JPH0638581B2 - wireless device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio device, and more particularly, to a radio device capable of easily performing satellite-satellite communication using an Earth-orbiting satellite of an inverse heterodyne system.

[Problems to be Solved by Prior Art and Invention]

Analog mode relay with earth orbiting amateur radio satellites employing the inverse heterodyne system to reduce the Doppler shift, when the satellite receiver frequency is F _IN, to a satellite frequency F _SAT which is predetermined in each satellite, F _OUT = Saturation is transmitted from the satellite at the transmission frequency F _{OUT according} to the relational expression of F _SAT -F _IN .

F _SAT is 581.8 MHz in the case of FO-12, for example.

Therefore, when communicating with the partner station via the satellite, the uplink and downlink bands are different, so
Two transceivers are prepared, one for transmission only for uplink and the other for reception only for downlink.

Then, the frequency of the receiving device is changed, and when the signal of the partner station from the satellite is received, the variable is stopped and the transmission frequency (uplink frequency) for satellite communication corresponding to the reception frequency (downlink frequency) at that time Calculate with a calculator.

Next, set the transmitting device to the calculated transmission frequency, perform trial transmission, and adjust the transmission frequency so that the receiving device can receive the signal of your station returning from the satellite (loop test). .

After adjusting, communicate with the partner station.

If the signal frequency of the other station shifts due to the Doppler shift accompanying satellite movement, the reception frequency is changed and corrected, and when transmitting by yourself, the signal of your station is received by the receiving device with the reception frequency correction canceled. The transmission frequency is changed so that it can be received, and the Doppler shift that occurs when the other station receives it is suppressed.

As described above, satellite communication using the Earth-orbiting satellite that employs the reverse heterodyne system requires multiple steps to be operated, and in the case of the Earth-orbiting satellite, communication time is limited. There was a problem that it was difficult to establish.

In view of the above-mentioned problems of the prior art, the present invention aims to provide a radio device capable of facilitating a transmission / reception frequency setting operation at the time of performing satellite communication using an earth-orbiting satellite adopting an inverse heterodyne system. And

Another object of the present invention is to provide a wireless device that can easily perform the operation required for Doppler shift countermeasures.

[Means for Solving the Problems]

FIG. 1 is a block diagram of a radio device according to the present invention.
Reference numeral 400 is a transmission unit that transmits a signal at a corresponding transmission frequency according to the transmission frequency control data, 402 is a reception unit that receives a signal at a corresponding reception frequency according to the reception frequency control data, and 408 is a frequency variable that performs a frequency variable operation. Operation means, 404 is an operation transmission frequency storage means for storing operation transmission frequency data, 406 is an operation reception frequency storage means for storing operation reception frequency data, and 410 is an operation in which the frequency is changed according to the transmission frequency changing operation by the frequency changing operation means. Transmission frequency data is set in the operation transmission frequency storage means, and transmission / reception frequency setting means 412 is set in the operation reception frequency storage means for setting the operation reception frequency data in which the frequency is changed according to the reception frequency changing operation by the frequency changing operation means. Based on received frequency data Based on transmitted frequency control data Transmission frequency control means 414 for generating transmission frequency control data, reception frequency control means 414 for generating reception frequency control data on the basis of operating reception frequency data, and 416 for uplink frequency and downlink frequency of a reverse heterodyne communication satellite. A satellite frequency storage unit 418 for rewritably storing a plurality of summed satellite frequency data for each channel, a channel designation operation unit 418 for designating a writing channel of the satellite frequency storage unit and a calling channel.
Is a satellite frequency data input operation means for inputting arbitrary satellite frequency data, and 422 is a satellite frequency data input by the satellite frequency data input means, which is designated by a channel designation operation means in the satellite frequency storage means. Satellite frequency data writing means for writing in the channel, 42
Reference numeral 4 is a satellite communication mode setting operation means for setting the satellite communication mode, and 426 is an operation stored in the transmission frequency storage means when the satellite communication mode is set by the operation of the satellite communication mode setting operation means. Operate from the satellite frequency based on the transmission frequency data (or the operation reception frequency data stored in the operation reception frequency storage means) and the satellite frequency data stored in the calling channel designated by the channel designation operation means in the satellite frequency storage means. Operation reception frequency (or operation transmission frequency) is calculated by subtracting transmission frequency (or operation reception frequency), and operation reception frequency data stored in operation reception frequency storage means (or operation transmission stored in operation transmission frequency storage means) It is a frequency changing means for changing frequency data).

[Action]

When the write channel is designated by the channel designating operation means 418 and the satellite frequency data relating to the desired reverse heterodyne type communication satellite is inputted by the satellite frequency data input operating means 420, the satellite frequency data writing means 422 receives the inputted satellite frequency. The data is stored in the satellite frequency storage means 416.
Write to the designated write channel among the plurality of channels.

In this way, in a state where different satellite frequency data is stored in advance in each channel of the satellite frequency storage means 416, the call channel related to the desired reverse heterodyne communication satellite formed by the channel designation operation means 418 is designated, The transmission frequency (or reception frequency) is variably manipulated by the frequency varying operation means 408 to variably set the operation transmission frequency data of the operation transmission frequency storage means 404 (or the operation reception frequency data of the operation reception frequency storage means 406). The transmission frequency of the transmission means 400 (or the reception means 402)
When the satellite communication mode setting operation means 424 sets the satellite communication mode to the satellite communication mode after the reception frequency of the above is within the usable transmission band (usable reception band) for the desired satellite, the frequency changing means 426 causes the operating transmission frequency data to be transmitted. (Or operation reception frequency data) so that the sum of the operation reception frequency data and the desired reception satellite frequency is the satellite frequency of the desired communication satellite.
The operating reception frequency data stored in 06 (or the operating transmission frequency data stored in the operating transmission frequency storage unit 404) is automatically changed.

Further, as shown in FIG. 2 (in FIG. 2, the same components as those in FIG. 1 are omitted), the transmission / reception frequency simultaneous variable mode setting / cancelling operation means for performing the transmission / reception frequency simultaneous variable mode setting / cancelling operation. When the transmission / reception frequency simultaneous variable mode is set, the transmission / reception frequency setting means 410A is provided with 428 and is stored in the operation transmission frequency storage means 404 in accordance with the variable operation of the transmission frequency (or the reception frequency) by the frequency variable operation means 408. The operating transmission frequency data (or the operating reception frequency data stored in the operating reception frequency storage unit 406) is variably set, and at the same time, the operating reception frequency data (or the operating transmission frequency storage stored in the operating reception frequency storage unit 406). The operation transmission frequency data stored in the means 404 is added to the operation transmission frequency data (operation reception frequency data). In configured to variably set so as to maintain the relationship of constant, the sum of the operating reception frequency and operating transmission frequency matches the satellite frequency of the desired communications satellite state,
Transmission / reception frequency simultaneous variable mode setting / cancellation operation means 428
When the transmission / reception frequency simultaneous variable mode is set by, and the transmission frequency (or reception frequency) is changed by the frequency changing operation unit 408, the operation frequency (or operation reception frequency) is variably set according to the change operation, and at the same time, The operating reception frequency (or operating transmission frequency) is automatically variably set so that the sum of the operating transmission frequency (or operating reception frequency) remains the same as the satellite frequency of the desired satellite.

