JPH0818481A - Method for setting transmission frequency and transmitter-receiver using same - Google Patents

Abstract

PURPOSE:To provide the transmitter-receiver for amateur radio capable of accurately and speedily setting the split frequency without requiring a memory element and any memory control for a DX station having various split operations. CONSTITUTION:The step frequency is inputted from a keyboard 6, at first, and is stored in a CPU 1. Then, a dial 7 is rotated and the reception frequency data are sent from the CPU 1 to a synthesizer 10. When the objective DX station is accepted, a split key 4 is depressed. Everytime when an up-key 5a of an U/D key 5 or a down-key 5b is depressed, the step data are added or subtracted to and from the reception frequency data in the CPU 1. Then, the transmission frequency data is operated. At the time of transmission, the transmission frequency data are outputted to the frequency synthesizer 10. In this case, the transmission frequency is set based on the transmission frequency data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an amateur radio DX.
The present invention relates to a method of setting a split frequency of a transmitter / receiver when performing split operation in communication.

[0002]

2. Description of the Related Art In the operation of DX pedition in the HF band of amateur radio, a DX pedition station (hereinafter referred to as D
The so-called split operation is frequently performed in which the X station receives a frequency separated by an arbitrary frequency (hereinafter, offset frequency) from the transmitted frequency. The DX station announces and specifies the method of split operation including the offset frequency or the frequency received by the DX station (transmission frequency from the calling station: hereinafter referred to as split frequency).
The split operation is for preventing the situation where the transmission of the DX station and the transmission of the calling station that calls the DX station overlap each other and become uncontrollable. This split operation has the following two types.

In the first method, the DX station specifies only one split frequency. In this case, the offset frequency of how much the transmitting frequency of the calling station should be deviated from the receiving frequency and how much to shift it is usually different depending on the DX station, but normally it is +5 kHz _,
That is often the case that you specify from the received frequency of the call stations 5kH _Z high.

In the second method, the DX station decides a plurality of split frequencies by instructing the range. For example, 14.110.
In kH _Z, to send as "to split operations between from 14.115kH _Z of 14.130kH _Z (upper side of the transmission frequency).".
In this case, the split frequency, constant distance from the transmission frequency of the DX station (many 5kH _Z) is often set at.
The DX station moves within a range of split frequencies designated by the DX station, selects one of the frequencies and receives it, thereby setting communication. In the case of the above-mentioned 14.115kH _Z, 14.120k
H _Z, 14.125kH _Z, 4 Tsude of 14.130KH _Z, the call station when transmitting in either the frequency, the higher the probability that I be responding.

[0005]

The present amateur radio transmitter / receiver supports the split operation by the following method. For example, a dial is used to change the reception frequency to search for a DX station. DX of purpose
When the station can receive, press the split switch to display the transmission frequency, and dial the transmission frequency of your station from the reception frequency (transmission frequency of the DX station) by the specified offset frequency based on the designation of the split operation of the DX station. Displace and send and call DX station. In this way, it is possible to support the split operation of the first method.

Further, for the split operation of the second method, a plurality of split frequencies shifted by a designated step frequency from the reception frequency (transmission frequency of the DX station) are used.
There is also a method of writing once to a plurality of internal memories and switching and using it as the transmission frequency. However, writing a plurality of split frequencies to a memory is wasteful because it is time-consuming and it is unlikely to be used later even if it is stored. Further, there is a problem that an extra memory capacity is required and the transmission frequency cannot be finely adjusted.

A transmission frequency setting method in a transceiver according to the present invention and a transceiver using the method have been proposed in view of the above problems, and are applicable to DX stations having various modes of split operation. It is an object of the present invention to provide a transceiver for amateur radio that can set the split frequency accurately and quickly without requiring an extra memory capacity or an operation of writing the split frequency to the memory.

[0008]

In the transmission frequency setting method according to claim 1, in order to solve the above-mentioned problems,
In a transceiver provided with a receiving unit capable of receiving at a desired receiving frequency and a transmitting unit capable of transmitting at a transmitting frequency different from the receiving frequency in this receiving unit, a step frequency is set in advance to correspond to the receiving frequency. To the reception frequency data, the step data corresponding to the step frequency,
A method of generating transmission frequency data by adding and subtracting a specified number of times and setting the transmission frequency based on this transmission frequency data was used.

