JPS619034A - Amateur radio communication equipment - Google Patents

Abstract

PURPOSE:To bring automatically an idle channel to a talking channel and to avoid the equipment from being locked to a specific frequency data by storing a frequency data corresponding to an oscillating frequency at call to a storage means, storing a group code to a group code storage means and storing a frequency data corresponding to a frequency not locked to other storage means. CONSTITUTION:This equipment is in the reception mode when no special operation is executed. In starting a program, a code selection means 101 detects whether or not the setting of a call sign code is selected. In this case, a frequency data control means for control of a frequency or the like is shown in caption 157, a call operation control means for control in a call operation routine is shown in 158 and a data input control means controlling decode of an input data when a data is inputted is shown in 160. When the frequency data in the input data to the equipment is coincident with an f5 frequency data stored in an f5 data storage area, the equipment is not locked to the frequency data in the input data.

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 a conventional amateur radio communication device, 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
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The purpose is to provide a communication device for amateur radio that can be used.

(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 for switching 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 supplying the modulated signal to the transmitter 2. 10. Receiving section 3
Audio signal amplifier 11 that amplifies audio signals from
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 also uses the output of the frequency synthesizer 5 as a local oscillation output in the case of telegraphing. Change the received signal frequency to the intermediate frequency as *br*i'ta, ib′″sat,
rsa·0·, i indicates an antenna, and 13 indicates a speaker.

Microphone 7 has push to talk.
to talk (abbreviated as PTT) switch 14
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 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 2o 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 selects the frequency data of the empty channel output 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 2o to the frequency synthesizer 5 via the switch means 28 in place of the frequency data stored in the storage means 22 (to be described later).

The automatic channel selection device 15 also includes a frequency data storage means 23, an output data generation means 9 which stores the frequency data stored in the group coat 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, and a frequency data comparison for detecting a match between the frequency data stored in the frequency data storage means 23 and the frequency data in the input data received by the receiving section 3. means 24, storage means 26 for storing frequency data corresponding to the frequency for which pull-in is prohibited, detects whether the frequency data in the input data matches the frequency data stored in the storage means 26, and sets the switch means 28 in an open state with a detection output; The frequency data comparison means 28 is provided to control the frequency data, and the frequency data in the input data is supplied to the selection means 25. The coincidence detection output of the frequency data comparing means 24 is supplied to the selecting means 25 so as to select the frequency data in the input data and supplying the selected frequency data to the storing means 20.

(Function 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 time of the call arranged in advance with the communication partner is stored in the storage means 22, and the frequency data is stored. The means 23 stores frequency data agreed upon in advance with the communication partner, and the storage means 26 stores frequency data corresponding to frequencies that are not drawn in.

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 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 the call instruction means 16 issues a call instruction, the empty channel search means 17 which receives the call instruction signal searches for an empty channel. When an empty channel is detected 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 frequency data stored in the frequency data storage means 23 and the storage frequency data of the storage means 20 transferred to the storage means 20 in the above manner are the output data generation means 9
The output data is generated by performing predetermined data processing.

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 to the audio signal amplification 18171 kaka, □ka, 5□kaa, □□9.8 1 power selection side, and the transmission/reception switching means 6 is switched from the receiving side to the transmitting side. . Further, the selection means 21 selects the frequency data stored in the storage means 22 and applies it to the frequency synthesizer 5.

Here, the modulated signal supplied to the transmitter 2 is the output data generated by the output data generation 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 waits for radio waves of the frequency of the empty channel to be transmitted.

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

The frequency data in the received input data is compared with the stored frequency data stored in the frequency data storage means 23 in the frequency data comparison means 24, and a match is detected. When a match between both frequency data is detected, the selection means 25 is switched by the output of the frequency data 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.

Further, the frequency data in the input data is compared with the frequency data stored in the storage means 26 in the frequency data comparison means 27, and when the image frequency data match, the frequency data comparison means 27 generates an output and the switch means 28 is opened. Under the control, the frequency data to the frequency synthesizer 5 does not change and is no longer drawn into empty channels.

