JPS619028A - Amateur radio communicaton equipment - Google Patents

Abstract

PURPOSE:To bring automatically an idle channel into a talking channel by providing the 1st and 2nd storage means storing respectively a oscillation frequency data at call and a frequency data and a group code storage means and generating an output data corresponding to a storage group code and the storage frequency data of the 2nd storage means. CONSTITUTION:A group code in a received input data is compared with a storage group code stored in a group code storage means 23 by a group code comparison means 24 and the coincidence is detected. When the coincidence of both the group codes is detected, a selection means 25 is switched by an output of the group code comparison means 24, a frequency data in the input data of the reception signal is selected and fed to a storage means 20 via a switch means 19. The selection means 21 selects the storage frequency data of the storage means 20 and a frequency synthesizer 5 is set to a frequency corresponding to a frequency data in the input data of the reception signal. Thus, the amateur radio communication equipment is locked automatically to an idle channel.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an amateur radio communication device that automatically connects 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 hot wire communication device that can automatically set the ¥ channel as a communication channel.

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

Reference numeral 1 denotes a communication device main body, which includes a transmitting section 2, a receiving section 3, an antenna switching section 4, a frequency synthesizer section 5, and a transmitting/receiving section that selectively supplies power to the transmitting section 2 and receiving section 3 to switch between transmission and reception. a switching means 6, an audio signal amplifier 8 for amplifying the output of the microbon 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 communication unit 2. 10, an audio signal amplifier 11 for amplifying the audio signal from the receiver section 3 with a receiver C; Like modulating and transmitting.

T... , = s, Itttttttttt 9. A,,5゜1ka,□
12 is an antenna, and 13 is a speaker.

Microphone 7 has push to talk.
to talk (abbreviated as PTT) switch 14 is installed, 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 20 for storing frequency data.

The frequency data of the empty channel found by the empty channel searching means 0 stage 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. When the transmission/reception switching means 6 is switched from the receiving side to the transmitting side and the modulation signal switching circuit 10 is switched from the audio signal amplifier 8 side to the output side of the output data generating means 9 for a predetermined period of time, and this predetermined period has elapsed. The selection means 21 is configured to supply frequency data stored in the storage means 2 to the frequency synthesizer 5 in place of frequency data stored in the storage means 22, which will be described later.

The automatic channel selection device 15 also includes a channel forming means 18 that receives the output of the calling means 16 and detects whether a communication channel has been formed with the other party, and frequency data selectively outputted by the selecting means 25. Memory 1 stage 2
0, and a switch means 19 for detecting the formation of the channel forming means 18.
9 is controlled to be in an open state.

The automatic channel selection device 15 is further provided with a group code storage means 23, and the stored group codes of the group code storage means 23 and the stored frequency data of the storage means 20 are stored in correspondence with each other.
Output data generation means 9 that generates output data, storage means 22 that stores frequency data corresponding to the oscillation frequency at the time of calling, storage group code of group code storage means 23 and input data received by reception section 3. The frequency data in the input data is supplied to the selection means 25. The coincidence detection output of the group code comparison means 24 is supplied to the selection means 25 so as to select frequency data in the input data and switch to supply it to the storage means 20.

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

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

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 issued by the call instruction means 16, a call instruction signal is received, and the empty channel search means 17 searches for an empty channel. When an empty channel is found 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 2 transferred to the storage means 2'0 as described above.
The storage frequency data of 0 is stored in the output data generation means 9, and is generated as output data after predetermined data processing. An output is generated at least until the output data is transmitted to the signal switching circuit 10 and the transmission/reception switching means 6. The modulated signal switching circuit 10 receiving this output is switched from the output selection side of the audio signal amplifier 8 to the output selection side of the output data generation means 9, and the transmission/reception switching means 6 is switched from the reception side to the transmission side. Further, the selection means 21 is the storage means 22.
The stored frequency data is selected and applied 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 IJ''5. Then, 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 starts transmitting radio waves of the frequency of the empty channel. You will be in a state where you will receive something.

Further, when a calling instruction is issued by the calling instruction means 16 and a communication channel with the other party is formed, the '/-V channel forming means 17 generates an output. The switch means 19 is activated by the output of the channel formation detection means 18.
is opened and the output of the selection means 25 is prevented from being supplied to the storage means 20. As a result, the storage means 20 stores the frequency data of the empty channel previously detected by the empty channel searching means 17.