Further, as shown in FIG. 3 (in FIG. 3, the same components as those in FIG. 1 are omitted), the RIT adjustment operating means 430 for finely adjusting the reception frequency and the RIT adjustment operating means 4 are performed.
RIT data creation means 432 for creating RIT data according to the operation of 30, transmission instruction operation means 434 for performing a transmission instruction operation at the time of transmission, and operating reception frequency storage when transmission is instructed by the transmission instruction operation means 434. Means 406
The operation reception frequency data stored in the operation reception frequency data is directly output to the reception frequency control means 414, and when the transmission instruction operation means 434 does not instruct the transmission, the operation reception frequency data stored in the operation reception frequency storage means 406 is used as the RIT data. Is added and RIT adjustment means 436 for outputting the addition result as RIT modified operating reception frequency data to the receiving frequency control means 414 is provided, and when the transmission is instructed, the receiving frequency is set as the operating reception frequency without RIT modification, and transmission is performed. Is not instructed, the reception frequency is set to a value corrected by RIT.

[Embodiment] Next, one embodiment of the present invention will be described with reference to FIG.

FIG. 1 is a block diagram of a radio device according to the present invention.

A main-side PLL frequency synthesizer type transmitting / receiving unit (hereinafter, simply referred to as “transmitting / receiving unit”) 12 as a transmitting unit is connected to the antenna 10.

A speaker 14 is connected to the output side of the transmitter / receiver 12, and a yak 16 is connected to the input side.

The transmission / reception unit 12 is a multi-band type and performs band switching to 144 MHz band, 430 MHz band, and 1200 MHz band according to band switching control. In addition, the transmission / reception switching is performed according to the transmission / reception switching control,
At the time of transmission, a predetermined modulation process is performed on an input signal from the microphone 16 or a keypad (not shown), and the modulated radio wave is transmitted to the antenna 10.
Fire from.

On the contrary, at the time of reception, the radio wave caught by the antenna 10 is demodulated and is acoustically output from the speaker 14.

Modulation / demodulation is performed by FM, LSB, and signal mode switching control.
The signal mode is one of USB and CW.

Further, the transmitter / receiver 12 inputs frequency control data and changes the frequency.

A sub-side PLL frequency synthesizer type reception unit (hereinafter, simply referred to as “reception unit”) as a reception means in the antenna 20.
22 is connected.

A speaker 24 is connected to the output side of the receiver 22.

The receiving unit 22 demodulates the radio wave caught by the antenna 20 and outputs the sound from the speaker 24.

Demodulation is FM, LSB, US according to the signal mode switching control
The signal mode is one of B and CW.

This receiving unit 22 is also a multi-band type, and performs band switching to 144 MHz band, 430 MHz band, and 1200 band according to band switching control.

A rotary encoder 32 is coupled to the tuning dial 30 serving as a frequency variable operation member.
When 0 is rotated to the right or left by a predetermined unit amount, the rotary encoder 32 outputs an up pulse or a down pulse.

An up / down counter (hereinafter simply referred to as “U / D counter”) 34 is connected to the output side of the rotary encoder 32.

The U / D counter 34 increments the count value when an up pulse is input, and decrements the count value when a down pulse is input.

When the clear signal is input, the count value becomes zero.

The tuning dial 30, the rotary encoder 32, the U / D counter 34, and an M / S (main / sub) designating key 50 described later constitute a transmission / reception frequency variable operation means.

The RIT knob 36 is connected to the volume 38, and an RIT voltage signal according to the rotation amount of the RIT knob 36 is output.

The RIT knob 36 and the volume 38 constitute RIT adjustment operation means.

An A / D converter 40 as RIT data creating means is connected to the output side of the volume 38, and the RIT voltage signal is A / D converted and output as RIT data.

Turn the RIT knob 36 from the center to the maximum position on the left side to get R
IT data changes in the range of 0 to -1.9 KHz, and conversely changes in the range of 0 to +1.9 KHz when rotated from the center to the maximum position on the right side.

A microcomputer is provided on the input side of the transmission / reception section 12 and the reception section 22, the output side of the U / D counter 34, the A / D coverter 40, and the output side of the PTT and SW18 as transmission instruction means attached to the microphone 16. 42 is connected.

PTT. The SW 18 outputs a switch signal that is "H" level while being turned on and "L" level while being turned off.

The key input unit 4 is provided on the input side of the microcomputer 42.
4. A display unit 46 is connected to the output side.

The key input section 44 has a RIT for turning the RIT on and off.
Key 48, M / S designation key 5 as a transmission / reception designation operation member
0, a main / sub exchange key 51 for exchanging the main side and the sub side, and a signal mode switching key 52, 144MH for switching four signal modes of FM, LSB, USB, and CW
Band switching key 53 for switching between z-band, 430 MHz band and 1200 MHz band, turning on / off the satellite communication mode using the orbiting amateur radio satellite adopting the reverse heterodyne method and turning on the transmission / reception frequency simultaneous variable mode.
SAT that turns off. It has a key 54, an F key 56 used for setting the satellite channel selection mode, an ENT key 58 used for setting the satellite frequency data writing mode, a ten-key pad 60 used for inputting satellite frequency data, and the like for the user's key operation. The corresponding predetermined key signal is output to the microcomputer 42.

Here, the satellite frequency data is data of the sum of the uplink frequency and the downlink frequency in the communication satellite of the reverse heterodyne system.

The display unit 46 has a main-side display device 62, a sub-side display device 64, a <SAT> fixed character display device 66, etc., which are capable of transition display, respectively. And the reception frequency display on the sub side, satellite channel number display, satellite frequency display, satellite communication mode display, etc.

The microcomputer 42 includes a CPU 68, a ROM 70,
A RAM 72 is connected by a bus, and based on a predetermined program stored in the ROM, the user's tuning dial 30, RIT knob 36, PTT. Depending on the SW18 or various key operations, operating frequency variable setting processing for the main side and sub side, frequency variable control processing, band switching control processing, signal mode switching control processing, transmission / reception switching control processing for the main side, PIT adjustment Processing, satellite communication transmission / reception frequency automatic setting processing, satellite communication transmission / reception frequency simultaneous variable setting processing, RIT automatic on / off processing, satellite channel data rewriting processing, display control processing, etc. are executed.

The lower limit frequency data of each band in ROM 70 F _L i and the upper limit frequency data F _U i (where i = 1; 144MHz, 2; 43
0 MHz, 3; 1200 MNz) is stored (see (1) in FIG. 2).

Further, the RAM 72 stores signal iodine data M _M and M _S (FM, LSB, USB, CW) on the main side and the sub side, band data B _M and B _S on the main side and the sub side (1; 144 MHz,
2; 430 MHz, 3; 1200 MHz), operating frequency data VFO (i) for each band, RIT correction operating frequency data VFO (MR) and VFO (SR) on the main side and sub side,
RIT data RITD, count value data CD of U / D counter 34, M / S flag (0; main, 1; sub) indicating designation of main or sub, PTT. SW18 on
PTT flag indicating off (0; off, 1; on), SATE flag indicating on / off of satellite communication mode (0; off,
1; ON), a flag indicating ON / OFF of the function mode (0; OFF, 1; ON), a SAT.Se flag indicating ON / OFF of the satellite channel selection mode (0; OFF, 1;
ON), P flag (0; OFF, 1; ON) indicating ON / OFF of the transmission / reception frequency simultaneous variable mode, CH ENT flag (0; OFF, indicating ON / OFF of the satellite channel writing mode)
Areas for storing RIT flags (0; OFF, 1; ON) indicating ON / OFF of RIT and the like are provided.