When the channel is drawn into an empty channel as described above, 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 switched to the transmission side.
By stopping the suppression, 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.

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

FIG. 2 is a block diagram showing one implementation 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 that will be described later.
a modulation signal switching means 10 which inputs the output data modulated by the modulation signal switching means 10, and a modulator 31 which modulates the oscillation output of the frequency synthesizer 5 by using the output of the modulation signal switching means 10 as a modulation signal.
, a high frequency amplifier 32 that amplifies the output of the modulator 31, 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. The signal or output from modem 41 is transmitted.

The receiving unit 3A includes a high frequency amplifier 34 that receives and amplifies the modulated wave supplied via the antenna switching unit 4, and a mixer that mixes the oscillation output of the frequency synthesizer 5 and the output of the high frequency amplifier 34 and converts the mixture into an intermediate frequency signal. 35, an intermediate frequency amplifier 36 that amplifies the output of the mixer 35, that is, an intermediate frequency signal, and a demodulator 37 that demodulates the output of the intermediate frequency amplifier 36.
, a muting means 120 for mutating the output of the demodulator 37;
, ``An audio signal amplifier 11 that amplifies the audio signal outputted through the muting means 120 and drives the speaker 13, detects whether the channel is empty by receiving the demodulated output and detecting whether the level is below a predetermined level. The output of the demodulator 37 is connected to the modem 4.
It is supplied to 1.

On the other hand, 80 is a microcomputer, which basically consists of CPU 81, ROM 82, RAM 83, and input port 8.
4, 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 numeric keypad switch for setting a call sign and a setting code. code setting means; 115 is a switch, and frequency data selection means is used to select a setting code for standby or use; 118' is a switch, which determines whether to automatically connect the communication device to the other party's 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 a frequency which will be described later. It is set in the data storage area 122.

161 is a frequency data selection setting means for instructing what the set frequency data corresponds to; the start channel frequency, f! It is specified whether it corresponds to frequency data of ~fs. 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 1 to switch; 148 is an instruction to replace the start channel frequency with the empty channel frequency; The squelch setting means 150 is a code squelch setting means that instructs to automatically cancel squelch by using frequency data as a squelch code.

A program for controlling the CPLI 81 is written in the ROM 82, and a code selection means 1 is written in the input port 84.
01 output, code setting means 102 output, frequency data selection means 115 output, system operating state setting means 1
18, output of call setting means 119, output of frequency data setting means 124, frequency data selection setting means 16
1 output, output of priority selection state setting means 129, output of selection exclusion state setting means 134, reset switch 139
, the output of the reverse setting means 148, the output of the code squelch setting means 150, 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. C
The PU 81 reads the signals and data supplied to the input port 84 according to the program stored in the ROM 82 as needed, stores them in the RAM 83, and performs calculations, comparisons, 7'9' 1llN@iHb゛,, * 9 (
v86';=j:'), it is determined whether the input state has continued for the time m"iL, and according to the calculation, comparison, processing, and determination results, the data display 112 and call sign are output via the output port 85. Modulates a display signal to the display 114, empty channel search display 126, line connection display 146, and code squelch display 151, frequency data (dividing ratio) to the frequency synthesizer 5, and a switching signal to the transmission/reception switching means 6. The switching signal is sent to the signal switching means 10, and the output data is sent to the modem 4 via the parallel/serial converter 40.
1, the mute control signal is outputted to the mute means 120 with or without latching as necessary.

In this embodiment configured as described above, for example, 144
MHz band N44.520MHz ~ 145.730MH
z), and the channel is set to 20 MHz steps. In this case, the number of channels is 64 and 11 channels.

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 FIG.
゜〜□６□Yo, eh. -Ayah. Eh, let me explain.

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 setting a call sign code has been 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. It is possible to configure it. In addition, setting codes A and B are displayed as setting codes in order to function as so-called frequency data and also as a code squelch code.
Hereinafter, the frequency data will be indicated as A and B.

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 code setting means 102 that was pressed the next two times adds the j value indicated by the j value and obtains the hexadecimal number corresponding to the upper 3 bits of the 7 unit ASCII code. Each hexadecimal number corresponds to 4 bits.

