JPS6019251U - FM transmitter/receiver - Google Patents
FM transmitter/receiverInfo
- Publication number
- JPS6019251U JPS6019251U JP10998383U JP10998383U JPS6019251U JP S6019251 U JPS6019251 U JP S6019251U JP 10998383 U JP10998383 U JP 10998383U JP 10998383 U JP10998383 U JP 10998383U JP S6019251 U JPS6019251 U JP S6019251U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- local oscillator
- receiver
- antenna
- keyboard
- 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)
- Superheterodyne Receivers (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
図面は本考案の一実施例を示すブロック図である。
図中、1はアンテナ、2は高周波段、5はローカル発振
器、7は可変分周器、9はループフィルタ、20は送受
信切換スイッチ、21は増幅器、22はミキサ、PLL
はフェイズロックドループである。The drawing is a block diagram showing an embodiment of the present invention. In the figure, 1 is an antenna, 2 is a high frequency stage, 5 is a local oscillator, 7 is a variable frequency divider, 9 is a loop filter, 20 is a transmission/reception switch, 21 is an amplifier, 22 is a mixer, and PLL
is a phase-locked loop.
Claims (1)
を受信時には該受信機の高周波段側に接続し、また送信
時には該受信機のローカル発振器側に接続する送受信切
換スイッチと、該ローカル発振器の出力を増幅して該ア
ンテナに供給する増幅器と、周波数選択キーを有するキ
ーボードと、該ローカル発振器の周波数を設定するPL
Lの可変分周器に、該キーボードからの入力を受けて受
信周波数もしくはそれとは中間周波数の差を持つ送信周
波数を設定するための分周値をセットする処理装置と、
PLLの該ローカル発振器の入力段でループフィルタの
直流出力に送信音声信号を重量するミキサとを備えてな
ることを特徴とする、PLLシンセサイザ方式のFMラ
ジオ受信機を利用したFM送受信装置。The antenna of a PLL synthesizer type FM radio receiver is connected to the high frequency stage side of the receiver when receiving, and connected to the local oscillator side of the receiver when transmitting, and a transmit/receive switch that amplifies the output of the local oscillator. an amplifier for supplying the antenna to the antenna; a keyboard having frequency selection keys; and a PL for setting the frequency of the local oscillator.
a processing device that receives input from the keyboard and sets a frequency division value in the L variable frequency divider for setting the reception frequency or a transmission frequency that is different from the reception frequency by an intermediate frequency;
1. An FM transmitting/receiving device using a PLL synthesizer type FM radio receiver, comprising a mixer for adding a transmission audio signal to the DC output of a loop filter at the input stage of the local oscillator of the PLL.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10998383U JPS6019251U (en) | 1983-07-15 | 1983-07-15 | FM transmitter/receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10998383U JPS6019251U (en) | 1983-07-15 | 1983-07-15 | FM transmitter/receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6019251U true JPS6019251U (en) | 1985-02-09 |
Family
ID=30255980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10998383U Pending JPS6019251U (en) | 1983-07-15 | 1983-07-15 | FM transmitter/receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6019251U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0213678U (en) * | 1988-07-08 | 1990-01-29 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5157116A (en) * | 1974-11-14 | 1976-05-19 | Alps Electric Co Ltd | Fm toranshiiba |
-
1983
- 1983-07-15 JP JP10998383U patent/JPS6019251U/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5157116A (en) * | 1974-11-14 | 1976-05-19 | Alps Electric Co Ltd | Fm toranshiiba |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0213678U (en) * | 1988-07-08 | 1990-01-29 |
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