On the other hand, by the output of the channel forming means 18, the transmission/reception switching means 6 is switched from the reception side to the transmission side, and the modulation signal switching circuit 10 is switched from the audio signal amplifier 8 side to the output data generation means 9 side for a predetermined period of time, and the output data generation means The output data from 9 is transmitted for a predetermined period of time at an oscillation frequency corresponding to the frequency data stored in the storage means 22. In other words, a re-call is performed. In this case, the call instruction means 16 is used in common when making a call.D 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 group code in the received input data is l! ¥]-code comparison means 24 compares the stored group code with the stored group code stored in the group code storage means 23, and a match is detected. When a match between both group codes is detected, I! The selection means 25 is switched by the output of the Y code comparison means 24, and frequency data in the input data of the received signal is selected and supplied to the storage means 20 via the switch means 19. At this time, the selection means 21 selects the frequency data stored in the storage means 20, and the frequency selection section 5 is set to a frequency corresponding to the frequency data contained in the input data of the received signal. As a result, the Amachi'-A radio communication device is automatically pulled into an empty channel.

Therefore, by pressing the PTT switch 14, the transmission/reception switching means 6 is switched to the transmission side and transmission is performed, and by reducing the suppression of the P]-1 switch 14, the transmission/reception switching means 6 is switched to the transmission side. communication will be performed on the frequency of the above-mentioned vacant 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 2Δ includes an audio signal amplifier 8 that amplifies the output of the microphone 7, a modulated signal switching means 10 that receives the output data modulated by the modem 41, and a modulated signal switching means 10 that receives the output data modulated by the modem 41 described above. A frequency synthesizer (a modulator 31 that modulates the oscillation output of the analyzer 5, a high-frequency amplifier 32 that amplifies the output of the modulator 31, and a high-frequency amplifier 32 that amplifies the output of the high-frequency amplifier 32 and transmits the output of the high-frequency amplifier 32 through the antenna switching unit 4 by using the output horn as a modulation signal) 81 from the microphone 7.
The first receiving section 3A transmits the voice signal or the output from the modem 41, and the high frequency amplifier 34 receives and amplifies the modulated wave supplied via the antenna switching section 4, and the oscillation output of the frequency synthesizer 5 and the high frequency amplifier 34. a mixer 35 that mixes the output and converts it into an intermediate frequency signal; an intermediate frequency amplifier 36 that amplifies the output of the mixer 35, that is, the intermediate frequency signal;
A demodulator 37 that demodulates the output of the intermediate frequency amplifier 36, a mute means 120 that mutes the output of the demodulator 37, and an audio signal amplifier 11 that amplifies the audio signal outputted via the mute means 120 and drives the speaker 13. , a comparator 39 receives the demodulated output and detects whether it is an empty channel by detecting whether the level is below a predetermined level, and the output of the demodulator 37 is supplied to the modem 41.

On the other hand, 80 is a microcomputer, which basically comprises a CI U 81, a ROM 82, a RAM 83, an input port 84, output ports 1 to 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 digital key switch. 115 is a switch that selects a setting code for use in standby mode, and 118 is a switch that automatically connects the line to the other party's communication device. 119 is a call setting means consisting of a switch for instructing a call, and 124 is a frequency data setting means for setting frequency data using a rotary encoder and an up/down counter. (after) Frequency data record 1f1. It is set to T rear 122.

Numeral 161 is a frequency data selection and setting means for instructing what the set frequency data corresponds to, and it is specified whether the frequency data corresponds to the start channel frequency or f1 to f5. Reference numeral 129 is a switch, and priority selection state setting means specifies that predetermined frequency data should be preferentially selected as an empty channel when searching for an empty channel. Reference numeral 134 is a switch, which is opposite to the priority selection state setting means 129. 139 is a reset switch, and 148 is a reverse switch that instructs to replace the start channel frequency with the empty channel frequency. setting means,
Reference numeral 150 denotes code squelch setting means for instructing to automatically cancel the squelch by using the group]-code as the squelch code.