When it is selected to set a call sign code in the switch a1, the second callan 1 to area (hereinafter, the count area will be referred to as a counter) 104 provided in the RAM 83 is used to set 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 code setting means 102 has been pressed to correspond to one character of the ASCII code (step a2). aa)
. Next, the key switch output supplied from the code setting means 102 is converted into an ASCII code by the above-mentioned 2
The call sign code is loaded into the call sign code calculation means 106 which adds the pressed values (step a4), and then the first
The counter of is set to "' + 1" (step aS
). Steps a4 to a5 are repeated the 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 114 via the code calculation means 113 (step ag). Next, the second counter 104 is incremented by 1 (step a9), and steps 83 to a9 are repeated the number of times corresponding to the digit of the call sign (step a1@). In step a-n, the count value of the second counter 104 is When becomes a value corresponding to the number of digits of the call sign, the call sign code is completely stored in the call sign code storage area 107, and a flag is stored in the call sign code setting state storage area 108 provided in the RAM 83. is set (step a11).Then, the call sign code selection of the code selection means 101 is canceled and the position where the frequency data A is to be set is selected (step at2).
).

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

In this embodiment, the frequency data is frequency data (A)
.

Although the example shown in (B) is a case where two frequency data can be set, it is not necessary to limit the setting to two frequency data.

When selecting a call sign code is not selected in step a1, step a13 is executed following the Stella 1a dish.

If it is selected in step a13 to set the frequency data, the third counter 105 provided in the RAM 83 and counting the number of digits of the frequency data is cleared (step aI+), and the selected frequency data is is frequency data (A) is detected (step a
XS). When it is detected in step als that the frequency data (A) is selected, an input code is provided in the RAM 83, tLr, :11(1)uo-1"
'J7109$''0-t'ilk.

(step as ts), counter 10 of #I3
5 is incremented by "+1" (step a17), and the set frequency data (A) is displayed on the data display 112 via the data display selection means 111 (step aSS). Following step ate, steps atS to a are performed until the count value of the third counter 105 reaches the number of digits of the frequency data.
Step i8 is repeated, and when the count value of the third counter 105 reaches the number of digits of the frequency data (step ars), step a13 is executed next. Therefore, the frequency data (
A) is now stored.

When the frequency data selected in step a1S is not frequency data (A), it is frequency data (B), and in this case, following step aSS, step a
Steps 820-a23 similar to steps 16-a19 are executed. As a result, the frequency data (
B) is now stored.

If setting the frequency data is not selected in step a13, it is detected whether frequency data <A> has been selected by the frequency data selection means 115 to be used for receiving purposes (step a24). .

Frequency data (A) is determined by the frequency data selection means 115.
is selected, it is detected whether frequency data (A) is stored in the first frequency data storage area 109 (step a25).

When the frequency data (A) is stored in the first frequency data storage area 109 at step a2s, a flag is set in the frequency data (A) selection permission storage area 116 provided in the RAM 83 (step a2
r+), the frequency data (A
) is displayed (step a27).

Next, it is detected whether the frequency data (B) has been selected by the frequency data selection means 115 for use (test tube a26).

When the frequency data (A) is not selected in step a24, the frequency data (A) is not selected in step a2S.
If A) is not set, step a24. a25
Subsequently, step a28 is executed.

When the frequency data (B) is selected in step a28, the frequency data (B) is selected as in step a2s.
) is stored in the second frequency data storage area 110 (step a29).

In step a29, when frequency data (B) is stored in the second frequency data storage area 11o, R
A flag is set in the frequency data (B) selection permission storage area 117 provided in the AM83 (step aaO
), the set frequency data (B) is displayed on the data display 112 with a specific display such as a decimal point (step a31). Also, frequency data (A
It will be clear from steps 24 to a30 that both ) and (B) can be selected.

Following step aai, a calling routine is executed.

Further, when the frequency data (B) is not selected in step a211 and the frequency data (B) is not set in step 82B'', the calling routine is executed following steps 82B and 82B.