Further, the RAM 72 stores a satellite channel memory area for storing satellite frequency data f _sat (n) (n: 0 to 8) for 9 channels, the currently selected satellite channel current number data CH _SAT and the satellite frequency present. Data F
An area for storing the _{SAT and the} like is also provided (see (2) in Fig. 2).

Next, the overall operation of the above embodiment will be described with reference to the flowcharts of FIGS.

It is assumed that the lower limit and upper limit frequency data of each band are written in the ROM 70 in advance.

Further, each data of the RAM 72 has M _M = LSB, M _S = F
M, B _M = 1, B _S = 2, VFO (1) = 144.2000 MH
z, VFO (2) = 433.0800MHz, VFO (3) = 12
65.0000MHz, flag M / S = 0 (main side specified), S
ATE = 0 (satellite reception mode off), f _sat (0) = 581.8000M in the 0th channel of the satellite channel data
It is assumed that Hz (satellite FO-12JA mode) is written and "0" is written in all digits of the satellite frequency data of the first channel to the eighth channel.

Upon power-on, the microcomputer 42 outputs a clear signal to the U / D counter 34 to clear the count value, and PTT, F, SAT.Se, P, CH ENT, RIT in the RAM 72.
Each flag of is also cleared (step 80), and the transmitter / receiver 1
2 performs reception switching control, LSB switching control, 144 MHz band switching control, and FM switching control for the receiving unit 22.
430 MHz band switching control is performed (steps 82 to 86).

Then, the satellite channel selection mode is turned off by referring to the SAT.Se flag, the satellite communication mode is also turned off by referring to the SATE flag, and RI is also referred by referring to the RIT flag.
After confirming that T is off (Step 88-
92), VFO (1) = 144.2000M because B _M = 1 now
Frequency control data on the main side is calculated from the main operating frequency data of Hz and M _M = LSB (step 9
6), then VFO (2) = 433.080 because B _S is currently 2
Frequency control data on the sub side is calculated from the sub operating frequency data of 0 MHz and M _S = FM (step 98), and the frequency control data on the main side is output to the transmission / reception unit 12,
The frequency control data on the sub side is output to the receiving unit 22 (step 100).

As a result, the transmission / reception unit 12 receives the LSB radio wave of 144.2000 MHz, demodulates it, and outputs it as sound from the speaker 14.

Further, when the receiving unit 22 receives the FM radio wave of 433.0800 MKz, the receiving unit 22 demodulates and outputs the sound from the speaker 24.

Subsequently, the microcomputer 42 sets VFO (1) = 144.2000 MHz, which is the transmission frequency on the main side, and VFO (2) = 433.0800M, which is the reception frequency on the sub side.
A display control signal including frequency data of Hz is output to the display unit 46 to display <144.2000 MHz> on the main display 62 and <433.0800 MHz> on the sub display 64 (step 102).

The microcomputer 42 is the A / D converter 4
The current RIT data is read from 0, and R of RAM72 is read.
If there is a change compared to ITD, the read data is used for RI
Rewrite TD (steps 104 to 10 in FIG. 4)
8).

Here, the RIT knob 36 is at the center position,
Shall be rewritten to = 0.

And since B _M is 1, VFO (MR) = 144.2000 + 0
(MHz) and VFO (SR) = 433.0800 + 0
(MHz) (steps 110 to 116).

In addition, the count value is read from the U / D counter 34 and RAM
After rewriting the CD in 72, a clear signal is output and the count value of the U / D counter 34 is set to zero (steps 118 and 119).

However, since CD = 0 here, the microcomputer 4
2 moves to step 121 in FIG. 5 (step 12
0), check the key signal input from the key input section 44,
Determine whether there is a key operation.

If there is no key operation, move to step 122, P
TT. The switch signal input from SW18 is checked to determine whether the switch operation has been performed.

If there is no switch operation, return to step 88 in FIG.
The same process is repeated.

In the process of step 100, the frequency control data is not output when the calculation results of the frequency control data of the previous time and the calculation result of the frequency control data of this time are the same, separately for the main side and the sub side.

Here, when the user wants to make a call in the LSB mode at 144.2000 MHz, the PTT. Turn on the SW 18 and talk to the microphone 16.

PTT. When the SW 18 is turned on, the switch signal changes from the “L” level to the “H” level.

Then, the microcomputer 42 determines in step 122 that there is an operation, confirms that the change of the switch signal is from OFF to ON, and then sets the PTT flag and controls the transmission / reception unit 12 to perform transmission switching. Is performed (steps 124 to 128).

As a result, the transmission / reception unit 12 modulates the audio signal input from the microphone 16 into LSB of 144.2000 MHz, and the antenna 1
Fire from 0.

After calling, the user makes a PTT. When the SW18 is turned off, the switch signal changes from "H" to "L".

Then, the microcomputer 42 returns Y in step 122.
After determining that the status is ES and confirming that the status has changed from on to off (steps 124 and 130), the PTT flag is cleared and reception switching control is performed on the transmission / reception unit 12 (steps 132 and 134).

As a result, if there is a response from the partner station, it can be heard from the speaker 14.

When there is no response from the partner station and it is desired to change the transmission frequency, the tuning dial 30 is turned to the right, for example.

Then, the rotary encoder 32 is rotated so as to rotate by a predetermined unit amount.
An up pulse is output from the U / D counter 34 and the count value of the U / D counter 34 is incremented.

The microcomputer 42 periodically reads the count value of the U / D counter 34 in step 118 of FIG.
Is being rewritten, and if the count value is “5” due to the frequency variable operation of the user, for example, step 120
It is determined to be NO, the satellite channel selection mode is turned off with reference to the SAT.Se flag, and the transmission / reception frequency simultaneous variable mode is also turned off with reference to the P flag. After confirming that the S flag is 0 and the main side is currently specified, VFO (1) + 0.005 × C
Perform the calculation of D, 144 MHz defined by F _L 1 and F _U 1
Confirm that it does not exceed the band, and calculate the VF
O (1) is rewritten (steps 136 to 146).

As a result, VFO (1) = 144.2250 MHz. Also,
VFO (MR) = VFO (1) + RITD (step 148).

Then, in step 96, the operating frequency is 144.2250 MHz and the LS
Frequency control data corresponding to the B mode is calculated and output to the transmission / reception unit 12 to increase the transmission frequency by 25 kHz (step 100).

At this time, the frequency display on the main side is also increased by 25 kHz (step 102).

Even after the U / D counter 34 has been cleared, the user slightly rotates the tuning dial 30 to the right, and again U / D
The count value of the D counter 34 changes from 0, and step 11
For example, when it is "2" in 8, the microcomputer 42 rewrites the CD to "2" and clears the U / D counter 34 (step 119), and then the VFO.
(1) and VFO (MR) are increased by 10 kHz (steps 120, 136-148).