The ROM82 has a programmer 1 that controls the CPU81.
The input port 84 has the output of the code selection means 101, the output of the code setting means 102,
Output of group code selection means 115, output of system operation state setting means 118, output of call setting means 119, output of frequency data setting means 124, output of frequency data selection setting means 161, priority selection (state, status setting means 129
, the output of the selection/exclusion state setting means 134, the output of the reset switch 139, the output of the reverse setting means 148, the output of the code squelch deactivation hand R1b'O', P
The output of the TT switch 14, the demodulated output data of the modem 41 converted by the serial/parallel converter 42', and the output hζ of the comparator 39 are supplied. CPU81 is ROM8
Input board 8 according to the program stored in 2.
It reads the signals and data supplied to the timer 86 when necessary, stores them in the RAM 83, performs calculations, comparisons, and data processing, and also judges whether the input state continues for the time set by the timer 86. According to the results of the operations, calculations, comparisons, processing, and judgments, the data display 112 and the call ``''''' i yr; i 114.
9! %? '2 At 'j-f ti 7F W!
A ~ 126, line connection display 146, code squelch 4 Display signal on display 151, frequency data (frequency division ratio) on frequency synthesizer 5, switching signal on transmission/reception switching means 6, switching on modulation signal switching means 10 The signal is outputted via the parallel/serial converter 40, the output data to the modem 41, and the Mikoto control signal to the mute means 120, latched or unlatched as necessary.

In this embodiment configured as described above, for example, 144
MHz band (144,520M1-1z~145.730
M1-12), and set the channel to 20M.
Let it be l-IZ 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.

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

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

When the program is started, the code selection means 101 detects whether setting a call sign code has been selected (step al). The code selection means 101 is designated to set the calli-in code, setting codes A and B, and is controlled to the 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. Further, the setting codes A and B are referred to as setting codes in order to function as so-called group codes and as code squelch codes, 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, if one character of the ASCII code is specified by pressing the code setting single stage 10,264 times, and the code setting means 10 is pressed the first two times.
The hexadecimal number corresponding to the upper 3 bits of the code is added to the hexadecimal number corresponding to the upper 3 bits of the 7-unit ASCII code. The hexadecimal numbers corresponding to the lower 4 bits are respectively shown.

When setting a call sign code is selected in the switchboard, a second force "count area" (hereinafter referred to as a counter) 104 provided 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 to correspond to one character of the ASCII code (step a3).
. 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 is incremented by "+1" (step aS), and steps a4 to a5 are repeated a number of times corresponding to one ASCII code character (step aS). Then, the input] - is 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 this stored content is used as a call sign code through the sign calculation means 113. Display 114
(step aS). Next, the second counter 104 is incremented by "→-1" (step a9), and step a3-89 is repeated the number of times corresponding to the call-nine digit (step a1o). In step atj the second
When the count value of the counter 104 reaches a value corresponding to the number of digits of the call sign, the call sign code storage area 1
07, the call sign code is completely stored, and a flag is set in the call sign code setting state storage area 108 provided in the RAM 83 (step a).
11). 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, the code selection means 101 selects to set a group code.

stomach. Ka, 8 Yu, more. , Yugatsua. , 3. .
□゛i In this embodiment, the group code is the 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 a13, if it is selected to set the group code, the third counter 105 that is set in the RAM 83 and counts the number of digits of the group code is cleared (step axq>) The group code is the group code (
A) is detected (step aSS>). When it is detected in step ai5 that the group code (A) is selected, the input code is stored in the RAM 83 as 64.
is loaded into the first group code storage area 109 (step a16), and the third counter 105 is set to II +
I II (step ax7), and the set group code (A> is displayed on the data display 112 via the data display selection means 111 (step a18). Following step a111, the count of the third counter 105 is Steps 8.16 to ata are repeated until the numerical value reaches the number of digits of the group code, and when the counted value of the third counter 105 reaches the number of digits of the group code (step aIS), step alB is executed next. Therefore, the group code (A) set in the first group code storage area 109 is stored.

Step atS Smell (If the selected group code is not the group code (Δ), it is the group code (B), in this case, following step a15, steps ale to a
Steps 820-a2a similar to Ig are performed. As a result, the group code (B) set in the second At code storage area 110 provided in the RAM 83 is stored.

In step a13, if writing the group code setting is not selected, it is detected whether the group code (A) has been selected by the group code selection means 115 to be used for standby (step a13). 824). When the group code (A) is selected by the group code selection means 115, the group code (A) is stored in the first group code storage area 109.
It is detected whether it is stored in (step a25).

In step a25, the first group code storage area 10
When group code (A) is stored in 9, RAM83
Group code provided in (A>Selection permission storage area 11
6 is set (step azs), and the group code (A) set to ° is displayed on the data display 112 with a specific display such as a decimal point (step a27). B) It is detected whether the carrier is selected for use by the group code selection means 115 (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 82B is executed following steps p2+ and a2s.

When the group code (B) is selected in step a28, it is detected whether the group code ([3>) is stored in the second group code storage area 110, as in step a25 (step a29).