As is clear from the above, the call sign code and frequency data (A) and (B) can be set.

Further, even if the frequency data (A) and (B) are set and stored, if they are not selected in step a2''4.a2a, 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 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. If the system operating state setting means 118 is set in step b1, the call setting means 11
It is detected whether 9 is set (step b).

Call setting means '1 in step b.
If 119 is not set, the calling routine is skipped and the transmitting/receiving routine is executed. If the call setting means 119 is set in step b2, step b2
Subsequently, it is detected whether a call sign has been set (step El).

Whether a call sign is set is detected by whether a flag is set in the call sign 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 II, that is, the 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 mouth line is not connected in step bs, the frequency data stored in the frequency data storage area 122 provided in the RAM 83 is stored in the RAM 83.
The data is loaded into the start channel data storage area (hereinafter referred to as S channel data storage area) 123 provided in S channel data storage area 123 (step bs). Note that, in the frequency data storage area 122, the frequency data negotiated with the communicating party before step b6 is stored in the frequency data setting means 124, which includes a rotary encoder or the like.
This setting data is stored in the frequency data storage area 122.

Continuing from step b6, the holding state is prohibited (step b7). Holding is in state, state is prohibited in RAM83
The holding provided inside is carried out by resetting the flag in the state storage area 125. Continuing to step b7, the empty channel 11 channel search indicator 126 lights up to display that the empty channel is being searched (step b
e). In addition to the light display, the empty channel may be displayed by an audio display (for example, a beep sound).

Further, a priority selection state setting means 12 that preferentially selects frequency data, for example, fx, 12, which are preset separately in the f1 data storage area 127 and the f2 data storage area 128 provided in the RAM 83, as a communication channel.
It is detected whether 9 is set (step b9).

When the priority selection state is set in step b9, the frequency data f1 is stored in the frequency data storage area J.
122 (step t)z+),
Timing of the first timer 130 is started (step b1
1). 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. Next to Stellar 7''btt, the empty channel detection means 132 comprising a comparator 39' detects whether the received signal of the frequency corresponding to the 41 frequency data loaded in the frequency data storage area 122 is below a predetermined level ( In step b12), 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 b
13, if the level of the received signal received in step b12 continues to be below the predetermined level for the set time of the first evening timer 130, the frequency corresponding to the 41 frequency data is determined to be an idle line. , step b described below
Execute 27.

Also, in step b12, the received signal level exceeds the predetermined level i, or in step 1f
If in b13 the received signal level does not remain below the predetermined level for the set time of the first timer 130, then in step b12 the frequency data f2 is loaded into the frequency data storage area 122 (step EIN
4) The first timer 130 starts counting (step b15). Following step b15, it is detected whether the received signal of the frequency corresponding to the f2 frequency data loaded in the frequency data storage area 122 is below a predetermined level (step t) 1s), and the received signal level is below the predetermined level. It is detected whether the timer continues for the set time of the first timer 13'O (step b!7). In 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 Execute. Further, it is determined 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 the set time of the timer 130 does not continue, the frequency data generated by the random frequency generating means 133 in step b1[i is stored in the frequency data storage area 122.
(step b1a), and then the frequency data stored in the frequency data storage area 122 is increased (step b19).

If the priority selection state setting means 129 is not set in step b9, step bg is followed by step bl[l]. In this case, the frequency data that should be prioritized is not selected.

Following step b19, frequency data such as f3. (It is detected whether the selection exclusion state setting means 134 for excluding selection of 4 as a communication channel is set (step b2o). When the selection exclusion state setting means 134 is set in step b20, the frequency data storage area The frequency data comparison means 138 detects whether the frequency data stored in the frequency data f3 matches the frequency data f3 (step b21).

In step b21, the frequency data storage area 122
If the frequency data stored in the frequency data is not the frequency data (B, 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, in step b19 the frequency data storage area,
This means that the frequency data stored in A 122 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 b20. In this case, it is not determined whether the frequency data should be selectively excluded.

