JPS60112135U

JPS60112135U - switch type receiver

Info

Publication number: JPS60112135U
Application number: JP20405983U
Authority: JP
Inventors: 斎藤　光一
Original assignee: アルプス電気株式会社
Priority date: 1983-12-28
Filing date: 1983-12-28
Publication date: 1985-07-30

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図ないし第３図は、周波数スペクトラムを示す図で
、第１図は受信周波数の図、第２図は群変換のために上
側の周波数によって変換された中間周波数の図、第３図
は群変換のために下側の周波数によって変換された中間
周波数の図、第４図ないし第８図は本考案の一実施例に
係り、第４図はコリンズ方式の受信機を示すブロック図
、第５図は第２局発回路を制御するブロック図、第６図
は反転回路を示す図、第７図、第８図はスイッチ　　。からのコードを示す図である。１・・・・・・高周波増幅回路、２・・・・・・第１局
発回路、３・・・・・・第１変換回路、４・・・・・・
群変換ブロック、５・・・・・・第２変換回路、６，１
５・・・・・・第２局発回路、？、１１．１３・・・・
・・スイッチ、８・・・・・・中間周波増幅回路、１２
・・・・・・コード変換器、１４・・・・・・反転回路
。Figures 1 to 3 are diagrams showing frequency spectra, where Figure 1 is a diagram of the received frequency, Figure 2 is a diagram of the intermediate frequency transformed by the upper frequency for group transformation, and Figure 3 is a diagram of the intermediate frequency transformed by the upper frequency for group transformation. 4 to 8 are diagrams of the intermediate frequency transformed by the lower frequency for group transformation, and FIG. 4 is a block diagram showing a Collins type receiver, FIG. Figure 5 is a block diagram for controlling the second local oscillator circuit, Figure 6 is a diagram showing an inversion circuit, and Figures 7 and 8 are switches. FIG. 1... High frequency amplification circuit, 2... First local oscillator circuit, 3... First conversion circuit, 4...
Group transformation block, 5... Second transformation circuit, 6, 1
5...Second station oscillator circuit? , 11.13...
...Switch, 8...Intermediate frequency amplification circuit, 12
......Code converter, 14...Inverting circuit.

Claims

[Scope of utility model registration request]

a first local oscillation circuit with a fixed oscillation frequency; a second local oscillation circuit with a variable oscillation frequency;
In a switch-type receiver comprising a switch for setting the oscillation frequency of a local oscillation circuit to an oscillation frequency corresponding to a receiving channel, a code conversion device that is attached to the switch and outputs a conversion code corresponding to the code signal from the switch. an inverting circuit for inverting the code signal from the switch is disposed between the switch and the second local oscillator circuit; Features a switch type receiver.