JPS6271931U - - Google Patents
Info
- Publication number
- JPS6271931U JPS6271931U JP16219485U JP16219485U JPS6271931U JP S6271931 U JPS6271931 U JP S6271931U JP 16219485 U JP16219485 U JP 16219485U JP 16219485 U JP16219485 U JP 16219485U JP S6271931 U JPS6271931 U JP S6271931U
- Authority
- JP
- Japan
- Prior art keywords
- intermediate frequency
- receiver
- band pass
- narrow band
- bandpass filter
- 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.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000005684 electric field Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Noise Elimination (AREA)
- Circuits Of Receivers In General (AREA)
Description
第１図および第２図は本考案の実施例であり、
第１図は第一実施例の構成ブロツク図、第２図は
第二実施例の構成ブロツク図を示し、第３図およ
び第４図は従来例の構成ブロツク図を示す。
１：受信周波数変換回路部、２：中間周波帯域
通過濾波器、３：主中間周波増幅器、４：制御器
、５：狭帯域通過濾波器、６：固定抵抗減衰器、
７：高速切替器、８：電力分配器、９：警報制御
回路、１０：復調器、１１：雑音検出器、１２：
雑音信号制御器。
1 and 2 are examples of the present invention,
FIG. 1 shows a block diagram of the first embodiment, FIG. 2 shows a block diagram of the second embodiment, and FIGS. 3 and 4 show block diagrams of a conventional example. 1: Reception frequency conversion circuit section, 2: Intermediate frequency bandpass filter, 3: Main intermediate frequency amplifier, 4: Controller, 5: Narrow bandpass filter, 6: Fixed resistance attenuator,
7: High-speed switch, 8: Power divider, 9: Alarm control circuit, 10: Demodulator, 11: Noise detector, 12:
Noise signal controller.
Claims (1)
波器と、ＡＧＣ機能を有する主中間周波増幅器と
、復調器とを備えた受信機において、前記中間周
波帯域通過濾波器よりも通過帯域の狭い特性を有
する狭帯域通過濾波器と、この狭帯域通過濾波器
の出力電圧を分岐する電力分配器、および受信機
の雑音あるいは受信入力電界で制御する高速切替
器とを備えたことを特徴とする受信機。 A receiver including a reception frequency conversion circuit section, an intermediate frequency bandpass filter, a main intermediate frequency amplifier having an AGC function, and a demodulator, which has a narrower passband characteristic than the intermediate frequency bandpass filter. 1. A receiver comprising: a narrow band pass filter; a power divider that branches the output voltage of the narrow band pass filter; and a high speed switch controlled by receiver noise or received input electric field. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985162194U JPH0424661Y2 (en) | 1985-10-22 | 1985-10-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985162194U JPH0424661Y2 (en) | 1985-10-22 | 1985-10-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6271931U true JPS6271931U (en) | 1987-05-08 |
| JPH0424661Y2 JPH0424661Y2 (en) | 1992-06-11 |
Family
ID=31089225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985162194U Expired JPH0424661Y2 (en) | 1985-10-22 | 1985-10-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0424661Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57168341U (en) * | 1981-04-17 | 1982-10-23 | ||
| JPS6141321U (en) * | 1984-08-17 | 1986-03-15 | 古河電気工業株式会社 | Pipe hanging jumper device |
-
1985
- 1985-10-22 JP JP1985162194U patent/JPH0424661Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57168341U (en) * | 1981-04-17 | 1982-10-23 | ||
| JPS6141321U (en) * | 1984-08-17 | 1986-03-15 | 古河電気工業株式会社 | Pipe hanging jumper device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0424661Y2 (en) | 1992-06-11 |
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