Then, the transmission frequency of the transmitter / receiver 12 and the main-side display frequency are increased by 10 kHz (steps 96, 100, 10).
2).

If the user stops the operation of the tuning dial 30 after the U / D counter 34 is cleared, the transmission frequency is fixed to the above-mentioned value.

Here, PTT. Turn on SW18 and make a call 14
4.2350MHz LSB radio wave is emitted (step 122
~ 128), if there is a response from the partner station at the same frequency, PT
T. When the SW 18 is turned off, a voice is heard from the speaker 14 (steps 12, 124, 130 to 134).

If the signal frequency of the partner station is slightly deviated from the operating frequency (= transmission frequency) of the transmitter / receiver 12 side, RIT
Turn on the key 48.

When the RIT key 48 is turned on, the microcomputer 42 sets the RIT flag and puts it in the RIT on state (fifth).
Figure; steps 121, 150, 152).

At this time, since it is confirmed in step 92 in FIG. 3 that the RIT is on, the PTT. When SW18 is off and the PTT flag is 0, VFO (MR) and M _M = LS
Frequency control data on the main side is calculated from B (steps 92, 154, 156).

However, before the RIT knob 36 is turned, VFO (MR)
Since = VFO (1), the reception frequency on the main side matches the transmission frequency.

In this state, when the loser rotates the RIT knob 36 from the center to the position of, for example, +0.5 kHz, the output of the A / D converter 40 changes from 0 to +0.5 (kHz).

The microcomputer 42 periodically reads the RIT data from the A / D converter 40 in step 104 in FIG. 4, and if there is a change, rewrites the RITD and VFO.
(MR) and VFO (SR) are changed (step 10)
6-116).

And finally, when RITD becomes +0.5 (kHz), VFO (MR) = 144.2355 MHz, VFO (S
R) = 433.0805 MHz.

Therefore, PTT. When SW18 remains off, the reception frequency on the main side changes from 144.2350MHz to 144.2355MHz (steps 122 to 128, 88 to 92, 15).
4, 156, 98, 100), and finally, the voice can be heard clearly if it matches the signal frequency from the partner station.

Even if the RIT is turned on and the RIT knob 36 is turned, the PTT.
Transmission frequency when SW18 is turned on is 144.2350MH
z (steps 122, 124, 130-1)
34, 88-92, 96, 98, 100), and PT
T. The frequency display on the main side remains the transmission frequency regardless of whether the SW 18 is on or off (step 102).

If the voice of the partner station is still unclear, the RIT knob 36 may be turned again to adjust the reception frequency.

Then, when the user wants to turn off the RIT, the user can
Turn on.

Then, the microcomputer 42 performs steps 121 and 1
It is determined to be YES in 50 and the RIT flag is cleared (step 152).

Therefore, PTT. The reception frequency of the transmitter / receiver 12 when the SW 18 is off is the same as the transmission frequency (steps 92, 9).
6).

While the transmitter / receiver 12 communicates in this way, the receiver 22 on the sub side receives FM at 433.0800 MHz. If there is a calling station for this signal, the speaker 2
You can listen from 4.

If you want to change the reception frequency on the sub side, first, M
/ S key 50 is turned on.

Then, the microcomputer 42 performs steps 121 and 1
When it is determined as YES in 50, the M / S flag is set and the sub-side designation state is set (step 160).

In this state, the tuning dial 30 and the signal mode switching key 5
2. The operation of the band switching key 53 is valid for the sub side.

When the tuning dial 30 is rotated to the left by one unit pressure division, the count value of the U / D counter 34 becomes "-1".

After rewriting the CD to "-1" in step 118, the microcomputer 42 clears the U / D counter 34 (step 119).

And since the M / S flag is 1, VFO (2) + 0.005 × C
Rewrite VFO (2) with the calculation result of D (step 1
20, 136-140, 162-166).

Further, VFO (SR) = VFO (2) + RITD is set (step 168).

Therefore, VFO (2) = 433.0750MHz, VFO (SR)
= 433.0755MHz.

Subsequently, the microcomputer 42 changes the VFO after the change.
Based on (2) and the FM mode, the corresponding frequency control data on the sub side is calculated and output to the receiving unit 22 (steps 88 to 92, 96 to 100 in FIG. 3).

Further, the reception frequency is displayed on the sub side based on VFO (2) (step 102).

As a result, the reception frequency at the reception unit 22 and the sub-side display frequency become 433.0750 MHz, which is decreased by 5 kHz.

Similarly, when the tuning dial 30 is further rotated 7 units to the left, the reception frequency at the reception unit 24 is 433.0400 MH.
z, and if there is a station emitting an FM signal at this frequency, the voice can be heard from the speaker 24.

If you want to respond to this FM receiving station,
The sub switching key 51 is turned on.

Then, the microcomputer 42 first exchanges B _M and B _S to set B _M = 2 and B _S = 1 and switches the main side to the 430 MHz band and the sub side 144 MHz band based on the exchange result (step of FIG. 11). 170 to 176), and M _M and M _S are exchanged to set M _M = FM and M _S = LSB, and the signal mode is switched to the FM mode on the main side and the LSB mode on the sub side based on the exchange result (step 178). ~ 18
4).

In addition, the microcomputer 42 uses VFO (MR) and VF
Replace O (SR) (steps 186-190).

And when RIT off, performs frequency control of the main side according _{VFO (B M) = M M} = FMN and VFO (2), to change the frequency to _{433.0400MHz, FO (B S) =} VFO
(1) and the frequency control on the sub side from M _S = LSB,
Change to 44.2350MHz (Steps 88-92, 9
6-102).

As a result, Judas receives PTT. Turn on SW18 and 433.
A call can be made to the 0400 MHz FM transmitting station.

Further, if the M / S key 50 is turned on to switch the designation to the main side (steps 121, 158, 160), the operating frequency on the main side can be changed by operating the tuning dial 30.

Next, when the user wants to perform satellite communication using, for example, FO-12, first the F key 56 is turned on to select an appropriate satellite frequency, and then SAT. The key 54 is turned on.

When the F key 56 is turned on, the microcomputer 42 first determines YES in steps 121 and 192 of FIG. 5 and sets the F flag (step 194).

Then, SAT. When the key 54 is turned on, after confirming that the F flag is 1 and the SAT.Se flag is 0, the SAT.
The Se flag is set and the satellite channel selection mode is turned on (121, 196 in FIG. 5, step 200 to FIG. 8).
206).

Then, the satellite channel present number data CH _SAT is set to 0, and the satellite frequency data f of the 0th channel is set.
_{The sat} (0) is read and the satellite frequency present data F _{FAT is} rewritten (steps 208 and 210).

As a result, F _SAT = 581.8000 MHz.

In the satellite channel selection mode, the microcomputer 42 confirms that the SAT.Se flag is set in step 88 of FIG. 1 and then outputs a display control signal including CH _SAT data and F _SAT data to the display unit 46. , The main display 62 shows the satellite channel and satellite frequency <0 (ch) 58.
1.8000MHz> (Steps 88, 21
2, 241).