Further, in order to solve the above-mentioned problems, in the transceiver according to a second aspect, a receiving unit that can receive at a desired receiving frequency and a transmission that can transmit at a transmitting frequency different from the receiving frequency at this receiving unit. And a step setting means for setting a step frequency in advance, and the reception frequency data corresponding to the reception frequency, the step data corresponding to the step frequency,
Calculating means for adding and subtracting a specified number of times, transmitting frequency data outputting means for generating and outputting transmitting frequency data from the calculated value of the calculating means, and transmitting frequency setting means for setting a transmitting frequency based on the transmitting frequency data, It is configured to include.

[0010]

In the transmission frequency setting method according to the first aspect of the present invention, first, the step frequency is set and adjusted to the desired reception frequency. Next, the reception frequency data corresponding to the reception frequency is added / subtracted with the step data corresponding to the step frequency a specified number of times, and the transmission frequency data is output. The transmission frequency is set based on this transmission frequency data.

In the transceiver according to the second aspect, first, the step frequency is set by the step setting means.
Next, the calculation means adds / subtracts the step frequency corresponding to the previously set step frequency to the reception frequency data corresponding to the set reception frequency a specified number of times. Next, the transmission frequency data output means generates and outputs transmission frequency data from the previously calculated value. continue,
The transmission frequency is set by the transmission frequency setting means based on the transmission frequency data.

[0012]

Embodiments of the present invention will now be described with reference to the drawings.
The details will be described. FIG. 1 is a block diagram of a transceiver using the transmission frequency setting method according to the present invention, FIG. 2 is a flow chart showing its operation, and FIG. 3 is a frequency display unit on the front surface of the transceiver of FIG.

In FIG. 1, reference numeral 1 denotes a microprocessor (hereinafter referred to as CPU) which controls the following respective parts. Two
Is a ROM that stores the control program of the CPU 1 shown in the flowchart of FIG. 2, and 3 is a transmission switch that switches between transmission and reception. Reference numeral 4 denotes a holding type split switch which is turned on when pushed and turned off when pushed again. A split signal is issued when the split switch is turned on. 5 is an up / down key (hereinafter U / D
It is composed of an up key 5a and a down key 5b. The U / D key 5 is normally for storing a plurality of frequencies in a RAM (not shown) in the memory mode or for sequentially calling the stored plurality of frequencies. 6 is a keyboard for directly inputting a step frequency or a target frequency, 7 is a dial for selecting a frequency, and two frequencies are directly set by switching between a reception frequency setting function and a transmission frequency setting function by a changeover switch 7a. You can also

Reference numeral 8 is a main display section for displaying the transmission / reception frequency, and 9 is a sub-display section for lighting the transmission frequency (split frequency) only during split operation. As shown in FIG. 3, the main display portion 8 and the sub-display portion 9 include not only the frequency but also the radio wave type and other displays. Reference numeral 10 is a frequency synthesizer that oscillates a frequency corresponding to the transmission frequency and the reception frequency, and 11 is a transmission / reception unit whose transmission and reception frequencies are controlled by the frequency synthesizer 10. The transmission frequency data and the reception frequency data are generated by the CPU 1 and input to the frequency synthesizer 10, where the transmission and reception frequencies are set based on the respective frequency data. Here, the CPU 1 and the keyboard 6 serve as step setting means, the CPU 1 and the U / D key 5 serve as computing means, and C
PU1 corresponds to transmission frequency data output means, and frequency synthesizer 10 corresponds to transmission frequency setting means.

Next, the operation of the transceiver of the embodiment will be described using the flowchart of FIG. In the normal transceive state in which the transmission frequency and the reception frequency are equal, the main display 8
The frequency is displayed only on the display, and the dial 7 is turned to increase or decrease the frequency data to raise or lower the reception and transmission frequencies of the main display portion 8. Then, transmission / reception is performed at this frequency.