In step a29, the second group code storage area 11
When the group code (E3) is stored in 0, RAM8
A flag is set in the group code (B) selection permission storage area 117 provided in the group code (B) (step a3o), and the group code (B) set in the data display 112 is displayed with a specific display such as a decimal point. ) is displayed (
Step a3t). It will also be clear from steps a24 to a3D that both groups (A) and (B) can be left selected.

Following step a31, a calling routine is executed.

Further, when the group code (B) is not selected in step 82B, the group code (,B) is selected in step 829.
) is not set, step a2.8, 82
Following step 9, a calling routine is executed.

As is clear from the above, the call return code, ? Group codes (A>, , (B)) can be set.
□ Even if the f group codes (A) and (B) are set and stored, if they are not selected in steps a24 and a2'8, the standby mode is not used.

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 b,
When the system operating state setting means 118 is set in step bt, it is detected whether the call setting means 119 is set (step b2). In step b2, if the call setting means 119 has not set the call routine, 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 b3>).

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.

If the call sign is set at step b3, the mute means 120 is activated in step B'! In other words, the mute-on state is set (step b4). In step b4, Micoaing is applied, so when searching for a free line,
will be in a state of trust, but the audio will be 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. In step b5, the line-connected caller enters the state of re-calling, which will be described later, and this calls for at least one calling routine.
There may be cases where the condition is reached by repeating the rotation.

When the line is not connected in step b5, the frequency data set in the RAM 83 and stored in the frequency data storage area 122 is stored in the RAM 83.
A start channel data storage area (hereinafter referred to as S channel data storage area) provided in 123
(step bs). Note that, in the frequency data storage area 122, the frequency data setter 1, which includes a 0-tary encoder or the like, is stored in the frequency data storage area 122, in which the frequency data negotiated with the communicating party before step b5 is stored in the frequency data storage area 122.
24, and this setting data is stored in the frequency data storage area 122.

Following step b6, the standby state is prohibited (step b7). The standby state is inhibited by resetting the flag in the standby 1 state storage area 125 provided in the RAM 83. 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 displaying light, an empty channel may be displayed by an audio display (for example, a beep sound).

In addition, frequency data set in advance in the f1 data storage area 127 and f2 data storage area 128 provided in the RAM 83, for example, a priority selection state in which il, (2 and 5 are selected as communication channels) It is detected whether the setting means 129 is set (step b9
). When the priority selection state is set in step b9, frequency data f1 is loaded into the frequency data storage area 12°2 (step blo), and il and 15 of the first timer 130 are started (step brt).
. 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 "i" (when transmitting) are set. Following step bti, the frequency data corresponding to the 11 frequency data loaded in the frequency data storage area 122 is set. The empty channel detection means 132 comprising the comparator 39 detects whether the frequency of the received signal is below a predetermined level (step b12), and the received signal level continues to be below the predetermined level for the period set by the first timer 130. In step b13, the first timer 13 detects that the level of the received signal input to step b12 is below a predetermined level.
If the set time of 0 continues, it is determined that the frequency corresponding to the 11 frequency data is an idle line, and step b27, which will be described later, is executed.

Further, the first timer 1 indicates that the received signal level exceeds a predetermined level in step b12, or that the received signal level is below a predetermined level in step b13.
If the setting time of 30 does not continue, please proceed to step b12.
Next, the frequency data f2 is loaded into the frequency data storage area 122 (step b14), and the first timer 130 starts counting (step b15). Following step bts, it is detected whether the received signal of the frequency corresponding to the 12 frequency data loaded in the frequency data storage area 122 is below a predetermined level (step I) t
s>, 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 bz 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, the island is set to 1.
The frequency corresponding to the 2-frequency data is determined to be an empty line, and Stellar b27, which will be described later, is executed. In addition, if the received signal level exceeds the predetermined level in step b16, or if the received signal level does not continue to be below the predetermined level in step b17 for the set time of the first timer 130, a random signal is sent after step b16. The frequency data generated by the frequency generating means 133 is loaded into the frequency data storage area 122 (step baa), and then the frequency data stored in the frequency data storage area 122 is increased (step bt9).
a If the priority selection state setting means 129 is not set in step b9, step b1'8 is executed following step b9. In this case, the frequency data that should be prioritized is not selected.

