JPH0351530U - - Google Patents
Info
- Publication number
- JPH0351530U JPH0351530U JP11093589U JP11093589U JPH0351530U JP H0351530 U JPH0351530 U JP H0351530U JP 11093589 U JP11093589 U JP 11093589U JP 11093589 U JP11093589 U JP 11093589U JP H0351530 U JPH0351530 U JP H0351530U
- Authority
- JP
- Japan
- Prior art keywords
- sweep signal
- high frequency
- circuit
- sweep
- frequency selection
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Circuits Of Receivers In General (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
第１図及び第２図はこの考案に係る掃引信号内
蔵の無線受信機の実施例を示し、第１図は無線受
信機の高周波選択回路を調整する時のブロツク図
、第２図は掃引信号発生手段の動作を示したフロ
ーチヤートである。第３図は従来例の無線受信機
の高周波選択回路を調整する時のブロツク図であ
る。
主な符号の説明、１……この考案の無線受信器
、２……アンテナ端子、３……高周波選択回路、
４……検波器、５……検波器の検波出力端子、６
……第１周波数混合器、７……切替回路、８……
第１局部発振器、９……マイクロプロセツサ、１
０……サービススイツチ、１１……掃引信号の出
力端子、１２……オシロスコープ、１３……周波
数データの信号ライン、１４……切替信号ライン
、１５……掃引信号の掃引電圧ライン。
1 and 2 show an embodiment of a radio receiver with a built-in sweep signal according to this invention, FIG. 1 is a block diagram when adjusting the high frequency selection circuit of the radio receiver, and FIG. 2 shows a sweep signal. It is a flowchart showing the operation of the generating means. FIG. 3 is a block diagram when adjusting the high frequency selection circuit of a conventional radio receiver. Explanation of main symbols, 1... Wireless receiver of this invention, 2... Antenna terminal, 3... High frequency selection circuit,
4...Detector, 5...Detection output terminal of the detector, 6
...First frequency mixer, 7...Switching circuit, 8...
First local oscillator, 9...Microprocessor, 1
0... Service switch, 11... Sweep signal output terminal, 12... Oscilloscope, 13... Frequency data signal line, 14... Switching signal line, 15... Sweep signal sweep voltage line.
Claims (1)
ヘテロダイン受信方式の無線受信機において、 第１局部発振器の出力を切替える切替回路と、
この切替回路を制御するサービススイツチと、掃
引信号を発生する掃引信号発生手段とを設け、掃
引信号を上記高周波選択回路に供給するように構
成し、この掃引信号を出力する掃引出力端子とを
備えたことを特徴とする掃引信号内蔵の無線受信
機。[Claims for Utility Model Registration] In a superheterodyne reception method radio receiver provided with a detection output circuit of a high frequency selection circuit, a switching circuit that switches the output of a first local oscillator;
A service switch for controlling the switching circuit, a sweep signal generating means for generating a sweep signal, configured to supply the sweep signal to the high frequency selection circuit, and a sweep output terminal for outputting the sweep signal. A wireless receiver with a built-in sweep signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11093589U JPH0351530U (en) | 1989-09-25 | 1989-09-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11093589U JPH0351530U (en) | 1989-09-25 | 1989-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0351530U true JPH0351530U (en) | 1991-05-20 |
Family
ID=31659439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11093589U Pending JPH0351530U (en) | 1989-09-25 | 1989-09-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0351530U (en) |
-
1989
- 1989-09-25 JP JP11093589U patent/JPH0351530U/ja active Pending
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