JPS63173932U - - Google Patents
Info
- Publication number
- JPS63173932U JPS63173932U JP6812787U JP6812787U JPS63173932U JP S63173932 U JPS63173932 U JP S63173932U JP 6812787 U JP6812787 U JP 6812787U JP 6812787 U JP6812787 U JP 6812787U JP S63173932 U JPS63173932 U JP S63173932U
- Authority
- JP
- Japan
- Prior art keywords
- signal transmission
- frequency signal
- antenna
- collector
- transmission line
- 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
- 230000008054 signal transmission Effects 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
第１図は本考案の一実施例を示す図、第２図は
ダミーアンテナを示す図である。
２……ダイオード、３……ＦＭフロントエンド
部、４……ＦＭ高周波信号伝送路、５……スイツ
チングトランジスタ、６……ＡＭフロントエンド
部、７……ＡＭ高周波信号伝送路、８……並列回
路、９……コンデンサ、１０……ダイオード、１
３……コントローラ。
FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing a dummy antenna. 2...Diode, 3...FM front end section, 4...FM high frequency signal transmission line, 5...Switching transistor, 6...AM front end section, 7...AM high frequency signal transmission line, 8 ...Parallel Circuit, 9...Capacitor, 10...Diode, 1
3... Controller.
Claims (1)
周波信号伝送路に直列接続された第１ダイオード
と、コレクタ・エミツタ路が前記アンテナ及びＡ
Ｍフロントエンド部間のＡＭ高周波信号伝送路の
接地間に接続されたスイツチングトランジスタと
、このスイツチングトランジスタのコレクタと前
記ＡＭ高周波信号伝送路間に配設されたコンデン
サ及び第２ダイオードよりなる並列回路とを備え
てなるＦＭ―ＡＭ受信機のＤＸ―Ｌｏｃａｌ切換
回路。 A first diode connected in series to the FM high frequency signal transmission path between the antenna and the FM front end section, and a collector-emitter path connected to the antenna and the A
A parallel circuit consisting of a switching transistor connected between the ground of the AM high-frequency signal transmission line between the M front end sections, and a capacitor and a second diode arranged between the collector of this switching transistor and the AM high-frequency signal transmission line. A DX-Local switching circuit for an FM-AM receiver comprising a circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6812787U JPS63173932U (en) | 1987-05-07 | 1987-05-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6812787U JPS63173932U (en) | 1987-05-07 | 1987-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63173932U true JPS63173932U (en) | 1988-11-11 |
Family
ID=30907656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6812787U Pending JPS63173932U (en) | 1987-05-07 | 1987-05-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63173932U (en) |
-
1987
- 1987-05-07 JP JP6812787U patent/JPS63173932U/ja active Pending
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