Following step br'c+, frequency data such as f3. Call f4 1. It is detected whether the selection/exclusion state setting means 134 for excluding selection as a channel is set (step b2o). step b
If the selection exclusion state is set in step 20,
The frequency 4 is determined by how much the frequency data stored in the frequency data storage area 122 matches the frequency data f3.
It is detected by the numerical data comparison means 138 (step b21). If the frequency data stored in the frequency data storage area 122 is not the frequency data f3 in step b21, it is then similarly detected whether it matches the frequency data f4 (step 1).
)22). 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 provided in the RAM 83 in step b22. It is detected whether the frequency is within the amateur band stored in the set range frequency data storage area 135 (step b23). Step b via steps b21 to b22
When step 23 is executed, the frequency data stored in the frequency data storage area 122 in step b1g does not correspond to the frequency to be selectively excluded.

In step b2 [1, selection exclusion state setting means 134
is not set, step b 2' OK
M 'v' T 7. If T y 7' b 23 is 7 rows 6.0 ・a, selection/exclusion is overridden and no determination is made as to whether it is frequency data.

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), it is then detected whether the received signal level is below a predetermined level (step b2!i), and the first timer 130 is set to indicate that the received signal level is below the predetermined level. It is detected whether the time has continued (step 26). If in step b26 the received signal level continues to be below the predetermined level for the set time of the first timer 130, in step b1.9 the frequency corresponding to the frequency data stored in the frequency data storage area 122 is It will be. Also, the frequency data stored in the frequency data storage area 122 next to the sub-7 tube b26 is stored in the RAM 8.
Empty channel data storage area 136 provided within 3
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 b28).

Here, when step b28 is executed through step blB or step b17, what is stored in the empty channel data storage area 136 is frequency data f1 or f-2, and step b2B is executed through steps b20''-b27. When the frequency γ−1 stored in the empty channel data storage area 136 is not the frequency data f3° f4, the line connection is not made when step [)28 is executed through step b5. In this state, the frequency data stored in the S channel data storage area 123 is loaded into the frequency data storage area 122 again in step b21], which means re-calling.

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 b3a).

In step b30, when the PTT switch 14 is turned off, and in step b29, when the received signal level is below a predetermined level, the search for an empty channel is completed and the empty channel search indicator 126 is turned off as an IC (step b31). ). Here, when step b31 is executed via step b3G, the received signal level is higher than the predetermined value, but the call is forced to be made. Note that 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 in b2B matches the frequency data f3, when it matches the frequency data j4, when it corresponds to a frequency outside Amachu, II Abanodo, step b
2s, when the received signal level exceeds the predetermined level, steps b21゜b22, b2:l, b
,, 5, it is detected whether the PTT switch 14 is in the on state (step b32), and 1) if the T switch 14 is not in the off state, it is detected whether the slot switch 139 is in the on state (step b33>). [Reset at step b3] When the 13 switches are in the OFF state, step b19 is executed following step b33.

When the PTT switch 14 is in the on state in step b32, the reset switch 13 is turned on in step b33.
9 is in the off state, this means that an instruction is given to stop the call, and step b32. S after b33
The frequency γ-value stored in the channel data storage 1 rear 123 is loaded into the frequency γ-data storage 122 (step b34), and step bst, which will be described later, is executed. In step b3o, the PTT switch 14
is not on, step b30 is performed.
), 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 b29.
will be implemented. When the reset switch 139 is in the OFF state in step b35, it is a case where an instruction is given to stop the call, and step b3s is followed by J, which will be described later.
Step b51 is executed.

Following step b31, the frequency data stored in the empty V/channel data storage area 136 is encoded by the output data encoding means 141 (step b36).
Then, the group code (A) selected by the code selection means 101 is loaded into the output data encoding means 141 (step b37), and the call sequence data stored in the calli-in code storage area 107 is output data encoded. loaded into means 141 (step b'8). The loaded data is then encoded into, for example, Hagelberger code in the output data encoding means 141 (step b39).
. Therefore, in step b37, the call sign code, group code and empty channel frequency data are encoded.

Following step b39, the transmitter section 2 is set to the data transmitting state, that is, the output obtained by converting the output of the output encoder 141 by the parallel/serial converter 40 is guided to the transmitter (step bso), and the communication device transmits/receives ( 5. The switching means 6 is set to the transmitting state (step b++), and then the synchronous data generator 144 generates l!l Jul data is transmitted (step b+2>, , step b42, and step b3El). The encoded output data is then sent 11 (step b4).
3). Therefore, in executing step 1) 43, a so-called call is made by modulating the frequency corresponding to the S channel frequency data with the data containing the empty channel frequency data.