This will allow the user to select the satellite frequency currently selected.
It is 581.8000 MHz, and it can be confirmed that it is for the analog mode of FO-12.

If another satellite frequency is to be used, the tuning dial 30 may be rotated to select another channel.

For example, when the satellite channel selection mode is on and the tuning dial 30 is rotated right by one unit, the count value of the U / D counter 34 becomes "+1", and the microcomputer 42 at step 118 CD = "+ 1". After rewriting to, the count value is cleared (step 119), the CD is not 0 and the SAT.Se flag is set, and the CH ENT flag is cleared, so the CH _SAT WC is incremented to 1 ( Steps 120, 136, 216-22
2), satellite frequency data f _sat (1) of the first channel
_Is read and F _SAT is rewritten (step 224).

As a result, F _SAT = 000.0000 MHz, and the microcomputer 42 displays the main side display at <1 (ch) 000.0000.
MHz> (steps 88, 212, 21
4).

As a result, the first channel is selected.

Similarly, by operating the tuning dial 30, one satellite frequency in the second to eighth channels can be selected.

However, since the satellite frequency data of the first channel to the eighth channel are all digits "0", it is necessary to write correct satellite frequency data in advance when actually using.

Since the satellite frequency data of channel 0 is used here, the F key 56 and SAT. All that is required is to turn on key 54.

Next, the user selects SAT. When the key 54 is turned on, the microcomputer 42 determines YES in steps 121, 196 and 200, confirms that both the F flag and the SAT.Se flag are 1 and then clears the SAT.Se flag to select the satellite channel. Turn off the mode (steps 202, 204, 2)
26).

The microcomputer 42 displays the main display 62.
Is set to <433.0400MHz> and returns to the original main side transmission frequency (steps 88, 90, 92, 96 to 10).
2) Next, in order to set the downlink signal mode (USB) main unit for satellite communication, the user presses the signal mode switching key 52 with the M / S flag set to 0 in advance.
Turn on twice.

When the signal mode switching key 52 is first urged, the microcomputer 42 determines YES in steps 121 and 228, moves to step 230 in FIG. 6, and refers to the M / S flag to switch to main side designation. After confirming that it is set, MM is changed to LSB because M _M = FM, and the transmission / reception unit 12 is controlled to switch to the LSB mode (steps 232 to 236).

Similarly, when the signal mode switching key 52 is turned on for the second time, US
Change to B (steps 121, 228, 230-23)
2, 238, 236).

Next, the tuning dial 30 is turned to the right to change the operating frequency on the main side to the satellite communication assigned frequency in the 430 MHz band.

When the tuning dial 30 is rotated to the right, the count value of the U / D counter 34 changes from 0 to +.
2 reads the U / D counter data, changes VFO (2) and VFO (MR), and sets a new frequency (steps 119, 120, 136 to 148).

Then, the main side frequency control data is calculated based on VFO (2) and M _M = USB, and is output to the transmission / reception unit 12 to increase the reception frequency of the transmission / reception unit 12, and the main side display frequency is also increased. Increase (steps 96-102).

As long as the user is rotating the tuning dial 30, the microcomputer 42 repeats the same processing, for example, when the display week number on the main side enters the satellite communication assigned frequency and catches the call from the partner station, or When calling from the station, the operation of the tuning dial 30 may be stopped when the idle frequency is reached.

At this time, the operating frequency VFO (2) used on the main side = 435.
8700MHz, VFO (MR) = 435.8705MHz.

Then, the user turns on the M / S exchange key 51 to shift the frequency of VFO (2) to the sub side.

Then, the microcomputer 42 performs steps 121, 1
After it is determined YES in 69, B _M by exchanging B _M and B _S
= 1 and B _S = 2, 144M on the main side based on the replacement result
The band is switched to the Hz band and the sub side to the 430 MHz band (steps 170 to 176), and M _M and M _S are exchanged to replace M.
_M = LSB, and M _S = USB, LSB mode main side based on exchange result, signal mode switching sub-side USB mode (step 178 to 184).

In addition, the microcomputer 42 uses VFO (MR) and VF
Replace O (SR) (steps 186-190).

Since the RIT is off, the microcomputer 42 changes the operating frequency on the main side from VFO (B _M ) = VFO (1) and M _M = LSB to 144.2350 MHz,
Change the sub side to 435.8700MHz (Step 88 ~
92, 96-102).

Then, the M / S designation key 50 is turned on, and the M / S flag is set to 1 (steps 121, 158, 160). Next, the user turns on the SAT. Press the key 54.

Then, the microcomputer 42 proceeds to step 121,
After determining YES in 196, the process proceeds to FIG.
The key 54 is changed from off to on, and the F flag is 0.
After the SATE flag is 0 and the satellite communication mode is turned off (steps 200, 20)
2, 240, 242), the M / S flag is 1, and B _S = 2, VFO (M) ′ = F _SAT −VFO (2) is calculated (step 244) and the calculation result is 144 MH.
If the frequency is within the band of z, 430 MHz, or 1200 MHz, the band in which VFO (M) 'enters is determined and B _M is changed. If there is a change in B _M , The band switching control on the main side is performed based on B _M ,
In this case, since B _M remains 1, the band switching control is not performed (steps 246 to 252).

Then rewrite VFO (1) with VFO (M) '145.
9300 MHz (step 254), VFO (M
R) = VFO (1) + RITD = 145.9305 MHz (step 256).

Subsequently, the microcomputer 42 sets the SATE flag to turn on the satellite communication mode, and also sets the P flag to turn on the transmission / reception frequency simultaneous variable mode (step 25).
8) The <SAT> fixed character display device 66 of the display unit 46 is turned on (step 260).

Here, if the user SAT. When you release the key 196,
The microcomputer 42 clears the P flag and turns off the transmission / reception frequency variable mode (step 12
1, 196, 200, 262 to 266), and thereafter, when the user rotates the tuning dial 30, the microcomputer 42 changes only one of the main or sub frequencies designated by the M / S flag. Cannot be performed (steps 118 to 120, 136 to 140, 142
~ 148, or 162-168, 90, 268, 96
, 102, or 270 and 96-102).

In this case, since the M / S flag = 1, the operating frequency changes only on the sub side, and the sum of the operating frequency on the main side deviates from the satellite frequency.

But SAT. When the user operates the tuning dial 30 without releasing the key 54, the P flag remains 1, so that the microcomputer 42 simultaneously sets VFO (1) and VFO (2) to each other according to the rotation amount of the tuning dial 30. The same amount is changed in the opposite direction such as the ascending direction and the descending direction or the descending direction and the ascending direction (step 118).
~ 120, 136, 138, 271, 272-27
6), V interlocking with the change of VFO (1) and VFO (2)
FO (MR) and VFO (SR) are also changed at the same time (step 278).

Then, the frequency of the transmitting / receiving unit 12 and the receiving unit 22 is also changed at the same time by the changed VFO (1) and VFO (2) (steps 88, 90, 268, 96-102, or 270 and 96-102).

Therefore, after the satellite communication mode is set, when the sub-immediate downlink frequency is varied to search for the signal or vacant frequency of the partner station, the main side always uses the uplink frequency whose sum with the sub-side downlink frequency is constant. It is set automatically.

