JPH0339917U - - Google Patents
Info
- Publication number
- JPH0339917U JPH0339917U JP10045089U JP10045089U JPH0339917U JP H0339917 U JPH0339917 U JP H0339917U JP 10045089 U JP10045089 U JP 10045089U JP 10045089 U JP10045089 U JP 10045089U JP H0339917 U JPH0339917 U JP H0339917U
- Authority
- JP
- Japan
- Prior art keywords
- frequency shift
- adjustment circuit
- value
- adjustment
- relay station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Transmitters (AREA)
- Radio Relay Systems (AREA)
Description
第１図はこの考案の一実施例を示すブロツク図
、第２図は具体的な回路図、第３図、第５図、第
７図は入力信号対周波数偏移の特性を示すグラフ
、第４図は従来装置のブロツク図、第６図は中継
局があるときのブロツク図である。
１…変調入力端子、２…振幅制限回路、３…ス
プラツタフイルタ、４，７…可変抵抗器、５…周
波数変調器、６…変調出力端子、８，９…スイツ
チ。
Fig. 1 is a block diagram showing an embodiment of this invention, Fig. 2 is a specific circuit diagram, Figs. 3, 5, and 7 are graphs showing characteristics of input signal versus frequency deviation. FIG. 4 is a block diagram of a conventional device, and FIG. 6 is a block diagram when there is a relay station. DESCRIPTION OF SYMBOLS 1... Modulation input terminal, 2... Amplitude limiting circuit, 3... Splatter filter, 4, 7... Variable resistor, 5... Frequency modulator, 6... Modulation output terminal, 8, 9... Switch.
Claims (1)
時周波数偏移制御回路において、 最大周波数偏移が第１の値に調整された第１の
調整回路と、 最大周波数偏移が第１の値より大きい第２の調
整値に調整された第２の調整回路とを備え、 この装置が中継局以外に使用されるときは第１
の調整回路を、中継局に用いられるときは第２の
調整回路を選択することを特徴とする瞬時周波数
偏移制御回路。[Claims for Utility Model Registration] In an instantaneous frequency shift control circuit that controls transmission frequency shift using a modulated signal, a first adjustment circuit whose maximum frequency shift is adjusted to a first value; a second adjustment circuit whose deviation is adjusted to a second adjustment value larger than the first value, and when this device is used in a place other than a relay station, the first adjustment circuit
An instantaneous frequency shift control circuit characterized in that when used in a relay station, a second adjustment circuit is selected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10045089U JPH0339917U (en) | 1989-08-30 | 1989-08-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10045089U JPH0339917U (en) | 1989-08-30 | 1989-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0339917U true JPH0339917U (en) | 1991-04-17 |
Family
ID=31649458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10045089U Pending JPH0339917U (en) | 1989-08-30 | 1989-08-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0339917U (en) |
-
1989
- 1989-08-30 JP JP10045089U patent/JPH0339917U/ja active Pending
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