In step b23, the frequency data storage area 122
When the frequency corresponding to the frequency data stored in is within the amateur band, the first timer 13
0 timing is started (step b24), then it is detected whether the received signal level is below a predetermined level (step b25), and it is determined that the received signal level remains below the predetermined level for the set time of the first timer 130. It is detected whether or not it has been done (step 26). In step b25, the first timer 1 determines that the received signal level is below a predetermined level.
If it continues for the set time of 30, it means that the frequency corresponding to the frequency data stored in the frequency data storage area 122 is an idle line in step b19. In addition, the frequency data stored in the frequency data storage area-122 after Stella Sept b2B is
, 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 b2e).

Here, when step b2B is executed through step b13 or step b17, what is stored in the empty channel data storage area 136 is frequency data CH1 or f2, and step b2B is executed through steps b20- and -b27. When this happens, the frequency data stored in the empty channel data storage area 136 will never be the frequency data f3.chi.4. Also, step b5
When step b2B is executed through step b2B, the frequency data stored in the S channel data storage area 123 is loaded into the frequency and number data storage area 122 again in step b28, with the line connection being established. It means a call.

Following step b28, the frequency data storage area 122
It is detected whether the received signal level of the frequency corresponding to the frequency data loaded into the
9), PTT switch 1 when it exceeds the predetermined level.
4 is in the on state (step b3o). In step b30, when the PTT switch 14 is on, 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 line surge indicator 126 is turned off (step b
ar). Here, step b3 is passed through step b3D.
When step 1 is executed, the received signal level is above a predetermined value, but the call is forced to be made. Note that in step b2B, it is detected whether the received signal level is below a predetermined level or not. This is to confirm at this point whether the channel is empty.

Steps b21, b22. When the frequency data stored in the frequency data storage area 122 matches the frequency data 53 in b23, the frequency data f4
If the received signal level corresponds to a frequency outside the amateur band, and the received signal level exceeds the predetermined level in step b25, step b
21°b22+b23. Following b2s l), it is detected whether the TT switch 14 is in the on state (step b32).
, when the PTT switch 14 is not on, it is detected whether the reset switch 139 is on (step b).
33). In step b33, the reset switch 13
9 is in the off state, step b33 is followed by step blB.

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 instruction is to stop the call, and step b32. S after b33
Channel data storage Frequency data stored in storage area 123 is stored in frequency data storage area 1
22 (step b34), and a step bit described later is executed. Step b3 (PT in l
If the T switch 14 is not in the on state, step b30
Next, it is detected whether the reset switch 139 is in the on state (step b3s), and if the reset switch 139 is not in the on state, step b35 is followed by step b2.
B is implemented. When the reset switch 139 is in the on state in step b35, this means that an instruction is given to stop the call, and step bs1, which will be described later, is executed following step bs16.

Following step b31, the frequency data stored in the empty channel data storage area 136 is loaded into the output data encoding means 141 (step b3Ii),
Next, the frequency data (A) selected by the code selection means 101 is loaded into the output data encoding means 141 (step b37), and the call sign data stored in the call sign code storage area 107 is also loaded.

is loaded into the output data encoding means 141.
Blur (step tle). Then, the output data encoding means 141 encodes the encoded data into, for example, Hagelberger code (step b3B). Therefore, in step b37, the call sign code, frequency data and empty channel frequency data are encoded.

Following step b39, the transmitting section 2 is set to a data transmitting state, that is, the output of the output encoding means 141 is converted into parallel/serial by the converting means 4o, and the output is led to the transmitting section (step beo), and the communication device is switched to the transmitting/receiving switching means. 6
is set to a transmission state (step tlt), 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 b311 is subsequently transmitted (step b43). Therefore, by executing step b43, a so-called call is made in which the frequency corresponding to the S channel frequency data is modulated with the data including the empty channel frequency data and transmitted.

Following step b43, the transmission branch is canceled and the transmission/reception switching means 6 is returned to the reception state (step b44), and 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, at this point, the communication device is set to the searched empty channel reception frequency, and is set to receive and receive transmissions from the other party. Following step b4[i, the frequency corresponding to the frequency 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 b46).

