JPS6114541U - antenna input circuit - Google Patents
antenna input circuitInfo
- Publication number
- JPS6114541U JPS6114541U JP9681184U JP9681184U JPS6114541U JP S6114541 U JPS6114541 U JP S6114541U JP 9681184 U JP9681184 U JP 9681184U JP 9681184 U JP9681184 U JP 9681184U JP S6114541 U JPS6114541 U JP S6114541U
- Authority
- JP
- Japan
- Prior art keywords
- input
- antenna
- input circuit
- shortwave
- antenna input
- 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
- Superheterodyne Receivers (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図は本考案の一実施例を示す回路図、第２図はＢＰ
Ｆの減衰特性図、第３図は従来のアンテナ、入力回路の
一例を示す回路図、第４図り従来のアンテナ入力回路の
他の例を示す回路図である。
１・・・ロンドアンテナ、２〜４・・・コンデンサ、５
，６・・・コイル、１６・・・バンド切換スイッチ。Figure 1 is a circuit diagram showing an embodiment of the present invention, Figure 2 is a BP
FIG. 3 is a circuit diagram showing an example of a conventional antenna and input circuit, and FIG. 4 is a circuit diagram showing another example of the conventional antenna input circuit. 1... Rondo antenna, 2-4... Capacitor, 5
, 6... Coil, 16... Band selection switch.
Claims (1)
テナに一端が接続され、坤端側がＦＭ入力、短波入力に
分岐されているコンデンサと、前記コンデンサと短波入
力との間に配設され、コイルとコンデンサからなる短波
抽出用の反共振回路とを有するラジオ受信機のアンテナ
入力回路において、前記反共振回路の短波入力側を、Ｆ
Ｍ受信時に短絡せしめる切換スイッチを設けたことを特
徴とするアンテナ入力回路。 （２）前記ＦＭ入力、短波入力の分岐点と、ＦＭ入．力
との間に直列接続されたコイルとコンデンサからなるバ
ント：パスフィルタを配設したことを− 特徴とする前
記実用新案登録請求の範囲第１項記載のアンテナ入力回
路。 （３）一前記切換スイッチが、バンド切換スイッチの空
き端子を利用したものであることを特徴どする前記実用
新案登録呻求の範囲第１項又は第２項記載のアンテナ入
力回路。[Claims for Utility Model Registration] <1) A common antenna for FM and shortwave reception, a capacitor whose one end is connected to the antenna and whose ends are branched into an FM input and a shortwave input, and the capacitor and the shortwave input. In the antenna input circuit of a radio receiver, the shortwave input side of the antiresonance circuit is connected to the F
An antenna input circuit characterized by being provided with a changeover switch that short-circuits when receiving M signals. (2) The branch point of the FM input and shortwave input, and the FM input. 2. The antenna input circuit according to claim 1, further comprising a band pass filter comprising a coil and a capacitor connected in series between the antenna input circuit and the antenna input circuit. (3) The antenna input circuit according to item 1 or 2 of the application for utility model registration, wherein the changeover switch utilizes a vacant terminal of a band changeover switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9681184U JPS6114541U (en) | 1984-06-29 | 1984-06-29 | antenna input circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9681184U JPS6114541U (en) | 1984-06-29 | 1984-06-29 | antenna input circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6114541U true JPS6114541U (en) | 1986-01-28 |
Family
ID=30656319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9681184U Pending JPS6114541U (en) | 1984-06-29 | 1984-06-29 | antenna input circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6114541U (en) |
-
1984
- 1984-06-29 JP JP9681184U patent/JPS6114541U/en active Pending
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