And the operating frequency used on the sub side is, for example, 435.8900 MHz
When the signal of the partner station is caught at the point where the SAT. Release the key 54.

At this time, VFO (SR) = 435.8905 MHz, and the operating frequency used on the main side is 145.9100 MHz.

SAT. When the key 54 is released, the microcomputer 42 determines YES in steps 121 and 19, and clears P because it is a change from on to off to turn off the transmission / reception frequency simultaneous variable mode (steps 200, 262 to 26).
6).

Therefore, when the tuning dial 30 is subsequently operated, only one of the frequencies designated by the M / S flag on the main side or the sub side changes.

Next, in order to perform the loop taste, the user turns on the M / S designation key 50 to change the M / S flag to 0, and PTT. SW
While turning on 18 and clogging microphone 16 experimentally, turn tuning ear 30.

The microcomputer 42 is a PTT. SW18 on and PT
The T flag is set to 1 and transmission switching control is performed on the transmission / reception unit 12 (steps 122 to 128).

In addition, following the operation of the tuning dial 30, VFO (1)
VFO (1) and M _M = LSB while variably setting
The frequency control data is calculated based on the above, and is output to the transmitter / receiver 12 to change the transmission frequency (steps 118 to 1).
20, 136-148, 88, 90, 268, 96-1
00).

At this time, the display frequency on the main side is also changed (step 102).

As a result, the transmission frequency of the own station is changed, and when the link between the satellite and the own station is established, one's voice can be heard from the sub-side speaker 24, and the operation of the tuning dial 30 is stopped there.

At this time, it is assumed that VFO (1) = 145.9150 MHz.

In this state, the call from the partner station may be answered.

If there is a response from the partner station, it is received by the receiving section 22 on the sub side, and a voice can be heard from the speaker 24.

If the signal from the partner station deviates from the reception frequency on the sub side due to the Doppler effect, the RIT key 48 is turned on and the PTT. SW18 should be turned off.

When the RIT key 48 is turned on, the microcomputer 42 inverts the RIT flag to 1 and sets the RIT on state (steps 121, 150, 152).

When the satellite communication mode is on, PTT. SW1
When 8 is turned off, frequency control data on the sub side is calculated based on VFO (SR) and M _S = USB, and is output to the receiving unit 22 (steps 88, 90, 268, 270, 280, 2).
82, 100).

Further, the reception frequency is displayed on the sub side based on VFO (SR) (step 102).

As a result, the reception frequency on the sub side is increased by +0.5 kHz.

When the RIT knob 36 is turned in this state, the VFO is within the range of -1.9 kHz to +1.9 kHz with reference to VFO (2).
(SR) is changed, and the reception frequency on the sub side is also changed.

By rotating the RIT knob 36 in this way, it is possible to cope with the Doppler shift that occurs in the signal from the partner station.

Even when the RIT is on, the user does not receive the PTT. When SW18 is turned on, the microcomputer 42 is VFO
The reception frequency control data on the sub side is calculated based on (2) to control the frequency of the reception unit 22 (steps 88, 9).
0, 268, 96-102).

Therefore, during communication with the other party, PTT. When the switch 18 is turned on, the tuning dial 30 is turned at any time to adjust the transmission frequency so that the voice of the user talking to the microphone 16 can be heard from the sub-side speaker 24. The satellite loop can be maintained, and the Doppler shift when the other station receives from the satellite can be canceled.

When completing the communication and returning to the normal reception state, the user must
T. The key 54 may be turned on.

Then, the microcomputer 42 proceeds to step 121,
After determining YES in 196 and 200, SAT. It is the change of key 54 from off to on, F flag is 0, ST
Confirm that the E flag is 1, clear the SATE flag, turn off the satellite communication mode, and display <SAT on the display unit 46.
The fixed character display 66 of> is also turned off (step 202,
240, 284, 286).

Then, since the microcomputer 42 has the RIT turned on, the PTT. If SW18 is off, VF
The frequency control data on the main side is calculated based on O (MR) and M _M = LSB and is output to the transmission / reception unit 12, so that the reception frequency on the main side is RIT adjusted (step 88,
90, 92, 154, 156, 100).

Further, since the frequency control data on the sub side is calculated based on VFO (2) and M _S = USB and is output to the receiving unit 22,
The reception frequency on the sub side is no longer RIT adjusted (steps 98, 100).

If you want to change the frequency here and perform satellite communication again, SAT. The satellite communication mode is turned on by pressing the key 54, and the SAT. The satellite communication mode is turned on by pressing the key 54, and the SAT. Tuning dial 3 with key 54 held down
0 is turned to change the frequency, and when the desired frequency is reached, the tuning dial 30 is stopped and the SAT. Release the key 54.

When the band switching key 53 is turned on once without performing satellite communication, the main side can be changed to the 430 MHz band.

Microcomputer 42 determines YES in step 121,308, M / S flag is 0, changing to B _M = 0 Since B _M = 1, based on B _M of the changed transmission / reception section 12
The band to the 430 MHz band (steps 310 to 310).
316).

Also, rewrite VFO (MR) = VFO (1) + RITD (step 318).

At this time, since B _S = B _M = 2, the microcomputer 42 proceeds to step 320 (step 31
9), since B _S = 2, B _S = 3, and this time, B _S ≠ B _M, so that the receiving unit 22 is band-switched to the 1200 MHz band according to B _S (steps 322 to 326).

Further, it is rewritten as VFO (SR) = VFO (3) + RITD (step 328).

As a result, since the microcomputer 42 is currently RIT ON, the PTT. When the SW 18 is off, the main side frequency control data is calculated according to VFO (MR) and M _M , and the frequency control is performed by going into and out of the transmitting / receiving unit 12.
Based on (2), the display control signal is output to the display unit 46, and the frequency is displayed on the main display 62 (step 88,
90, 92, 154, 156, 100, 102).

In addition, the frequency control data on the sub side is calculated according to VFO (3) and M _S = USB, the frequency control data is output to the receiving unit 22 to perform frequency control, and the display control signal is output to the display unit 46 based on VFO (3). The sub-side display 64 displays the sub-side reception frequency (steps 98, 100, 102).

The first channel of the satellite channel memory is the satellite AO.
-10 satellite frequency data for B mode 581.0040MHz
To write, first turn on the F key 56, then
SAT. The key 54 is turned on.

The microcomputer 42 sets the F flag when the F key 56 is turned on (steps 121, 192, 194), and SA
T. When the key 54 is turned on, the satellite channel selection mode is once set, and CH _SAT = 0 and F _SAT = 581.8000 MHz are rewritten (steps 121, 196, 200 to 210).

Then, on the main display 62, <0 (ch) 581.8000 MHz
> Is displayed (steps 88, 212, 214).

The user then rotates the tuning dial 30 one unit to the right.

Then, the microcomputer 42 increments CH _SAT to 1 and sets F _SAT to f _sat (1) = 000.0000MH
Rewrite to z and display <1 (ch) 000.00 on the main display 62.
00 MHz> is displayed (steps 118 to 120, 1
36,216-224,88,212,214).