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

Following step b48, the line connection indicator 146 is turned on (step bee). Following step b4fl, the third timer 147 starts counting (step b4fl).
sa). The set time of the third timer 47 is set to a time when it is assumed that the line connection has not been established if there is no input from the other party within this set time.

, following step b50, the reverse state setting means 14
The 7 lag of the reverse state storage area 149 provided in the RAM 83 is reset to store the output state of 8 (step b5).The reverse state storage area 149 stores the frequency data stored in the frequency data storage area 122 Frequency data corresponding to the empty channel, or ゛S
This indicates whether the frequency data corresponds to the channel.

After step bst, the receiver is the 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 bss). If the code squelch is not set in step b53, the muting by the muting means 120 is canceled following step bsa (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 is set in step b53, the code squelch indicator 151 is turned on following step bs3 (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 bsI is executed subsequent to step b:14 and step b35, steps b26 to b5
0, steps 1) 31 to 1) so 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.

72") Lt -5-> K A !, !"PTT2
-i'yf14#.

Whether it is on is detected (step CI). When the PTT switch 14 is in the on state in step C1, it is detected whether the hood squelch is set (step C2), and if the code squelch is set in step C2, the hood squelch setting is canceled. step CB), then the code squelch indicator 151
is turned off (snap C4), muting by the muting means 120 is canceled (step Cs), the transmission/reception routine is ended, and the process returns to the start again.

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

If the code squelch is not set in step C2, then it is detected whether the system operating state setting means 118 is set in the same manner as in step b1 (step C6).

In step C6, the system operating state setting means 118
If the PTT switch 14 is not set, it is set to the transmitting state (step C7), and then it is detected whether the PTT switch 14 is on (step Cs). In step c6, 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 transmission state is canceled (step CII), the transmission and reception 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 (
'l1l), then the frequency data <A) is the output data E.

is loaded into the encoding means 141 (step Crt),
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), and is encoded by the output data encoding means 141 (step 013).

Following step C13, the transmitter 2 is set to a data transmitting state (step CL4), the communication device is set to a transmitting state (step C15), the synchronized data is transmitted (step 016), and then encoded in step 013. output data is transmitted (step 017)
. Upon completion of this transmission, the data transmission state is released (step 018). In steps CLO 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. That will happen. Upon receiving this transmission, the IC partner side cancels the code squelch as described later.

Transmission becomes possible upon completion of step CtS. Following step C18, the second timer 153 starts counting time (step C19).

Following step Ct9, it is detected whether the PTT switch 14 is in the OFF state (step C20), and the PTT switch 1
4 is not in the off state, it waits for the set time of the second timer 153 to elapse (step C21). Step C
21, when the set time of the second timer 153 has elapsed, the data transmission state is set (step C22) as in step C14, and synchronous data is transmitted (step C23>, the specific channel data storage area in step b36). 152 is encoded as empty channel data (step C24), the data transmission state is canceled (step C25), and the third timer 47 starts timing (step C26).・0i1 again step 01
9 is executed. Therefore CIB~C
26, the transmission is temporarily interrupted every time the set period of the second timer 153 elapses, and the transmission of the output data is repeated. Further, while the transmission is being performed, the third timer 147 is reset in step 025, and the timing of the third timer 147 is repeated anew.

When the PTT switch 14 is off in step C20, it means that there is no intention to communicate, and following step 020, output data is sent (Fj) in the same way as in steps 022 to C2S (steps C27 to 030).
), then the transmission state is released (step C31), and the third timer 147 starts opening (step c32).
After that, the sending/receiving routine is finished 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).

If the reset switch 139 is not turned on in step C34, it is detected whether there is input data in step C34 (step C3
5). As described above, in this embodiment, the device is normally in the receiving state. When the output data from the other party is received in step C35, the input data is converted into parallel data by the serial/parallel conversion means 42 and decoded by the input data decoding means 155 (step C: fs), It is detected whether the frequency data (A) is selected (step C37).
, when the frequency data (A) is selected, the code comparing means 156 detects whether the frequency data in the input data matches the frequency data (A) (step C38).