When performing a split operation, first turn the dial 7 while using the display on the main display 8 as a guide to set the desired DX.
Look for the station transmitting. For example, the can be received the desired DX station 14.110MH _Z. When the station announces that the split operation will be performed by the second method and the frequency range and the step frequency f _S are designated, the numerical value f _S is input from the keyboard 6 of the transceiver. Of course, the numerical value f _S is temporarily stored in the memory in the CPU 1 as step data. If nothing is input to the keyboard 6 at this time, the step frequency f _S is set to the initial value. Here, the initial value is set to 5kH _Z. Because, in the split operation of the DX station, but it is not much to specify step frequency f _S to specify only the frequency range, the often split frequency is 5KH _Z interval.

Then, when the split switch 4 is pressed,
In step S1, the split signal remains output, and the process proceeds to step S2. At the same time, the sub display unit 9 is turned on to display a split frequency described later. Here, the frequency data of the reception frequency f _R and the step frequency f _S currently being received is read into the memory in the CPU 1 as the reception frequency data and step data. U / at the same time
The D key 5 is switched from the memory channel switching function in the memory mode to the one having the function of increasing or decreasing the split frequency step by step.

Then, in step S3, 1 is substituted for the initial value of the step number N. Next, in step S4, the split frequency (transmission frequency) f _T is calculated from the reception frequency f _R , the step frequency f _S, and the number of steps N. This number is displayed on the sub display unit 9. As described above, since the initial value of the step frequency f _S is set to 5KH _Z,
The sub-display unit 9, the main display unit 8 5kH _Z higher split frequencies than the reception frequency 14.110MH _Z displayed on the 14.115M
H _Z is displayed. In addition, the right sub display section 9, is also displayed figure of 1 step (5kH _Z) high C1 meaning split frequency than the received frequency. This is executed up to this point by simply pressing the split switch 4.

[0019] Naturally, another numerical step frequency, for example, when set to 10KH _Z by pressing the split switch 4 once, the sub-display unit 9 split frequency 14.120MH _Z are displayed. In this way, the quick split is completed only by pressing the split switch 4 once, which corresponds to the split operation of the first method. In the flowchart, unless the split switch 4 is turned off (not turned off), the process returns from step S9 to step S4.

In addition, in the second method, which is a split operation using a plurality of split frequencies, U / D
It corresponds by pressing the up key 5a or the down key 5b of the key 5. That is, when the split frequency f _T is specified to the upper side, every time the up key 5a is pressed in step S5, addition of frequency data is repeated in steps S6 and S4, and the split frequency f _T is set. step frequency f _S (here 5kH _Z) going up by. For example, the reception state of the previous 14.110MH _Z, split frequency 1 Press split switch 4
From the state in which the 4.115MH _Z has been displayed, the up key 5a 1
Pressing times, it becomes 14.120MH _Z up further 5kH _Z. Thus, every time the up key 5a is pressed, the step S5
Repeat the cycle of step S6 and step S4,
14.125MH _Z, will become sequentially higher by 14.130MH _Z and 5kH _Z. In Figure 3, 2 and Step (10KH _Z) high split frequency 14.120MH _Z from the receive frequency 14.110MH _Z, figure of C2 meaning split frequency on two steps is being displayed.

When the split frequency f _T is specified to be lower, step S7 is performed without pressing the up key 5a.
Press the down key 5b. 14.115M in step S4
Since it is set to H _Z , if the down key 5b is pressed once, the same as the reception frequency f _R in steps S8 and S4.
Becomes 14.110MH _Z, press again in step S8 · Step S4, drops by 5KH _Z here step frequency f _S that has been set, the split frequency f _T 14.105
Become MH _Z. Thus, Each press of the down key 5b, repeated subtraction of the frequency data, the split frequency f _T is gradually lowered by 5kH _Z.

In this way, after the desired split frequency f _T is displayed on the sub display unit 9, the transmission switch 3 is pressed. When the transmission switch 3 is pressed, the frequency data of the split frequency f _T displayed on the sub display unit 9 is sent to the frequency synthesizer 10. At the same time, the transmitter of the transmitter / receiver 11 operates. In this way, transmission is started at the split frequency f _T separated by the designated offset frequency. Of course, when the transmission switch 3 is released, it enters the reception state, and the radio wave of the display frequency of the main display portion 8 is received. Here, when the frequency synthesizers are respectively provided for transmission and reception, the transmission and reception frequencies can be switched only by switching the transmission and reception unit.