Subsequently, when the user turns on the ENT key 58, the microcomputer 42 determines YES in steps 121 and 228, the SAT.Se flag is 1 and the satellite channel selection mode is currently on, and the CH ENT flag is 0 and the satellite channel writing is performed. After confirming that the input mode is off, set the CH ENT flag to turn on the satellite channel write mode and change all digits of F _SAT to hyphen data "-" (steps 290 to 296 in FIG. 9). ).

At this time, the display state of the main display 62 is <1 (c
h) ……. ...... Changes to MHz> (steps 88, 21)
2, 214).

In this state, use the user attend key 60 to enter "5",
When numerical values are input in the order of “8”, “1”, “0”, “0”, “4”, “0”, the microcomputer 42 is
Data is written as each digit in order from the upper digit of _SAT (steps 121, 298, 300 to 30 in FIG. 10).
4) The display on the main display 62 is also changed (steps 88, 212, 214).

Then, when the user inputs the seventh numerical value “0” and the data of the least significant digit of F _SAT is rewritten, the microcomputer 42 determines in step 304 that the input of all digits has been completed, and the CH ENT flag. Is cleared to turn off the satellite channel write mode, and the SAT.Se flag is cleared to turn off the satellite channel selection mode (step 30).
6).

As a result, the writing of the B-mode satellite frequency data of the satellite AO-10 to the first channel is completed.

At this time, the microcomputer 42 displays the main-side display 6
2 is returned to the original main side transmission frequency display state.

Similarly, F key 56, SAT. Turn on the key 54 and turn the tuning dial 30 to select another channel.
By turning on the NT key 58 and then inputting frequency data with the ten-key pad 60, the frequency data can be written or modified for other channels.

However, even if you do not enter all 7 digits, ENT key 58
When is turned on again, "0" is automatically written in all the remaining digits (steps 121, 288, 292, 308,
310).

According to this embodiment, when satellite communication is performed using an earth-circulating amateur radio satellite that adopts an inverse heterodyne system to reduce the amount of Doppler shift, for example, a desired downlink frequency is transmitted to the receiving unit 22. After setting by manual operation, SAT. When the key 54 is turned on and the satellite communication mode is turned on, the preset frequency corresponding to the downlink frequency is automatically set in the transmitter / receiver 12 by using the predetermined satellite frequency data stored in the RAM 72, and manually operated by a calculator or the like. You can save the trouble of setting by operation.

In addition, SAT. If the tuning dial 30 is turned while the key 54 is kept turned on, the downlink frequency on the receiver 22 side and the uplink frequency on the transmitter / receiver 12 side can be maintained while maintaining the relationship that the sum is always constant at the satellite frequency. It can be changed at the same time, for example, after turning on the satellite communication mode,
When searching for a signal from the other station by varying the reception frequency or searching for a vacant frequency, if you change to the desired reception frequency, the reception frequency and the transmission frequency that forms the loop are automatically set. Therefore, it is possible to save the trouble of recalculating and setting the transmission frequency corresponding to the reception frequency changed by the user's operation, and it is possible to efficiently execute the satellite communication by the Earth-orbiting satellite which can be used only within a limited time.

Also, after the satellite communication mode is turned on, when PIT. Since the downlink frequency is finely adjusted according to the position of the RIT knob 36 when the SW 18 is off, it is possible to cope with the Doppler shift occurring in the signal from the partner station, and moreover, the PTT. When SW18 is turned on, RIT adjustment for the reception frequency is temporarily turned off. At this time, by performing a loop test and changing the uplink frequency so that the loop is completed, the Doppler generated in the signal sent from the satellite to the partner station is generated. The shift can be easily canceled.

Further, the F key 56, SAT. K, 54, ENT key 58
When the satellite channel write mode is set by performing the ON operation in the order of, new satellite frequency data can be written in the satellite channel by using the ten-key pad, and various satellites having different satellite frequencies can be supported.

In the above embodiment, only one tuning dial 30 is provided so that the frequency variable operation can be performed separately for the main side or the sub side according to the designation by the operation of the M / S designation key 50. A dedicated tuning dial may be provided for each side so that the frequency variable operation can be performed independently.

In addition, SAT. After the satellite communication mode is turned on by pressing the key 54, SAT. While the ON / OFF operation of the key 54 is continued, the transmission / reception frequency simultaneous variable mode is turned on. The transmission / reception frequency simultaneous variable mode may be turned on / off by operating a dedicated key different from the key 54.

Furthermore, the transmission / reception unit 1 that can perform transmission by switching between transmission and reception
However, it is also possible to use a transmitting unit capable of transmitting only.

Also, the operating frequency data is changed by 5 KHz by rotating the tuning dial 30 by one unit.
Other frequency steps such as 0 Hz and 20 Hz may be used.

[Advantages of the Invention] According to the radio device of the present invention, when the writing channel is designated by the channel designation operation means and the satellite frequency data relating to the desired reverse heterodyne communication satellite is inputted by the satellite frequency data input operation means, By writing the satellite frequency data input by the satellite frequency data writing means to a designated writing channel among a plurality of channels of the satellite frequency storage means, different satellite frequencies are previously assigned to the respective channels of the satellite frequency storage means. In a state where the data is stored, a calling channel related to a desired reverse heterodyne communication satellite composed of a channel specifying operation means is specified,
Transmission frequency (or reception frequency) with variable frequency operation means
Variably set the operation transmission frequency data of the operation transmission frequency storage means (or the operation reception frequency data of the operation reception frequency storage means), and the transmission frequency of the transmission means (or the reception frequency of the reception means with respect to the desired satellite). After entering the usable transmission band (usable reception band) and setting the satellite communication mode with the satellite communication mode setting operation means, the frequency changing means sets the operating transmission frequency data (or the operating reception frequency data). To automatically change the operational reception frequency data stored in the operational reception frequency storage means (or the operational transmission frequency data stored in the operational transmission frequency storage means) so that the sum becomes the satellite frequency of the desired communication satellite. Therefore, the user is within the usable transmission band (or usable reception band) of the desired reverse heterodyne communication satellite. After performing a variable operation to any operating transmission frequency (or operating reception frequency) to be entered, simply setting the satellite communication mode, the operating reception frequency (or operating reception frequency) forming a loop with the operating transmission frequency (or operating reception frequency). Or, it can be automatically set to the operating transmission frequency), and the initial setting operation of the operating frequency for the reverse heterodyne satellite communication can be performed very easily. It is possible to execute satellite communication using satellites.

Moreover, by operating the channel designation operation means and the satellite frequency data input means, once the satellite frequency data of a plurality of currently available communication satellites is stored in the satellite frequency storage means for each channel, the number of times thereafter is simply increased. , The sum of the transmission frequency and the reception frequency, which is automatically changed when the satellite communication mode is set, is set to the satellite frequency of the desired satellite simply by designating the calling channel corresponding to the desired satellite among the plurality of communication satellites. Therefore, the user does not have to input a multi-digit satellite frequency with a numeric keypad or the like every time the desired satellite is changed, and the operation target when changing a target from one communication satellite to another communication satellite The burden is very small.

Further, even when a new communication satellite becomes available, the satellite frequency of the new communication satellite is written in the empty channel of the satellite frequency storage means or the channel in which the satellite frequency of the satellite that has already become unavailable is stored. Only then, the satellite communication using the new communication satellite can be easily performed by simply specifying the calling channel any number of times.

