JPS6133539U

JPS6133539U - repeater

Info

Publication number: JPS6133539U
Application number: JP11489884U
Authority: JP
Inventors: 勉竹内
Original assignee: 東洋技研工業株式会社
Priority date: 1984-07-30
Filing date: 1984-07-30
Publication date: 1986-02-28

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 the drawing]

第１図は本考案の一実施例の概略ブ吊ツク図、第２図は
第１図の受信部と送信部の一具体例を示すブ冶ツク図、
第３図は本考案が適用されるＦＭ放送中継システムの説
明図、第４図は従来のシステムの説明図である。１・・・無線局１、２〜１１・・・第１〜第１０の中継
器、２０・・・受信部、３０・・・送信部、４０・・・
三巻変成器、５０・・・アンテナ。FIG. 1 is a schematic block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram showing a specific example of the receiving section and transmitting section of FIG. 1.
FIG. 3 is an explanatory diagram of an FM broadcast relay system to which the present invention is applied, and FIG. 4 is an explanatory diagram of a conventional system. DESCRIPTION OF SYMBOLS 1... Radio station 1, 2-11... 1st - 10th repeater, 20... Receiving part, 30... Transmitting part, 40...
Three-turn transformer, 50...antenna.

Claims

[Scope of utility model registration request]

means for extracting FM broadcast waves of a first frequency f1 from weakly received FM broadcast waves;
FM broadcast radio waves having a second frequency f2 different from the first frequency f1; means for converting the frequency of M broadcast radio waves into an intermediate frequency of a scheduled frequency; a means for frequency-converting the FM broadcast radio wave at the second frequency f2, a means for amplifying the FM broadcast radio wave at the second frequency f2, and a means for passing only the FM broadcast radio wave at the second frequency f2, and receiving weak radio waves; This repeater is characterized by frequency conversion and amplification of this signal to a strength that can be transmitted without permission as stipulated by the Radio Law of Japan.