JPS58104038U - Wireless transmitter squelch control method - Google Patents

Wireless transmitter squelch control method

Info

Publication number
JPS58104038U
JPS58104038U JP46682U JP46682U JPS58104038U JP S58104038 U JPS58104038 U JP S58104038U JP 46682 U JP46682 U JP 46682U JP 46682 U JP46682 U JP 46682U JP S58104038 U JPS58104038 U JP S58104038U
Authority
JP
Japan
Prior art keywords
squelch control
wireless transmitter
input signal
control method
intermediate frequency
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
Application number
JP46682U
Other languages
Japanese (ja)
Inventor
元島　敏晴
Original Assignee
日本電気株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日本電気株式会社 filed Critical 日本電気株式会社
Priority to JP46682U priority Critical patent/JPS58104038U/en
Publication of JPS58104038U publication Critical patent/JPS58104038U/en
Pending legal-status Critical Current

Links

Landscapes

  • Radio Relay Systems (AREA)

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来のスケルチ制御方式を説明するための回路
図、第２図は本考案によるスケルチ制御方式にしたがっ
て構成した無線送信機のスケルチ制御回路の一実施例を
示す回路図である。 ｓｌ、　ｓ２・・・スイッチ、０８Ｃ１・・・局部発振
−，０８Ｃ２・・・位相同期形局部発振回路、Ｒ・・・
終端抵抗。FIG. 1 is a circuit diagram for explaining a conventional squelch control method, and FIG. 2 is a circuit diagram showing an embodiment of a squelch control circuit of a wireless transmitter constructed according to the squelch control method according to the present invention. sl, s2...Switch, 08C1...Local oscillation, 08C2...Phase synchronized local oscillation circuit, R...
terminating resistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 外部駆動時、中間周波入力信号をしゃ断するとともにキ
ャリア再挿入を行ない、これに位相同期形局部発振回路
の発振周波数を混合して送信周波数を送出させるように
制御する、ヘテロゲイン中継用無線送信機におけるスケ
ルチ制御方式において、前記位相同期形局部発振回路が
同期はずれを起こした場合、前記キャリア再挿入を行な
わず前記中間周波入力信号のみしゃ断することを特徴と
する無線送信機のスケルチ制御力式。In a wireless transmitter for hetero gain relay, which cuts off the intermediate frequency input signal and reinserts the carrier when externally driven, and controls the intermediate frequency input signal to be mixed with the oscillation frequency of a phase synchronized local oscillation circuit to transmit the transmission frequency. A squelch control system for a radio transmitter, characterized in that, in the squelch control system, when the phase synchronized local oscillation circuit loses synchronization, only the intermediate frequency input signal is cut off without reinserting the carrier.
JP46682U 1982-01-06 1982-01-06 Wireless transmitter squelch control method Pending JPS58104038U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP46682U JPS58104038U (en) 1982-01-06 1982-01-06 Wireless transmitter squelch control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46682U JPS58104038U (en) 1982-01-06 1982-01-06 Wireless transmitter squelch control method

Publications (1)

Publication Number Publication Date
JPS58104038U true JPS58104038U (en) 1983-07-15

Family

ID=30013540

Family Applications (1)

Application Number Title Priority Date Filing Date
JP46682U Pending JPS58104038U (en) 1982-01-06 1982-01-06 Wireless transmitter squelch control method

Country Status (1)

Country Link
JP (1) JPS58104038U (en)

Similar Documents

Publication Publication Date Title
JPS58104038U (en) Wireless transmitter squelch control method
JPS58123642U (en) transceiver
JPS6035654U (en) squelch circuit
JPS5890755U (en) frequency modulator
JPS6019251U (en) FM transmitter/receiver
JPS5826245U (en) mobile radio
JPS5948153U (en) Transmitting device for coherent transponder
JPS59108360U (en) transceiver
JPS5817695U (en) Television signal transmitter
JPS6140051U (en) wireless device
JPS61109244U (en)
JPS5911543U (en) Weak transmission output wireless transmitter/receiver
JPS61119442U (en)
JPS59127351U (en) wireless communication device
JPS59109970U (en) Pulse radar device
JPS58109360U (en) wireless communication device
JPS60160639U (en) Radio receiver switching circuit
JPS59125143U (en) transmitter
JPS59143135U (en) FM receiver
JPS58178746U (en) transceiver
JPS60134346U (en) Cordless telephone with wireless microphone function
JPH0243033U (en)
JPS60144342U (en) Transmitting/receiving device
JPS59149738U (en) Receiving machine
JPS61126640U (en)