Following step b43, the transmission state 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). The stored frequency data is loaded into the frequency data storage area 122 (step b46). Therefore, the communication device is now set to the searched empty channel receiving frequency and is set to receive transmissions from the other party. Following step b46, the frequency corresponding to the frequency '1 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 b48, it is assumed that the transmitting side has unilaterally established 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 at ii1 o'clock (step bso). 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 b511, 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 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 b51, the standby state storage area 125
flag is set, and the standby state is disabled (
Step b52), then code squelch setting means 15
It is detected whether the code squelch is set to 0 (step b53). If the code squelch is not set in step bs3, step b
Following s3, muting by the muting means 120 is canceled (step bs4), and a transmission/reception routine is executed. In this state, reception of the frequency corresponding to the empty channel frequency data can be performed (i).If the code squelch is set in step b53, the code squelch indicator 151 is lit in step b53 ( Step b56) The transmitting/receiving routine is then executed.In this - state, the muted state is maintained, so reception 8 cannot be performed.

Further, when step b51 is executed after step b34 and step b35, step b2G'b50
．． This is a state in which steps b31 to b50 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 in the on state, it is detected whether the code squelch setting is disabled (step c2),
When the code squelch is set in step 02, the hood squelch setting is canceled (step C3), the hood squelch indicator 151 is then turned off (step C4), and the muting by the muting means 120 is canceled (step C3). aS) After that, the transmission/reception routine ends and the process returns to the start.

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

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

In step C6, the system operating state setting means 118
If not set, the transmission state is set (step C7), and then it is detected whether the P and TT switches 14 are on (step Cs). When the PTT switch 14 is in the on state in step C8, step c7 is executed. Therefore, when the PTT switch 14 is in the on state in step C6, the PTT switch 14 is in the on state in step c8.
Transmission continues until the TT switch 14 is turned off. In this case, the transmission is not performed under system operating conditions, but is performed by a conventional Amachicore wireless communication device. When the PTT switch 14 is in the off state in step c8, the transmission (51) state is canceled (step C9), 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 1 provided within ~138
52 and corresponding to a frequency outside the amateur band is loaded into the output horn data encoding means 141 in place of the frequency data stored in the empty channel data storage area 136 (step Cl0). ), then the group code (A) is loaded into the output data encoding means 141 and <step'
C1t), and call code storage area 1
The call I nine data stored in 07 is loaded into the output data encoding means 141 (step Cl2
) and is encoded by the output data encoding means 141 (step C13).

Following step C13, the transmitting unit 2 is set to a data transmitting state (step Cl4), the communication device is set to a transmitting state (step C1'5), synchronous data is transmitted (step C+s), and then to step C13. The output data encoded in step d5 is transmitted (step c1
7). Upon completion of this transmission, the data transmission state is released (step Crg). The frequency data that was previously set in the specific frequency data storage area 152 by the slots C1O-C17 is encoded instead of the empty channel data, and the corresponding frequency corresponds to the frequency data stored in the frequency data storage area. It will be sent in When the other party receives this transmission, the code squelch is canceled as will be described later.

Transmission becomes possible upon completion of step 0111.

Following step C18, the second timer 153(7)
ttlis,,,,9F32;h□Yuga7a. 1. ,.

? Following step 019, PTT switch 14
It is detected and output whether the PT is off (step 02G >, PT
When the T switch 14 is not in the off state, the second timer 1
53 set time has elapsed (step C21).
). In step C2+, when the set time of the second timer 153 has elapsed, the data transmission state is set as in step C14 (step C22>), synchronized data is transmitted (step 023), and the process proceeds to step b36. Output data obtained by encoding the frequency data stored in the channel data storage area 152 as empty channel data is transmitted (step C24), the data transmission state is canceled (step C25), and the third timer 147 starts timing. (Step 026), and then Step C19 is executed again. Therefore, C19~
G26 causes the transmission to be 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 026, and li'f R of the third timer 147 is newly repeated.

When the PTT switch 14 is in the OFF state in step 020, there is no intention to communicate, and following step C2G, output data is transmitted in the same manner as in steps C22 to C2S (steps 027 to 030).
Then, the transmission state is released (step C31), the third timer 147 starts counting (step C32), the transmission and reception routine is completed, and the process returns to the start again. The steps from step c2 to step C32 are the transmission routine.

When the PTT switch 14 is off 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 at step 033, that is, when the line is connected, it is detected whether the reset switch 139 is turned on (step C34).
), if the reset switch 139 is off, that is, not reset in step C34, step C3
In step C35, it is detected whether there is input data (step caIs>). As described above, in this embodiment, the input data 115 is normally in the transmitting state. When received, the incoming horn data is converted into parallel data by the serial/parallel converting means 42 in step C35, and the input data decoding means 1
55 (step 036), and the group code (A
) is selected (step C37), and if group code (A) is selected, the group code in the input data is 11 yen.