When the frequency data (A) is not selected in step C37, if the frequency data in the input data does not match the frequency data (A) in step 03g, the frequency data (B) is selected in steps C37 and C38. is detected whether it is selected (
Step 039), when the frequency data (B) is in the immersed state, it is detected whether the frequency data in the input code matches the frequency data (,B) (Step C40)
. When the frequency data (B) is not selected in step C311, if it is determined in step C411 that the frequency data in the input data does not match the frequency data (B), the third
It is detected whether the set time of the timer 147 has elapsed (
Step C41). Further, if there is no input data in step C35, step C35 is followed by step C4.
1 is executed. As is clear from steps CB7 to 'C40, standby is performed using frequency data (A) and (B).

Therefore, no reset instruction was given and “
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When the frequency data in the input data does not match the frequency data in the selected state, the third timer 147
When the setting period has elapsed, muting is performed by the muting means 120 (step C42). Step C
42, the S channel data storage area 12.3
Loads the frequency data stored in the S channel data storage area 123 into the frequency data storage area 122, and the communication device loads the data stored in the S channel data storage area 123 (S (step c43). Next, it is detected whether the code squelch is set (step C44), and if the code squelch is not set, the muting means 120
Muting is canceled (steps C, , L)
5) The flag in the line connection storage area 121 is reset (step C46). Step C44 if the code squelch is set. 44
G, :) I-c2ga7a. 4 s S*ht h6゜yu 'iTetebu 46 followed by 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, step C46 is executed subsequent to step C34.

When 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 C
76). When the frequency data in the input data matches the frequency data (A) in step C38, and when the frequency data in the input data matches the frequency data (<B') in step C411, step 03a, C+
of,: Next, the third timer 147 starts counting (
Step C75), then step 07G is executed.

The third timer is reset by the start of time measurement in step C7S, 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 C48). 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 C49), and the flag in the reverse state storage area 136 is set. If it has been reset, the frequency data stored in the S channel data storage area 123 is loaded into the frequency data storage area 122 (step C3O), and step 049. Following C5O, the state of the flag in the reverse state storage area 136 is inverted (step C51). When the flag in the reverse state storage area is reset in step 04B, empty channel data is stored in the frequency data storage area 122, and when the flag is hit, S channel data is stored in the frequency data storage area 122. Therefore, by executing steps 049 and 050, the storage contents of the frequency data storage area 122 are changed to empty tongue channel data and S.
The channel data will be replaced. 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 C5I, the contents of the reverse state storage area 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 C5j, 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
! When the reverse mode [1 setting means 148 is not set, step 076 is followed by step C62.
is executed.

If there is input data in step C52, the input data is decoded (step C53), and it is then detected whether frequency data (A) is selected (step C54), and if the frequency data (A) is In the selected state, it is detected whether the group chord r in the input data matches the frequency data (A) (step C55).
). When the frequency data in the input data matches the frequency data (A>) in step CSS, the frequency data (A) is displayed on the data display means 112 (step C3lI), and then it is detected whether the system is set to the operating state. (Step C5o).

If the frequency data (A) is not selected in step C54, and if the frequency data in the input data does not match the frequency data (A) in step C55, the frequency data (B) is selected in step C54, 0S5. It is detected whether the frequency data (B) is selected (step Css), and if the frequency data (B) is selected, it is detected whether the frequency data in the input data matches the frequency data (B). (Step 057
). If the frequency data in the human data matches the frequency data (B) in step C57, step c5
7-': Z data display - Frequency data (B) is displayed on 1A 112 (step 0ss), and step C60 is executed following steps C56 and 057. Step 05G.

When the frequency data (B) is not selected in C57, and the frequency data in the input data does not match the frequency data (8), the transmission/reception routine is ended in steps C56 and C57, and the process returns to the start again. .

In step c611, when the system is set to the operating state, it is detected next to step CSa whether the frequency corresponding to the empty channel data in the input data is a frequency within the amateur band (step 061
). If in step C61 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 restarted in step CSt and then returned 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
The f5 frequency data corresponding to the frequency that is set in the M83 and which is not to be drawn into the receiving state is stored.
5 data storage area (not shown) is detected (step C62), 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,
You will be returned 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 is zeroed into the frequency data storage area 122 (step C65). As a result, the frequency corresponding to the empty channel detector in the input data will be drawn. Following step C65, the data display 11
2, the call sign in the input data is displayed (step C66).

