JPS5861556U - Reception monitor device - Google Patents
Reception monitor deviceInfo
- Publication number
- JPS5861556U JPS5861556U JP15558981U JP15558981U JPS5861556U JP S5861556 U JPS5861556 U JP S5861556U JP 15558981 U JP15558981 U JP 15558981U JP 15558981 U JP15558981 U JP 15558981U JP S5861556 U JPS5861556 U JP S5861556U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- communication
- continuous tone
- 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
Landscapes
- Transceivers (AREA)
- Mobile Radio Communication 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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図面は本考案による受信モニタ装置の一実施例を示すブ
ロック図である。
１・・・アンテナ、２・・・アンテナ切換回路、３・・
・高周波増幅回路、４・・・混合回路、５・・・中間周
波増幅回路、６・・・検波回路、７・・・プリアンプ、
８・・・スイッチ回路、９・・・パワーアンプ、１０・
・・スピーカ、１１・・・トーンスケルチ回路、１２・
・・トーンスケルチ検波回路、１３・・・スイッチング
回路、１４・・・検出回路、１５・・・ノイズアンプ、
１６・・・検波回路、１７・・・スイッチング回路、１
８・・・送信スイッチ回路、１９・・・マイクロボン、
２０・・・マイクアンプζ２１・・・変調回路、２２・
・・メインアンプ、２３・・・発振回路、２４・・・ア
ンドゲート、２５・・・発振回路。The drawing is a block diagram showing an embodiment of a reception monitoring device according to the present invention. 1... Antenna, 2... Antenna switching circuit, 3...
・High frequency amplification circuit, 4...Mixing circuit, 5...Intermediate frequency amplification circuit, 6...Detection circuit, 7...Preamplifier,
8... Switch circuit, 9... Power amplifier, 10.
...Speaker, 11...Tone squelch circuit, 12.
...Tone squelch detection circuit, 13...Switching circuit, 14...Detection circuit, 15...Noise amplifier,
16...Detection circuit, 17...Switching circuit, 1
8... Transmission switch circuit, 19... Microbon,
20...Microphone amplifier ζ21...Modulation circuit, 22.
... Main amplifier, 23 ... Oscillation circuit, 24 ... AND gate, 25 ... Oscillation circuit.
Claims (1)
て通信し、かつその通信信号中に判別用の連続トーン信
号を有し、この連続トーン信号で特定の送受信機を選択
するようにした通信装置において、 該送受信機から該キー局への送信準備のときに作動せし
める送信スイッチ回路と、 該キー局と該送受信機間の通信信号の有無を検出して検
出信号を出力する検出回路と、該連続トーン信号が自局
用のトーン信号でないときにスケルチ信号を出力するト
ーンスケルチ回路と、 該送信スイッチ回路、検出回路およびトーンスケルチ回
路のゲート出力で作動して予め設定された可聴周波信号
を出力する発振回路と を具備したことを特徴とする受信モニタ装置。[Claims for Utility Model Registration] Communication between a key station and multiple transceivers is carried out using a carrier wave of the same frequency, and the communication signal includes a continuous tone signal for discrimination, and this continuous tone signal is used to identify a specific transceiver. The communication device is configured to select a transmission switch circuit which is activated when preparing for transmission from the transmitter/receiver to the key station, and detects the presence or absence of a communication signal between the key station and the transmitter/receiver to generate a detection signal. a tone squelch circuit that outputs a squelch signal when the continuous tone signal is not a tone signal for its own station; and an oscillation circuit that outputs an audio frequency signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15558981U JPS5861556U (en) | 1981-10-20 | 1981-10-20 | Reception monitor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15558981U JPS5861556U (en) | 1981-10-20 | 1981-10-20 | Reception monitor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5861556U true JPS5861556U (en) | 1983-04-25 |
Family
ID=29948161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15558981U Pending JPS5861556U (en) | 1981-10-20 | 1981-10-20 | Reception monitor device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5861556U (en) |
-
1981
- 1981-10-20 JP JP15558981U patent/JPS5861556U/en active Pending
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