The code comparing means 156 detects whether the code matches the code (A>) (step c38).

Unless the group code (A) is selected in step C7, if the group code in the input data does not match the group code (A) by -1 in step C38,
In steps C37 and C38, it is detected whether the group code (B) is selected (step C39).
), If decode 13) is selected, it is detected whether the group code in the input code matches the group code (B) (step C4D). When the group code (B) is not selected in step 039,

If the group code in the input data does not match the group code (,B) in step C40, step 039.0
411, it is detected whether the set time of the third timer 47 has elapsed (step C41). Also step C
When there is no input data at the BS, step C41 is executed following step C35. Step 037~
As is clear from C4'O, the holding is carried out in the group code (A) and <8).

Therefore, when a reset instruction is not given and the group code in the input data does not match the group code in the selected state, the set time of the third timer 47 is set. If the time has elapsed, muting is performed by the muting means [gi 120 (step C4).
2). Following step C4j, the frequency data stored in the S channel data storage area 123 is loaded into the frequency data storage area 122, and the communication device loads the data stored in the S channel data storage area 123 from the reception state of the empty channel frequency. (S channel data negotiated with the other party in step b6). Next, it is detected whether the code squelch is set (step C44), and if the code squelch is not set, the code squelch by the mu 1 means 120 is canceled (
Step C45), and the flag in the line connection storage area 121 is reset (Step C46). Step C44
When =1-do squelch is set in step C44, step 046 is executed. Following step C41i, 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 and a zunanech reset instruction is issued in step C34, step 046 is executed following steps c3 and c4.

When the flag in the line connection storage area 121 is reset in step CL3, it is detected whether the reverse state setting means 148 is set (step CL3).
76). If the group code in the input data matches the group code (A) in step C38, step C411
If the group code in the input data matches the group code (B) in step C38, 04 (l), the third timer 147 starts counting (step c75), and then step C75 is executed. The third timer is reset by the start of timing at C75, and timing starts again from the beginning.

When the reverse state setting means 148 is set in step 076, the state of the flag in the reverse state storage area 149 is detected (step 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 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 Step C5o), Steps 04B and C50, the state of the flag in the reverse state memory 136 is reversed (Step C51). When the flag in the reverse state storage area is reset in step 048, 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. and step 049. By executing C50, the storage contents of the frequency data storage area 122 are replaced with the empty channel data and the S channel data. If the other party does not appear, it can be detected whether the frequency has returned to the one corresponding to the S channel data. Maiko, step C5
1, the storage contents of the frequency data storage area 122 (
The contents of the reverse state storage area 149 are set to a state corresponding to empty channel data or S channel data.

Following step CSt, it is detected whether there is input data (step 7C52), and if there is no input data, the transmission/reception routine is ended and the routine is returned to the start. Step C7
6, if the reverse state setting means 148 is not set, step C76 is followed by step C52.
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 Cs4), and the group code (A) is selected. When C is selected, the group code in the input data is group code (A).
It is detected whether it matches (step C55). In step CSS, if the group code in the input data matches the group code (A) at f, the data display means 1
The group code (A) is displayed at 12 (step Cs5),
Next, it is detected whether the system is set to the operating state (step 0ss). In step C54, the group code (A> is selected and the U%
), if the group code in the input data does not match the group code (A) in step C55, step C54, C! It is detected whether group code (B) is selected after i5 (step Cs5),
When the group code (B) is selected, it is detected whether the group code in the input data matches the group code (B) (step C57). If the group code in the input data matches the group code (B) in step C57, the group code (B) is displayed on the data display 112 following step 057 (step C59), and step C5
6,057, step C60 is executed. Step O56.

Unless the group code (B) is selected in step 057, if the group]-code in the input data does not match the group code (B), the transmission/reception routine is ended and restarted at steps C56 and C57. be returned. .

In step CSa, when the system is set to the operating state, it is detected in step C611 whether the frequency corresponding to the empty channel data in the input data is a frequency within the amateur band (step C61).
). In step 061, if the frequency J corresponding to the empty channel data in the human data is not a frequency within the amateur band, the transmission/reception routine is ended in step C[il, and the process returns to star 1- again.

In step C61, if the frequency corresponding to the empty channel data in the input data is within the amateur band, the empty channel data in the input data is RA
It is detected whether the 15 frequency data corresponding to the frequencies provided in the M83 and not drawn into the reception state match the frequency data in the f5 data storage area (not shown) (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 terminated and returned to the start.