[0023] As can be seen in the flow chart, up and down the split frequency f _T is any number of times, can raise or lower only by 5KH _Z count down the U / D key 5. Of course, when the step frequency f _S is set to 5KH _Z can vertically by the number of times pressed 5kH _Z. After reading and storing the reception frequency f _R in step S2,
Also receive a different frequency than the receive frequency f _R by rotating the dial 7, the reception frequency f _R at the time of pressing the split switch 4 are stored in the CPU 1, the sub-display unit 9
The split frequency f _T displayed at does not change. Therefore, when the transmission switch 3 is pressed, the split frequency f _T displayed on the sub display unit 9 is transmitted.

In this transceiver, the sub-display 9 normally displays the transmission frequency instead of the reception frequency.
By pressing the sub reception switch 9a, the frequency data of the display frequency is input to the CPU 1, the frequency synthesizer 10 is controlled thereby, and the display frequency of the sub display unit 9 can be received. Therefore, the split frequency can be set while checking the calling states of other stations that call the DX station. Further, since the changeover switch 7a can be switched to the transmission frequency setting side and the frequency displayed on the sub display portion 9 can be adjusted with the dial 7, the transmission frequency can be set to the split frequency set by the U / D key 5. It is also possible to fine tune to a frequency outside the range and transmit at that frequency. However, unless the split switch 4 is turned off, the flow chart is in the loop of steps S4 to S9. Therefore, when the U / D key 5 is pressed, the frequency on the sub-display 9 is set to the dial 7 before the split frequency before the movement. , 5kH _Z to change to either up or down.

When communication with the DX station is completed and the split operation is stopped, the split switch 4 is pressed to turn it off, and the process proceeds from step S9 to step S10. In step S10, the transmission frequency shown in the sub display unit 9 becomes equal to the current reception frequency f _RR shown in the main display unit 8, and the normal transceive state in which the transmission and reception frequencies are equal is established. At the same time, the display on the sub display unit 9 disappears. This completes a series of split operation operations. Then, when communicating with another DX station that operates split,
After matching the transmission frequency of the X station, input the step frequency according to the instruction, press the split switch 4 to turn it on, and repeat the same operation from step S2.

[0026]

The transmission frequency setting method and the transmitter / receiver using the same according to the present invention are configured as described above, and a DX station which does not require a memory element and is split in a simple operation. It is possible to accurately and quickly respond to the specification of a wide variety of split frequencies.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of a transceiver that uses a transmission frequency setting method in the transceiver according to the present invention.

FIG. 2 is a flowchart diagram of a transmission frequency setting method in a transceiver according to the present invention.

FIG. 3 is a front view of a main display unit and a sub-display unit of the transceiver of FIG.

[Explanation of symbols]

1 Microprocessor (CPU) (step setting means / calculation means / transmission frequency data output means) 2 ROM 3 transmission switch 4 split switch 5 U / D key (calculation means) 5a up key 5b down key 6 keyboard (step setting means) 7 dial 7a changeover switch 8 main display section 9 sub display section 9a sub reception switch 10 frequency synthesizer (transmission frequency setting means) 11 transmission / reception section

Claims (2)

[Claims] 1. A receiving unit capable of receiving at a desired receiving frequency,
In a transmission frequency setting method in a transceiver including a transmission unit capable of transmitting at a transmission frequency different from the reception frequency in the reception unit, a step frequency is set in advance, and the step is added to the reception frequency data corresponding to the reception frequency. A transmission frequency setting method characterized in that step data corresponding to a frequency is added or subtracted a specified number of times to generate transmission frequency data, and the transmission frequency is set based on the transmission frequency data. 2. A receiving unit capable of receiving at a desired receiving frequency,
A step setting means for setting a step frequency in advance in a transmitter / receiver having a transmission section capable of transmitting at a transmission frequency different from the reception frequency in the reception section, and in the reception frequency data corresponding to the reception frequency, the step frequency Operation means for adding / subtracting corresponding step data a specified number of times, transmission frequency data output means for generating transmission frequency data from the operation value of the operation means, and transmission for setting a transmission frequency based on the transmission frequency data A transceiver comprising: frequency setting means.