Following step 066, the reverse state storage area 14
9 is reset (step C67), the flag of the line connection storage area 121 is set (step 068), and the third timer 147 is started to measure time (step CG9).

Further, following step C6g, it is detected whether or not the hood squelch is set (step 07 (+); if the hood squelch is not set, the transmission/reception routine is ended and the process returns to the start again. In step 063, the line connection storage area is When the flag 121 is set, step C7+1 is executed after step C63.If the system is not set to the operating state at step C611, then after step CSO, the frequency data in the input data is specified. It is detected whether the data is data (step C71), and if it is specific data, step C7o is executed following step 071, and if it is not specific data, the transmission/reception routine ends and the process returns to the start again.

, When the code squelch is set in step C70, the code squelch is canceled (step C72), the hood squelch display 151 is turned off (step 073), and the muting V by the muting means 120 is canceled (step C74). , then ends the sending/receiving routine and returns to the start.

Therefore, when receiving code squelch, if there is input data, the frequency data matches the transmitted frequency data, the system is not in an operating state, and the empty channel frequency data in the input data is specific data,
There is input data, the frequency data matches the transmitted frequency data, the system is in operation, and the frequency corresponding to the empty channel frequency data in the input data is within the amateur band and corresponds to frequency f5. When the data is not frequency data, code squelch is canceled and muting is canceled.

Note that steps 033 to G74 to G76 are a reception routine.

Also, in FIG. 3, 157 is 1□ related to frequency.

Ue aos. 1-□□□A5. 158 indicates a calling operation control means for controlling the calling operation routine, 159 indicates a data output control means for controlling the encoding of output data, etc. when outputting data, 1
Reference numeral 60 indicates data input control means for controlling decoding of input data when data is input.

In one embodiment of the present invention, the operation goes through step C62, so that when the frequency data in the input data matches the is frequency data stored in the f5 data storage area, the frequency data in the input data Don't get drawn into it.

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

Further, when the frequency data in the input data is specific frequency data, the frequency corresponding to that frequency data is not drawn in.

[Brief explanation of the drawing]

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 for explaining the block diagram shown in the tiR2 diagram. 4 to 6 are diagrams 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 0 hon,
9... Output data generation means, 10... Modulation signal switching means, 13... Speaker, 16... Calling instruction means,
17... Sky channel search means, 20, 22 and 2
6...Memory means, ←---4. -@) 14-, 21- and 25... selection means, 23... frequency data storage means, 24... frequency data comparison means, 27... frequency data comparison means, 28... switching 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. storage means, second and third storage means for storing frequency data, group code storage means for storing group codes, storage group codes of the group code storage means and storage frequency data of the second storage means; output data generation means for generating corresponding output 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 a call instruction for issuing a call instruction. an empty channel searching means for searching for an empty communication channel in response to an output from the calling instruction means; and an empty channel searching means to which the frequency data output from the empty channel searching means and the frequency data in the input data are supplied. a first selection means that selects the former frequency data based on the empty channel detection output and the latter frequency data based on the detection output of the group code comparison means, and transfers and stores the selected frequency data in the second storage means; a second selection means for selecting the frequency data stored in the first storage means for a predetermined period from the generation of the channel detection output and selecting the frequency data stored in the second storage means after the elapse of the predetermined period; a switch means for supplying the frequency data outputted from the frequency synthesizer as output frequency setting data to the frequency synthesizer; Frequency data comparing means for controlling the cut-off state; and transmitting/receiving switching for switching the communication device from the receiving side to the transmitting side during the predetermined period from when the empty channel detection output of the empty channel searching means is generated or during the output of the push-to-talk switch. and modulation signal switching means for switching the modulated signal from the microphone output side to the output data side of the output data generation means for the predetermined period from the time when the empty channel search means generates the empty communication channel detection output. Amateur radio communication device.