If the flag of the C line connection storage area 121 is reset in step 063, the frequency data of the frequency data storage area 122 is not loaded into the S channel data storage area 123.Step C64 ), then empty channel frequency data in the input data is stored in frequency data storage area 1.
22 (step C65). As a result, it will be drawn into the frequency corresponding to the empty channel data in the human input data. Following step CSS, the call number in the input data is displayed on the data display 112 (
Step C66).

Following step C66, the reverse state storage area 14
Step C67) to reset the flag 9, step C67) to set the flag 7 in the line connection storage area 121, step C'rs e), the third timer 14.
7 is started (step C6B).

Further, following step 06!1, it is detected whether the code squelch is set (step C711), and if the code squelch is not set, the transmission/reception routine is ended and the process returns 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 C60, following step C60,
It is detected whether the frequency data in the input data is specific data (step C71), and if it is specific data, step C7fl is executed after step C71, and if it is not specific data, the transmission/reception routine is ended and the process returns to the start again. It will be done.

If the code squelch is set in step C70, the code squelch is canceled (step C7
2) The code squelch indicator 151 is turned off (step 073), the muting by the muting means 120 is canceled (step C74), and then the transmission/reception routine is ended and the process returns to the start.

Therefore, when receiving code squelch, if there is input data, the group code matches the transmitted group code, the system is not in an operating state, and the empty channel frequency data in the input data is specific data, There is input data, the group code matches the transmitted group code, the system is in operating condition, and the frequency corresponding to the empty channel frequency data in the input data is 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 033 to G74 to C71i are a reception routine.

Further, in FIG. 3, reference numeral 157 indicates a frequency data control means for performing frequency-related control, 158 indicates a calling operation control means for performing ill elf in the calling operation routine, and 159 indicates a data output time. Data output & IJ that controls output data encoding etc.
160 indicates data input control means for controlling the decoding of input data when data is input.

In one embodiment of the present invention, step b5 includes
When the line connection is established, the search for an empty channel is omitted, steps b5 to b211 are executed, and the previous oscillation 11. i call will be made at the oscillation frequency of X.

(Effects of the Invention) As explained above, according to the present invention, an empty call channel can be automatically set as a call channel. Further, the call instruction means can also be used as an instruction means for re-calling, and no special re-call instruction means is required.

[Brief explanation of drawings]

FIG. 1 is a functional block diagram showing the configuration of the present invention. FIG. 2 is a block diagram showing one embodiment of the present invention. FIG. 3 is a functional block diagram 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... Calling instruction means,
17... Empty channel search means, 18... Channel formation detection means, 19... Switch 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 comprising a frequency synthesizer that acts as a carrier wave oscillator when transmitting and a local oscillator when receiving, and a push-to-talk switch, a first memory that stores a transmission frequency when a call is made. means, and second storage means for storing frequency data;
a group code storage means for storing a group code; an output data generation means for generating output data corresponding to the stored group code of the group code storage means and the stored frequency data of the second storage means; and a storage of the group code storage means. a group code comparing means for detecting a match between the group code and the group code in the received input data; a calling instruction means for supporting the calling; and an empty communication channel searching for an empty communication channel in response to the output of the calling instruction means. The frequency data outputted from the channel searching means and the frequency data in the input data are supplied to the empty channel searching means, and the frequency data of the former is received by the empty channel detection output of the empty channel searching means, and the frequency data of the former is sent to the detection output of the group code comparing means. a first selection means for selecting and outputting the latter frequency data, a switch means for guiding the output frequency data of the first selection means to a second storage means, and a communication partner receiving the output of the calling instruction means. channel forming means for detecting that a communication channel is formed and controlling the switch means to an open state using a detection output; a second selecting means for selecting the stored frequency data and, after the predetermined period has elapsed, selecting the stored frequency data in the second storage means and supplying it to the frequency synthesizer as output frequency setting data; and an empty call channel of the empty channel searching means. the predetermined period from the time when the detection output is generated or from the time when the channel formation detection output is generated by the channel forming means;
or transmitting/receiving switching means for switching the communication device from the receiving side to the transmitting side while the output of the push-to-talk switch is being generated;
Modulation signal switching means for switching the modulation signal from the microphone output side to the output data side of the output data generation means for a predetermined period from the time when the empty channel search means generates the idle communication channel detection output or from the time when the channel formation means generates the channel formation detection output. An amateur radio communication device characterized by comprising: