data at call and a frequency data, a group code storage means and an output data generating means and retrieving an idle channel by an idle channel retrieval means. CONSTITUTION:When a call is commanded by a call command means 16, an idle channel is retrieved by an idle channel retrieval means 17 and a retrieval display means 18 during retrieval of an idle channel is, for example, lighted. When an idle channel is retrieved by the idle channel retrieval means 17, the frequency data of the idle channel is stored in a storage means 20 via a selection means 25. On the other hand, a group code stored in a group code storage means 23, and a storage frequency data of the storage means 20 transferred to the storage means 20 are entried in an output data generating means 9 and generated into an output data after prescribed data processing.

Description

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

(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 of the present invention is to provide an amateur wireless communication device that can automatically set an empty channel as a communication channel.

(Configuration of the Invention) FIG. 1 is a functional block diagram for implementing 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 1o that switches between the output of the audio signal amplifier 8 and the output of an output data generation means 9, which will be described later, and supplies it as a modulated signal to the transmitter 2. , an audio signal amplifier 11 that receives and amplifies the audio signal from the receiver 3.
The transmitter 2 uses the output of the modulation signal switching means 10 as a modulation signal to modulate the oscillation output of the frequency synthesizer 5 and transmits the modulated signal, and when receiving, the output of the frequency synthesizer 5 is used as a local oscillation output. It is configured to convert the received signal frequency to an intermediate frequency and receive it.

Note that 12 represents an antenna, and 13 represents a speaker.

Mancrophone 7 has push to talk.
to talk, Pee, □,) Yuyf
f14 is attached, and is configured so that 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 device 16, an empty channel search device 17 that searches for an empty channel in response to the output of the call instruction device 16, and an empty channel search device 174 #searching for an empty channel. The present invention is equipped with a search display means 18 for displaying search status, 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 the empty channel searching means 17 detects an empty channel, the frequency data of the empty channel found by the empty channel searching means 17 is output from the empty channel searching means 17. Switching the transmission/reception switching means 6 from the reception side to the transmission side and the modulation signal switching means 10 from the audio signal amplifier 8 side to the output side of the output data generation means 9 for a predetermined period of time to the frequency data selection side of the empty channel, When this predetermined period has elapsed, the selection means 21 is configured to supply frequency data stored in the storage means 20 to the frequency synthesizer 5 in place of the frequency data stored in the storage means 22 described later. It is. The output of the selection means 25 is also supplied to the storage means 20.

The automatic channel selection device 15 further includes a group code storage means 23, an output data generation means 9 for generating corresponding output data by storing the stored frequency data of the storage means 20 and the stored group code of the group code storage means 23; A storage means 22 for storing frequency data corresponding to the oscillation frequency at the time of calling, and a group code for detecting a match between the group code in the input data received by the receiving section 3 and the group code stored in the group code storage means 23. Comparison means 24 is provided, and the frequency data in the input data is supplied to selection means 25. Based on the coincidence detection output of the group code comparison means 24, the selection means 25 selects the frequency data in the input data and stores it in the storage means. 20.

(Operation of the Invention) In the amateur radio communication device of the present invention configured as described above, frequency data corresponding to the oscillation frequency at the end of the call, which has been discussed in advance with the communication partner, is stored in the storage means 22, and the group code is stored. 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.

When a call instruction is given by the call instruction means 16, the call is made ξ
After receiving the instruction signal, the empty channel search means 17 searches for an empty channel. While the empty channel searching means 17 is searching for an empty channel, the searching display means 18 lights up, for example. This lighting indicates that an empty channel is being searched. When an empty channel is searched for by the empty channel search means 17, the frequency data of the empty channel is 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 2o 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 generates an output at least until the end of transmitting the output data to the modulation signal switching means 10 and the transmission/reception switching means 6. 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
Received 6ka 1,3keke. t: We, 46 degrees, af
=ff121' selects the frequency data stored in the storage means 22 and applies it to the frequency 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 becomes ready to receive radio waves of the frequency of the empty channel.

In this case, at -3, the display on the searching display means 18 indicates that the empty channel searching means 17 is searching for an empty channel.

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

The group code in the received input data is determined by the group code comparison means 2.
At step 4, the stored group code is compared with the stored group code stored in the group 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 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 transmission/reception switching means 6 is switched to the transmission side, transmission is performed, and the PTT switch 14 is pressed.
By ceasing to press the TT 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 transmitter 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 modulator 31 modulates the oscillation output of the frequency synthesizer '5 by using the output of the modulated signal switching means 4 and 10 as a modulation signal, and the output of the modulator 31. It includes a high frequency amplifier 32 that amplifies the output of the 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. Send.

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 1f5 with the output of the high frequency amplifier 34 and converts it into an intermediate frequency signal. mixer 35, mixer 3
5, an intermediate frequency amplifier 36 that amplifies the intermediate frequency signal, and a demodulator 3 that demodulates the output of the intermediate frequency amplifier 36.
7. Mute means 12 for muting the output of the demodulator 37
0, an audio signal amplifier 1 that amplifies the audio signal output through the mute means 120 and drives the Subi 7J 13;
1. A comparator 39 is provided which detects whether the channel is empty by receiving the demodulator horn and detecting whether the level is below a predetermined level, and the output of the demodulator 37 is supplied to the modem 41. 1 On the other hand, 80 is a microcomputer, basically CPU81
, ROM82, RAM83, input port 84, output port 85, and 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 8 setting instruction, and 102 is a numeric keypad switch, which is a code for setting a call sign and a setting code. A setting means 115 includes a switch, and a group code selection means 118 selects a setting code for standby use. 118 includes a switch, and specifies whether to automatically connect the communication device to a corresponding communication device. 119 is a call setting means consisting of a switch for instructing a call, 124 is a frequency data setting means for setting frequency data using a rotary encoder and an up/down counter, and the output is as described in 1 below. is set in the frequency data storage area 122.

Reference numeral 161 denotes a frequency data selection setting means for instructing what the set frequency 4 wave number 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 is a priority selection state setting means for specifying that predetermined frequency data should be selected preferentially as an empty channel when searching for an empty channel; 129 is a switch, and is a priority selection state setting means. Contrary to 129, a selection/exclusion state irI setting means specifies that predetermined frequency data should not be selected as an empty channel when searching for an empty channel, 139 is a reset 1 to switch, and 148 is a start channel frequency and an empty channel frequency. 150 is a hood squelch setting means that instructs to automatically cancel the squelch by using the group code as a squelch code.

A program for controlling the CI) U 81 is written in the ROM 82, and the input port 84 receives the output of the code selection means 101, the output of the code setting means 102, the output of the group code selection means 115, and the system operating state setting means. 118, output of call setting means 119, output of frequency data setting means 124, frequency data selection setting means 1
61, the output of the light penetration selection state setting means 129, the output of the selection exclusion state setting means 134, and the reset switch 13.
9, the output of the reverse setting means 148, the output of the code squelch setting means 150, the output of the PTT switch 14, and the modem 41 converted by the serial/parallel converter 42.
The output of the comparator 39 is supplied as demodulated output data.

The CPU 81 reads the signals and data supplied to the input board 84 according to the program stored in the ROM 82 when necessary, stores them in the RAM 83, and performs calculations,
It performs comparison and data processing, and also determines whether the input state has continued for the time set by the timer 86, and outputs the output port 85 according to the calculation, comparison, processing, and determination results.
via the data display 112 and call sign display 11
4. Display signals to the empty channel search display 126, line connection display 146, and food squelch display 151, frequency data (dividing ratio) to the frequency synthesizer 5, switching signal to the transmission/reception switching means 6, and modulation signal. A switching signal is sent to the switching means 10 and the parallel/serial converter 4
0 to the modem 41, muting means 1
The mute control signals 20 are output with or without latching as necessary.

In this embodiment configured as described above, for example, 144
MH2 band (144,520Mtlz ~14.5.73
0M1-1z), and set the channel to 20MH.
Let it be z step. 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.

The operation and operation of one embodiment of the present invention will be explained in FIG. 4 together with FIG. 3.
This will be explained according to the flowcharts shown in FIGS.

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, the code selection means 101 detects whether a call sign code has been selected (step aS). 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. It is possible to configure it. Also, setting codes A and B
is referred to as a setting code in order to function as a so-called group code and also as a code squelch code, but will be referred to 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, when the code setting means 102 is pressed four times, one character of the ASCII code is specified, and when the code setting means 102 is pressed the first two times, the code setting means 102 is pressed four times.
The value indicated by 2 is modified to give the top 3 of the 7 unit ASCII code.
The hexadecimal number corresponding to the bit is added to the value indicated by the code setting means 102 that was pressed the next two times to obtain the hexadecimal number corresponding to the lower four pits of the 7-unit ASCII code.

When setting a call sign code is selected in the switch a1, a second count area (hereinafter referred to as a counter) 104 installed in the RAM 83 is used to set the number of digits of the call sign. The first counter 03 provided in the RAM 83 is cleared in order to count the number of presses of the code setting means 102 suppressed in step a2 to correspond to one character of the ASCII code (step a2). 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 set to "-)-1" (step aS)
. Steps a4 to a5 are repeated a number of times corresponding to one ASCII code character (step aS). The input code is then converted into an ASCII code (step a7), and the converted ASCII code is stored in the call sign code storage area 107 provided in the RAM 83, and the stored contents are transferred to the call sign display via the code calculation means 113. 11
4 (Stemp aS). Then, the second counter 104 is incremented by 1'' (step a9), and step 83
~． A9 is repeated the number of times corresponding to the digit of the call sign (Sumitsubu a1o). In step al[l the second
．． When the counted value of the counter 104 reaches a value corresponding to the number of digits of ]-Luriin, the call sign code is completely stored in the call sign code storage area 107, and the call sign code provided in the RAM 83 is stored completely.

A flag is set in the sign code setting state storage area 108 (step alr). Next, the call sign code selection of the code selection means 101 is canceled and the position where group code A 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 aX3).

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

Although the example shown in (B) is a case where two group codes 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 a13 is executed following step a1.

In step alB, if it is selected to set the group code, the third counter 105 provided in the RAM 83 and counting the number of digits below the group two is cleared (
Step a14), the selected group code is the group code (A
) is detected (step atS). When it is detected in step a15 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 at6), and the third counter 05 is ' + 1
” (step a17), and the set group code (A)
is displayed on the data display 11 via the data display selection means 111.
2 (step a1B). Following step atS, T″22 steps a!ate are repeated until the count value of the third counter 105 reaches the number of digits of the group code.
When the count value of the third f counter 05 reaches the number of digits of the group code (step a19), step a
13 is executed. Therefore, the group code (A) set in the first group code storage area 109 is stored.

If the group code selected in step ais is not group code (A), it is group code (B), and in this case step a! Following step 5, steps a16 to a19
Steps a2'11 to a2j similar to are executed. As a result, the set group code (B) is stored in the second group code storage area 110 provided in the RAM 83.

If setting the group code is not selected in step a13, it is detected whether the group code selection means 115 has selected the group code (A) to be used for carrying (step a24). . When the group code (A) is selected by the group code selection means 115, it is detected whether the group code (A) is stored in the first group code storage area 109 (step a25).

In step a2s, the first group code storage area 10
When the group code (A> is stored in 9, the RAM 83
Group code (A) selection permission storage area 11 provided within
6 is set (step a2r+), and the set group code (A) is displayed on the data display 112 along with a specific display such as a decimal point (step a27). It is detected whether the group code selection means 115 has selected the group code for use as a reserved number (test tube a28).

If the group code (A) is not selected in step a24, and if the group code (A) is not set in step a25, step a24. Step a26 is executed following a2s.

When the group code (B) is selected in step a28, the group code (B) is the second
It is detected whether the code is stored in the group code storage area 110 (step a29).

In step 82B, the second group code storage area 11
When the group code (B) is stored in 0, RAM83
Group code ([3) Selection permission storage area 1 provided in
A flag is set in 17 (step a3[l), and the set group code (B) is displayed on the data display 112 along with a specific display such as a decimal point (
Step a3t) o also n'\ code (A) and (B
) can also be left selected.

Following step ayo1, a calling routine is executed.

Further, when the group code (B) is not selected in step a28, the group code (B) is selected in step 829.
is not set, the calling routine is executed following step 82B, a21].

As is clear from the above, it is possible to set the calli-in code, group codes (A), and (B). Also, the group code (A>
, (B) are set and stored, even if step a24. If it is not selected in a2s, the standby mode is of no use.

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 118, which specifies whether to automatically connect the communication device to the other party's communication device, is set (step b).
1>. If the system operating state setting means 118 is not set in step b1, the calling routine is skipped and a transmitting/receiving routine to be described later is executed. step b1
When the system operating state setting means 118 is set in step b1, it is detected whether the call setting means 119 is set (step b2). If the call setting means 119 has not set it in step b2, the call routine is skipped and the transmission/reception routine is executed. When the call setting means 119 is set in step b2, it is detected whether a call sign is set following step b2 (step tl).

Check whether a call sign is set or not.
.

This is detected based on whether a flag is set in the mixed 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 the operating state, that is, the state of the mute means (step b+). Since muting is applied in step b4, when searching for a free line, the receiver is in a receiving state, but the audio is muted. Step b: Next to l, it is detected whether the line is connected (step bs
).

Detection of whether a line is connected or not is performed by checking whether a flag is set in the line connection storage area 121 designated in the RAM 83.

When the line is connected in step b5, the system enters a re-calling state, which will be described later, and this state may occur by performing the calling routine at least once.

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 is loaded (step BS). In addition,. Here, the frequency μ data storage area 122 stores the frequency data negotiated with the communicating party before step b6 by the frequency data setting means 1 consisting of a rotary encoder or the like.
24, and this setting data is stored in the frequency data storage area 122.

Continuing from step b6, the holding state is prohibited (step b7). The standby state is inhibited by setting the stage number in the RAM 83.The standby state is inhibited 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).

In addition, priority selection state setting means 1 for preferentially selecting frequency data, for example, f, +, and j2 as call channels, is set separately in the f1 data storage area 127 and f2 data storage area 128 provided in the RAM 83.
It is detected whether 29 is set (step bs)
. When priority selection state i is set in step b9, frequency data f1 is stored in frequency data storage area 1.
22 (step bID) and the first timer 1
30 time measurement is started (step b11). 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. After Stella and BTT, the comparator 3 determines whether the received signal of the frequency corresponding to the 11 frequency data loaded in the frequency data storage area 122 is below a predetermined level.
9 is detected by the empty channel detecting means 132 (step b12), and it is detected whether the received signal level continues to be below a predetermined level for the set time of the first timer 130 (step b13). step b1
In 3.

In step b12, if the received signal level continues to be below the predetermined level for the set time of the first timer 130, f! It is determined that the frequency corresponding to the frequency data is an idle line, and step b27, which will be described later, is executed.

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 130, then in step b12, the frequency Data f2 is frequency data storage area 1
22 (step b14), and the first timer 1
30 timing starts (step b), Stella
.

Next to the bls, the frequency data storage area 122
It is detected whether the received signal of the frequency corresponding to the f2 frequency data loaded in f is below a predetermined level (step b16), and the N received signal level continues to be below the predetermined level for the set time of the first tie 713o. It is detected whether it is the same (step b17). In step b17, if the received signal level in step b16 continues to be below the predetermined level during the setting of the ml timer, it is determined that the frequency corresponding to the f2 frequency data is an empty line, and Stellar b27, which will be described later, is Execute. Further, the first timer 1 indicates that the received signal level exceeds a predetermined level in step b16, or that the received signal level is below a predetermined level in step b17.
If it does not continue for the set time of 30, then in step b16, the frequency data generated by the random frequency generating means 133 is loaded into the one wave number data storage area 122 (step b18), and then the frequency data storage area 1
22 stored frequency data are incremented (step b
1g>.

Priority selection letter in step b9! ! When the setting means 129 is not set, step b18 is executed after step bs. In this case, the frequency data that should be prioritized is not selected.

