JPS5929853U - antenna amplifier - Google Patents
antenna amplifierInfo
- Publication number
- JPS5929853U JPS5929853U JP12484682U JP12484682U JPS5929853U JP S5929853 U JPS5929853 U JP S5929853U JP 12484682 U JP12484682 U JP 12484682U JP 12484682 U JP12484682 U JP 12484682U JP S5929853 U JPS5929853 U JP S5929853U
- Authority
- JP
- Japan
- Prior art keywords
- antenna amplifier
- frequency signal
- main unit
- received
- local oscillation
- 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
- Noise Elimination (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (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
第１図および第２図乃至第４図は従来例を示すブロック
図および特性図、第５図は本考案実施例を示す回路図、
第６図は本考案を説明するための特性図である。
Ｄｌ、Ｄ２・・・・・・可変容量ダイオード、Ｃ□、Ｃ
２・・・・・・コンデンサ、Ｌｌ、Ｌ２・・・・・・イ
ンダクタンス、ＴＲ１゜ＴＲ２・・・・・・トラップ回
路。1 and 2 to 4 are block diagrams and characteristic diagrams showing a conventional example, and FIG. 5 is a circuit diagram showing an embodiment of the present invention.
FIG. 6 is a characteristic diagram for explaining the present invention. Dl, D2...Variable capacitance diode, C□, C
2... Capacitor, Ll, L2... Inductance, TR1°TR2... Trap circuit.
Claims (1)
ている周波数信号の局部発振周波数を検出するための手
段と、上記受信周波数信号に隣接する妨害周波数信号を
減衰させるためのトラップ手段とを含むことを特徴とす
るアンテナアンプ。 ２ 上記検出された局部発振周波数を直流に変換するた
めの手段を含むことを特徴とする実用新案登録請求の範
囲第１項記載のアンテナアンプ。[Claims for Utility Model Registration] 1. Means for detecting the local oscillation frequency of a frequency signal being received by the main unit when connected to the main unit, and attenuating an interfering frequency signal adjacent to the received frequency signal. An antenna amplifier characterized by comprising: a trap means for trapping. 2. The antenna amplifier according to claim 1, characterized in that the antenna amplifier includes means for converting the detected local oscillation frequency into direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12484682U JPS5929853U (en) | 1982-08-17 | 1982-08-17 | antenna amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12484682U JPS5929853U (en) | 1982-08-17 | 1982-08-17 | antenna amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5929853U true JPS5929853U (en) | 1984-02-24 |
Family
ID=30284452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12484682U Pending JPS5929853U (en) | 1982-08-17 | 1982-08-17 | antenna amplifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5929853U (en) |
-
1982
- 1982-08-17 JP JP12484682U patent/JPS5929853U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5929853U (en) | antenna amplifier | |
| JPS58184934U (en) | Noise prevention circuit | |
| JPS6030626U (en) | trap circuit | |
| JPS59169151U (en) | Transmitter/receiver antenna switching circuit | |
| JPS5920744U (en) | Receiver input circuit | |
| JPS5948146U (en) | AM receiver noise removal circuit | |
| JPS60114448U (en) | high frequency tuning circuit | |
| JPS5864135U (en) | sweep receiver | |
| JPS5956827U (en) | IF filter AGC circuit | |
| JPS5876250U (en) | Radio receiver intermediate frequency bandwidth switching circuit | |
| JPS58563U (en) | Synchronous detection circuit | |
| JPS58132445U (en) | IF radiation prevention circuit | |
| JPS59108352U (en) | AM Chuna | |
| JPS5843026U (en) | trap circuit | |
| JPS59171437U (en) | squelch circuit | |
| JPS58176436U (en) | AM receiver | |
| JPS59108355U (en) | Local oscillation signal injection device | |
| JPS5868747U (en) | AM interference wave detection circuit | |
| JPS58164329U (en) | tuning device | |
| JPS5866722U (en) | Impedance conversion circuit for FM antenna | |
| JPS5866771U (en) | Audio detection circuit | |
| JPS58169744U (en) | VHF tuner input tuning circuit | |
| JPS58114627U (en) | Receiver tuning correction circuit | |
| JPS58169706U (en) | synchronous detector | |
| JPS5960580U (en) | pulse compression radar |