In addition, when the sum of the operating transmission frequency and the operating reception frequency matches the satellite frequency of the desired communication satellite, set the transmission / reception frequency simultaneous variable mode with the transmission / reception frequency simultaneous variable mode setting / release operation means, and use the frequency variable operation means. When the transmission frequency (or reception frequency) is changed, the operation frequency (or operation reception frequency) is variably set according to the operation, and at the same time the operation transmission frequency (or operation reception frequency) is set.
Since the operation reception frequency (or operation transmission frequency) is automatically variably set so that the sum of and is constant at the satellite frequency of the desired satellite, the signal from the other station is searched for satellite communication. Or, when searching for a vacant frequency, set the satellite communication mode in advance and set the reception frequency simultaneous variable mode with the sum of the transmission frequency and the reception frequency matched with the satellite frequency of the desired communication satellite. The reception frequency can be changed by setting and changing the transmission frequency (or reception frequency), and the reception frequency and the transmission frequency can form a loop. The transmission frequency changed by the user's operation (Or the reception frequency) and the reception frequency (or the transmission frequency) forming a loop can be saved, and the trouble of setting it again can be saved, and it can be used only within a limited time. A star communication can be efficiently performed.

Also, RIT adjustment operating means for performing fine adjustment operation of the reception frequency, RIT data creating means for creating RIT data according to the operation of the RIT adjustment operating means, transmission instruction operating means for performing transmission instruction operation at the time of transmission, and transmission When the transmission is instructed by the instruction operation means, the operation reception frequency data stored in the operation reception frequency storage means is directly output to the reception frequency control means, and when the transmission instruction operation means does not instruct the operation reception The RIT data is added to the stored operational reception frequency data stored in the frequency storage means, and the addition result is R
RIT adjustment means for outputting to the reception frequency control means as the IT correction operation reception fraction data is provided, and when the transmission is instructed, the reception frequency is the operation reception frequency without RIT correction, and when the transmission is not instructed, Since the reception frequency is set to the value corrected by RIT, the Doppler shift of the signal from the partner station can be handled by the operation by the RIT adjustment operation means at the time of reception, while the signal of the own station can be received by the reception means at the time of transmission. By just adjusting the transmission frequency in this way, the Doppler shift that occurs in the received signal on the partner station side can be suppressed, and the operation for countering the Doppler shift, which is indispensable for satellite communication using the Earth-orbiting satellite, can be performed easily.

[Brief description of drawings]

FIG. 1 is a block diagram of a radio device according to the present invention, FIG. 2 is a block diagram of a part of another radio device according to the present invention, and FIG. 3 is a part of still another radio device according to the present invention. Omitted configuration diagram,
FIG. 4 is a block diagram of a radio device according to an embodiment of the present invention, FIG. 5 (1) is an explanatory view of the ROM in FIG. 4, and FIG. 5 (2) is in FIG. 6 is an explanatory view of the RAM of FIG. 6, and FIGS. 6 to 14 are flowcharts showing the operation of the microcomputer shown in FIG. 400: Transmission means, 402: Reception means 404: Operation transmission frequency storage means 406: Operation reception frequency storage means 408: Frequency variable operation means 410: Transmission / reception frequency setting means 412: Transmission frequency control means 414: Reception frequency control means 416: Satellite Frequency storage means 418: Channel designation operation means 420: Satellite frequency data input means 422: Satellite frequency data writing means 424: Satellite communication mode setting operation means 426: Frequency changing means 428: Transmission / reception frequency simultaneous variable mode setting / release operation means 430 : RIT adjustment operation means 432: RIT data creation means 434: Transmission instruction operation means 436: RIT adjustment means

Claims (3)

[Claims] 1. A transmission means for transmitting a signal at a corresponding transmission frequency according to transmission frequency control data, a reception means for receiving a signal at a corresponding reception frequency according to reception frequency control data, and a frequency for performing variable operation of the frequency. Variable operation means, operation transmission frequency storage means for storing operation transmission frequency data, operation reception frequency storage means for storing operation reception frequency data, and operation transmission frequency in which the frequency is changed according to the transmission frequency changing operation by the frequency adjustment operation means. Transmission / reception frequency setting means for setting data in the operation / transmission frequency storage means, and operation / reception frequency data in the operation / reception frequency storage means, the operation reception frequency data having a frequency varied according to the reception frequency variable operation by the frequency variable operation means, and the operation / transmission frequency data A transmission frequency control means for generating transmission frequency control data based on A reception frequency control means for generating reception frequency control data based on the reception frequency data; and a plurality of satellite frequency data for each channel, which is the sum of the uplink frequency and the downlink frequency of the reverse heterodyne communication satellite. Individually rewritable satellite frequency storage means, channel designation operation means for designating a write channel of the satellite frequency storage means and a calling channel, and satellite frequency for input operation of arbitrary satellite frequency data Data input operation means, satellite frequency data writing means for writing the satellite frequency data input by the satellite frequency data input operation means to the write channel designated by the channel designation operation means in the satellite frequency storage means, and satellite communication Satellite communication mode setting for mode setting operation When the satellite communication mode is set by the operation of the fixed operation means and the satellite communication mode setting operation means, the operation transmission frequency data stored in the operation transmission frequency storage means at that time (or stored in the operation reception frequency storage means) Operational reception frequency data) and satellite frequency storage means, the operation reception frequency obtained by subtracting the operation transmission frequency (or operation reception frequency) from the satellite frequency data stored in the call channel designated by the channel designation operation means. Frequency change means for calculating (or the operating transmission frequency) and changing the operating reception frequency data stored in the operating reception frequency storage means (or the operating transmission frequency data stored in the operating transmission frequency storage means). A radio that is characterized. 2. A transmission / reception frequency simultaneous variable mode setting / releasing operation means for setting / releasing the transmission / reception frequency simultaneous variable mode, wherein the transmission / reception frequency setting means operates the transmission / reception frequency simultaneous variable mode setting / release operation means. When the simultaneous variable mode of the transmission / reception frequency is set in, the operation transmission frequency data (or the operation reception frequency memory stored in the operation transmission frequency storage means) is changed in accordance with the operation of changing the transmission frequency (or reception frequency) by the frequency variable operation means. The operation reception frequency data stored in the means is variably set, and at the same time, the operation reception frequency data stored in the operation reception frequency storage means (or the operation transmission frequency data stored in the operation transmission frequency storage means) is transmitted. It should be variably set so that the sum of the frequency data (operation reception frequency data) is constant. Things, radio of claim 1, wherein. 3. RIT adjustment operating means for finely adjusting the reception frequency, RIT data creating means for creating RIT data according to the operation of the RIT adjusting operating means, and transmission instruction operating means for performing transmission instruction operation during transmission. When transmission is instructed by the transmission instruction operation means, the operation reception frequency data stored in the operation reception frequency storage means is directly output to the reception frequency control means, and when transmission is not instructed by the transmission instruction operation means Includes RIT adjustment means for adding RIT data to the operating reception frequency data stored in the operating reception frequency storage means and outputting the addition result as RIT modified operating reception frequency data to the reception frequency control means. The wireless device according to claim 1 or 2.