Step BL! Following l, f3 provided in RAM83
Data storage area (not shown) and j4 data storage area (not shown) each have preset frequency data, for example, j3. It is detected whether the selection/exclusion state setting means 134 for excluding selection of f* as a communication channel is set (step b2I). step b20
When the selection/exclusion state is set in , the frequency data comparing means 138 detects whether the frequency data stored in the frequency data storage area 122 matches the frequency data f3 (step b2!).
. In step b21, the frequency data storage area 12
If the frequency data stored in 2 is not frequency data f3, then frequency data! 4 is similarly detected (step b22). step b2
If the frequency data stored in the frequency data storage area 122 is not the frequency data f4 in step b22, the frequency corresponding to the frequency data stored in the frequency data storage area 122 is stored in the RAM.
It is detected whether the frequency is within the amateur band stored in the step-range frequency data storage area 135 provided in 83 (step b23). step b2
When step b23 is executed via steps 1 to b22, the frequency data storage area 122 is
The frequency data stored in the frequency data does not correspond to the frequency to be selectively excluded.

If the selection/exclusion letter i setting means 134 is not set in step b20, step b23 is executed following step b2a. In this case, it is not determined whether the frequency data should be selectively excluded.

P When the frequency corresponding to the frequency data stored in the frequency data storage area 122 in step b23 is a frequency within the amateur band, the first timer 30 starts timing (step b24).
Then, it is detected whether the received signal level is below a predetermined level (step b2S), 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 26). . Step b26
If the received signal level continues to be below a predetermined level for the set time of the first timer 30, it is determined in step bill that the frequency corresponding to the frequency data stored in the frequency data storage area 122 is an idle line. 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 frequency data stored in the S channel data storage area 123 is loaded into the frequency data storage area 122 (step 1ib2).
B). ' Here, when step b211 is executed through step bl:l or step b17, the frequency data it is stored in the empty channel data storage area 136.
or f2, and as long as step b28 is executed via steps b20 to b27, the frequency data stored in the empty channel data storage area 136 will not be frequency data/3°f4. Further, when step b211 is executed through step b5, the frequency data stored in the S channel data storage area 123 is loaded into the frequency data storage area 122 again in step b28 with the line connection being established. , meaning a re-call.

Following step b211, frequency data storage area 12
It is detected whether the received signal level of the frequency corresponding to the frequency data loaded into
2g), if it exceeds a predetermined level, it is detected whether the PTT switch 14 is in the on state (step b+a). In step b30, when the PTT switch 14 is in the on state, and in step b211, when the received signal 8 level is below a predetermined level, it is assumed that the search for an idle line has ended;
The empty channel leader indicator 126 is turned off (step bit). Here, when step b31 is executed via step b311, the received signal level is above a predetermined value, but the call is forced to be made.

The reason why it is detected in step b29 whether the received signal level is below a predetermined level is to confirm at this point whether the start channel is an idle line.

Step b21. b22. When the frequency data stored in the frequency data storage area 122 matches the frequency data f3 in b23, the frequency data 'f
4 corresponds to a frequency outside the amateur band, and if the received signal level exceeds the predetermined level in step b2s, steps b21, b22. b23. Following b2's, it is detected whether the PTT switch 14 is on (step b32),
When the PTT switch 14 is not on, it is detected whether the set switch 139 is on (step b3).
3). In step b33, the reset switch 139
is in the off state, step b19 is executed following step b3.3.

When the PTT switch 14 is in the on state in step b32, the reset switch 13 is in the on state in step b33.
9 is in the ON state, this means that the call is to be stopped, and step b92. b3B followed by S
The frequency data stored in the channel data storage area 123 is loaded into the frequency data storage area 122 (step b3d), and step b51, which will be described later, is executed. Step b 3. If the PTi-switch 14 is not in the on state at step B30, it is detected whether the reset switch 139 is in the on state (
step b3s), reset switch, 4
139 is not in the on state, step b29 is executed following step b3s. The reset switch 139 is in the on state in step b3s when the instruction is to stop the call, and in step b35
Then, step b51, which will be described later, is executed.

Following step bjl, the frequency data stored in the empty channel data storage area 136 is loaded into the output data encoding means 141 (step b3s), and then the group code (A> selected by the code selection means 101) is output data encoded. The call sign data stored in the call sign code storage area 107 is loaded into the output data encoding means 141 (step b3B). The data is encoded into a Hagelberger code (step b39).Therefore, in step b37, the call sign code, group code a, h v q y-t''72-hmFiR*
9-9ST->D-t'a.

It will be.

Following step b3B, the transmitting section 2 is set to a data transmitting state, that is, the output obtained by converting the output of the output encoding means 141 by the parallel/serial converting means 40 is guided to the transmitting section (step t) r+o), and the communication device switches to transmit/receive. The means 6 is set to a transmitting state (step b4t), 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 b3B 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 transmitting state is canceled and the transmitting/receiving switching means 6 is returned to the receiving state (step b44).
Furthermore, after the data transmission state is released (step b45), the frequency data stored in the empty channel data storage area 136 is transferred to the frequency data storage area 122.
(step b46). Therefore, at this point, the communication device is set to the searched empty channel reception frequency, and is set to a state of waiting for transmission from the other party. Following step btts, the frequency corresponding to the frequency wave number data stored in the empty channel data storage area 136 is displayed on the data display 112 (step b47).

Following step b47, a flag is set in the line connection storage area 121 (step b48).

In step b46, it is assumed that the transmitting side can unilaterally establish a line connection with the receiving side.

Following step b411, the line connection indicator 146 is lit (step b49). Following step b49, the third timer 147 starts counting (step b49).
≦0). 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 bsa, the reverse state setting means 14
The flag in the reverse state storage area 149 provided in the RAM 83 is reset to store the output state of No. 8 (step b51). Reverse state storage area 149
is whether the frequency data stored in the frequency data storage area 122 corresponds to an empty channel or not.
This indicates whether the frequency data corresponds to the channel.

After step bst, the standby state storage area 125
flag is set, and the state of prohibition on the hold is lifted (
Step b52), then code squelch setting means 15
It is detected whether the code squelch is set by 'O' (step b53). If the code squelch is not set in step bsa, muting by the muting means 120 is canceled following step b53 (step b54), and the transmission/reception routine is executed. In this state, the frequency corresponding to the empty channel frequency data can be received. [In step b53] When the setting is set to ``multiple'', the code squelch indicator 151 is turned on in step b53 (step bss), and the transmission/reception routine is executed. In this state, reception cannot be performed because the muted state is maintained.

Also, when step b34 and step b35 are 0 and step b51 is performed incorrectly, steps b26 to b5+
This is a state in which 1s steps b31 to bs0 are skipped, and 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 entering the transmission/reception routine, it is detected whether the PTT switch 14 is on (step C1). In step C1, P
When the TT switch 14 is on, 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.
1 is lit (step C4), and the mute means 12
After the muting due to 0 is canceled (step C5), 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 hood squelch is not set in step C2, it is detected whether the system operating state setting means 118 is set in the same manner as step b1 following step C2 (step C6).

In step C6, the system operating state setting means 118
If not set, the transmitting state is set (step C7), and then it is detected whether the PTT switch 14 is on (step Co). 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 in the OFF state 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.

In step C6, the system operating state setting means 118
is set, in step C6, RA
Specific frequency data storage area 15 provided in M38
2 and corresponding 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 C
10), then the group code (A) is loaded into the output data encoding means 141 (step C1t), 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 Cl2). ) is encoded by the output data encoding means 141 (step C13).
.

Following step 013, the transmitter 2 is set to a data transmitting state (step CI, 4), the communication machine is set to a transmitting state (step Cs5), and synchronized data is transmitted (step C15). The encoded output data is transmitted (step C17).
). Upon completion of this transmission, the data transmission state is released (step 018). In steps CtO to C17, the frequency data previously set 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 code squelch is canceled as described above.

Transmission becomes possible upon completion of step C18. Following step Cta, the second timer 153 starts counting time (step 019).

Following step cis, PTT switch 14 is o,
It is detected whether the state is off (step C211),
When the PTT switch 14 is not in the off state, the second. Wait for the set time of timer 153 to elapse (timer 1
When the set time of 53 has elapsed, the data transmission state is set (step C22) in the same way as step C14, synchronous data is transmitted (step C23), and step b36
The frequency data stored in the specific channel data storage area 152 in is encoded as empty channel data.

The output data is transmitted (step C24), the data transmission state is canceled (step C25), the third timer 147 starts counting (step C2r+), and then step 019 is executed again. Therefore C11l
.about.026, the transmission is temporarily interrupted every time the second timer 153 setting mawl has passed, and the transmission of the output data is repeated. Further, while the transmission is being performed, the third timer 147 is reset in step C26, and the timing of the third timer 147'' is repeated anew.
f When the PTT switch 14 is in the off state in step C2D, it means that there is no intention to communicate, and following step C20, output data is transmitted in the same way as in steps 022 to C2S (steps c27 to C5o).
), then the transmission state is released (step C31), and the third timer 147 starts counting (step C32).
Thereafter, the transmission/reception routine is completed and the process returns to the start. 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 033, that is, when the line is connected, it is detected in step C33 whether the reset switch 139 is turned on (step c34).

Step C: If the reset switch 139 is turned off or not reset in I4, step C13
It is detected whether input data is present after + (step C35). 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 in step C35, decoded by the input data decoding means 155 (step C36), and the group code is It is detected whether (A) is selected (step C37),
When the group code <A> is selected, the code comparison means 156 detects whether the group code in the input data matches the group code (A>) (step 036).

If the group code (A) is not selected in step C37, and if the group code in the input data does not match the group code (A) in step C38, the group code (B) is selected in step CB7.038. It is detected whether the state is selected (Step C: I!+
>, when the group code (B) is selected (state 9), it is detected whether the group code in the input code matches the group code (B) (step C411). If the group code (B) is not selected in step C, 39, and if the group code in the input data does not match the group code (B) in step C40, the third timer is set in step 03m, C40. It is detected whether the set time of 147 has elapsed (step C41). Further, if there is no input data in step C35, step C41 is executed following step C35. As is clear from steps 037 to C40, the carriers are group codes (A) and (B).
It is being held in

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, the first lap stored in the S channel data storage area 123
The wave number data is loaded into the frequency data storage area 122, and the communication device starts from the reception state of the empty channel frequency.
A state is made to receive the frequency corresponding to the data stored in the channel data storage area 123 (S channel data discussed with the other party in step b6) (step c43). Next, it is detected whether the food 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). When the code squelch is set in step C44, step C4 is set for 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.

Further, when the reset switch 139 is in the on state in step C34, that is, when a reset instruction is issued, a second step 046 is executed following step C34.
If the flag in the line connection storage area 121 is reset in step 033, it is detected whether the reverse state setting means 148 is set (step C76). When the group code in the input horn data matches the group code (A) in step C4te,
If the group code in the input data matches the group code (B) in step C40, the third timer 147 starts counting (step C)s) following steps C38 and C4@, and then step 07G is executed. do. 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 C76, the state of the flag in the reverse state storage area 149 is detected (step 048). 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 049), 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 (
Following steps C3l), C49 and C5O, the state of the flag in the reverse state storage area 136 is reversed (step C51). When the flag in the reverse state storage area is reset in step C48, 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. Then, step 049. By executing C5@, 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. Also, in step CSt, the storage contents of the frequency data storage area 122 (empty channel data or S
The contents of the reverse state storage area 149 will be set to a state corresponding to the channel data).

Step C! After i1, it is detected whether there is any input data (step C52), and if there is no input data, the transmission/reception routine is ended and the process returns to the start again. If the reverse state setting means 148 is not set in step C76, step C76 is followed by step C5.
2 is executed.

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. In this state, it is detected whether the group code in the input data matches the group code (A) (step C55). Step C
In ps, the group code in the input data is group code (A)
When it matches, the data display means 112 displays the group code (
A> is displayed (step Cs5), and then J
It is detected whether the system is set to the operating state (step Can).

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 steps C54, C55. It is detected whether the group code (B) is selected (step Cp6), 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 Cp6). Step C57). If the group code in the manual data matches the group code (B) in step C57, the group code (
B) is displayed (step 05B), and step C56,
Step C60 is executed following C57. When the group code (B) is not selected in steps C56 and C57, the group code in the input data is changed to the group code (B).
), the transmission/reception routine is ended in steps C56 and C57, and the process returns to the start.

Child step C
In step 611, when the system is set to the operating state, it is detected whether the frequency corresponding to the empty channel data in the input data is a frequency in the amateur band after □ schedule cr+n (step Cs1).

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 the frequency 'C in the amateur band, the empty channel data in the input data is a frequency that is provided in the RAM 83 and is not desired to be drawn into the receiving state. It is detected whether the corresponding f5 frequency data matches the frequency data in the stored f5 data storage area (not shown) (step 062), and if they do not match, the state of the flag in the line connection storage area is detected. (Step 063) If they match, the transmission/reception routine is ended and the process returns to the start.

When the flag of the line connection storage area 121 is reset in step C63, that is, when there is no line connection, the frequency data of the frequency data storage area 122 is loaded into the S channel data storage area 123.Step 1; 4)' Next, empty channel frequency data in the input data is stored in frequency data storage area 1.
22 (step C65). As a result, the frequency corresponding to the empty channel data in the input data is drawn. Following step C55, p-lusaine in the input data is displayed on the data display 112 (step C56).

Following step C66, the reverse state storage area 14
9 is reset in step C67), and then the flag in the line connection storage area 121 is set in step Cs5). 147 starts timing (
Step C69).

Further, following step 06B, it is detected whether the code squelch is set (step C7Ω), and if the code squelch is not set, the transmission/reception routine is ended.
You will be returned to the start again. If the flag in the line connection storage area 121 is set in step 063, step C70 is executed following step C63. Further, if the system is not set to the operating state in step 060, following step 06+1.
It is detected whether the frequency data in the input data is specific data (step C; p1>, if it is specific data, step C70 is executed after step C71; if it is not specific data, the transmission/reception routine is ended and restarted. will be returned to.

If the food squelch is set in step 07+1, the code squelch is canceled (step 0
72), the code squelch indicator 151 is turned off (step 073), 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.

a Code squelch is used during reception when there is input data, the group code matches the transmitted group code, the system is not operating, and the empty channel frequency data in the input data is specific data. , there is input data, the group code matches the transmitted group code, the system is in operating state, and the frequency corresponding to the empty channel frequency data in the input data is a frequency within the amateur band and corresponds to frequency f5. When the frequency data is not the same, code squelch is canceled and muting is canceled.

Note that steps C33 to C74 to C71i 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.
Reference numeral 160 indicates data input control means for controlling decoding of input data when data is input.

Off. -□1. Ai-c<s, l@K(1) k81.
-YU Since the operation is performed through step b9 and step b31, the empty channel search display means 126 is displayed when an empty channel is being searched.

(Effects of the Invention) As explained above, according to the present invention, an empty channel can be automatically set as a communication channel.

In addition, when the search is in progress for an empty channel, a message to that effect is displayed by the search display means.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram showing the structure of the present invention. FIG. 2 is a block diagram showing one embodiment of the present invention. FIG. 3 is a functional block diagram for explaining 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... 2 call instruction means, 17... Empty channel. channel searching means, 18... Searching display means, 20 and 22... Storage means, 21 and 25... Selection means, 23... Group code storage means, 24... Group code comparison means.

Claims (1)

[Claims] In an amateur radio communication device equipped with 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 an output from the calling means and outputting frequency data of the searched empty communication channel; and a searching display means for displaying that the empty channel search means is searching for an empty communication channel. Then, the frequency data output from the empty channel search means and the frequency data in the input data are supplied, and the frequency data of the former is detected by the empty channel detection output of the empty channel search means, and the frequency data of the latter is detected by the detection output of the group code comparison means. A first device that selects frequency data and transfers and stores it in a second storage device.
selecting means, selecting the frequency data stored in the first storage means for a predetermined period from the generation of the empty call channel detection output of the empty channel search means, and selecting the frequency data stored in the second storage means after the elapse of the predetermined period; and a second selection means for supplying output frequency setting data to the frequency synthesizer as output frequency setting data; and a modulation signal switching means that switches the modulated signal from the microphone output side to the output data side of the output data generation means for a predetermined period from the time when the idle channel detection output of the empty channel search means is generated. A communication device for amateur radio that is characterized by: