JPS586452U - AM receiver - Google Patents
AM receiverInfo
- Publication number
- JPS586452U JPS586452U JP9762081U JP9762081U JPS586452U JP S586452 U JPS586452 U JP S586452U JP 9762081 U JP9762081 U JP 9762081U JP 9762081 U JP9762081 U JP 9762081U JP S586452 U JPS586452 U JP S586452U
- Authority
- JP
- Japan
- Prior art keywords
- frequency stage
- receiver
- high frequency
- stages
- switched
- 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)
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図は従来のＡＭ受信機におけるＱとイ
メージ妨害比の特性図およびＱと高域エネルギとの関係
を示す特性図。第３図は本考案の一実施例のブロック図
。第４図は本考案の一実施例のブロック図。
１・・・・・・広帯域高周波段、２・・・・・・狭帯域
高周波段、３・・・・・・混合回路、４・・・・・・局
部発振器、９・・・・・・検波回路、１０・・・・・・
高周波段、１１および１５・・・・・・帯域幅切替回路
、１２・・・・・・広帯域中間周波段、１３・・・・・
・狭帯域中間周波段、１４・・・・・・中間周波段。FIG. 1 and FIG. 2 are characteristic diagrams showing the relationship between Q and image interference ratio and the relationship between Q and high frequency energy in a conventional AM receiver. FIG. 3 is a block diagram of an embodiment of the present invention. FIG. 4 is a block diagram of one embodiment of the present invention. 1...Broadband high frequency stage, 2...Narrowband high frequency stage, 3...Mixing circuit, 4...Local oscillator, 9... Detection circuit, 10...
High frequency stage, 11 and 15...Bandwidth switching circuit, 12...Broadband intermediate frequency stage, 13...
- Narrow band intermediate frequency stage, 14... intermediate frequency stage.
Claims (1)
周波段と、帯域幅を複数段階に切替可能な中間周波段と
を備え、受信状況に応じて前記高周波段の帯域幅または
／および前記中間周波蕨の帯域幅を切替えることを特徴
とするＡＭ受信機。The AM receiver includes a high frequency stage whose bandwidth can be switched to a plurality of stages, and an intermediate frequency stage whose bandwidth can be switched to a plurality of stages, and the bandwidth of the high frequency stage and/or the intermediate frequency stage can be changed depending on reception conditions. An AM receiver characterized by switching the frequency band width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9762081U JPS586452U (en) | 1981-07-02 | 1981-07-02 | AM receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9762081U JPS586452U (en) | 1981-07-02 | 1981-07-02 | AM receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS586452U true JPS586452U (en) | 1983-01-17 |
Family
ID=29892407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9762081U Pending JPS586452U (en) | 1981-07-02 | 1981-07-02 | AM receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS586452U (en) |
-
1981
- 1981-07-02 JP JP9762081U patent/JPS586452U/en active Pending
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