JPS6168545U - - Google Patents
Info
- Publication number
- JPS6168545U JPS6168545U JP1984055493U JP5549384U JPS6168545U JP S6168545 U JPS6168545 U JP S6168545U JP 1984055493 U JP1984055493 U JP 1984055493U JP 5549384 U JP5549384 U JP 5549384U JP S6168545 U JPS6168545 U JP S6168545U
- Authority
- JP
- Japan
- Prior art keywords
- wave
- sweep
- signal generator
- level
- frequency
- 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
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
Description
第１図はスプリアスレスポンスの掃引波干渉式
測定法の基本構成図、第２図、第３図は被測定Ｆ
Ｍ受信機の出力端に出力される合成波の波形図、
第４図は検波された干渉ビート波形図、第５図は
本考案に係るスプリアスレスポンス装置の一実施
例構成、第６図は掃引バンド説明図を示している
。
図中、１は標準信号発生器、２は周波数掃引信
号発生器、３は整合器、４は被測定ＦＭ受信機、
５は高域通過フイルタ、６は整流器、７は低域通
過フイルタ、１１は希望波信号発生器、１２は掃
引信号発生器、１３は整合器、１４は被測定ＦＭ
受信機、１５は可変レベル器、１６はビート検波
部、１７はコンパレータ、１８はカウンタ、１９
は鋸歯状波発生回路、２０は制御部、２１は入力
キー、２２は表示装置を表わしている。
Figure 1 is a basic configuration diagram of the swept wave interferometric measurement method for spurious responses, and Figures 2 and 3 are the F to be measured.
A waveform diagram of the composite wave outputted to the output end of the M receiver,
FIG. 4 shows a detected interference beat waveform, FIG. 5 shows an embodiment of the configuration of a spurious response device according to the present invention, and FIG. 6 shows a sweep band explanatory diagram. In the figure, 1 is a standard signal generator, 2 is a frequency sweep signal generator, 3 is a matching device, 4 is an FM receiver to be measured,
5 is a high-pass filter, 6 is a rectifier, 7 is a low-pass filter, 11 is a desired wave signal generator, 12 is a sweep signal generator, 13 is a matching box, and 14 is an FM to be measured.
Receiver, 15 is a variable leveler, 16 is a beat detection section, 17 is a comparator, 18 is a counter, 19
2 is a sawtooth wave generating circuit, 20 is a control section, 21 is an input key, and 22 is a display device.
補正 昭６０．１１．２０
図面の簡単な説明を次のように補正する。
明細書第１７頁第７行目の「掃引バンド説明図
」の次に「、第７図は掃引の仕方を説明するため
の掃引設定説明図」を挿入する。Amendment November 20, 1980 The brief description of the drawing is amended as follows. Next to the "sweep band explanatory diagram" on page 17, line 7 of the specification, "Figure 7 is a sweep setting explanatory diagram for explaining how to sweep" is inserted.
Claims (1)
生器１１と；妨害波の掃引周波数信号を発生させ
る掃引信号発生器１２と；希望波と妨害波とを重
畳させる整合器１３と；希望波と妨害波とを重畳
した信号を被測定ＦＭ受信機１４の入力端子に与
え、その出力端子に生じるＺ字出力と干渉ビート
との合成波の出力レベルを受けて可変させる可変
レベル器１５と；該可変レベル器１５でレベル調
整された前記合成波から干渉ビートの検波波形を
得るビート検出部１６と；ビート検出部１６で検
波された検波波形の尖頭値と予め定められたレベ
ルとを比較するコンパレータ１７と；掃引信号発
生器１２へ鋸歯状波を供給する鋸歯状波発生回路
１９と；希望波信号発生器１１、掃引信号発生器
１２、可変レベル器１５を制御する制御部２０を
備え、制御部２０には掃引すべき周波数帯域を記
憶する掃引周波数バンド記憶手段２３と；可変レ
ベル器１５のレベル量を設定する可変レベル制御
手段２４と；コンパレータ１７が出力信号を出し
たときの掃引信号発生器１２の周波数を読取り記
憶する周波数値読取り記憶手段２５と；掃引周波
数バンド記憶手段２３に記憶された情報から掃引
信号発生器１２を制御する掃引制御手段２７とを
備えたスプリアスレスポンス装置。 A desired wave signal generator 11 that generates a frequency signal of a desired wave; a sweep signal generator 12 that generates a swept frequency signal of an interfering wave; a matching box 13 that superimposes a desired wave and an interfering wave; a desired wave and an interfering wave. a variable level device 15 that applies a signal obtained by superimposing the wave and the interference beat to the input terminal of the FM receiver to be measured 14, and varies the output level in response to the output level of the composite wave of the Z-shaped output and the interference beat generated at the output terminal; a beat detection unit 16 that obtains a detected waveform of an interference beat from the composite wave whose level has been adjusted by a level device 15; a comparator that compares the peak value of the detected waveform detected by the beat detection unit 16 with a predetermined level; 17; a sawtooth wave generation circuit 19 that supplies a sawtooth wave to the sweep signal generator 12; and a control section 20 that controls the desired wave signal generator 11, the sweep signal generator 12, and the variable level device 15. The section 20 includes a sweep frequency band storage means 23 that stores the frequency band to be swept; a variable level control means 24 that sets the level amount of the variable level device 15; and a sweep signal generation unit 24 when the comparator 17 outputs an output signal. A spurious response device comprising: a frequency value reading/storage means 25 for reading and storing the frequency of the frequency band generator 12; and a sweep control means 27 for controlling the sweep signal generator 12 from information stored in the sweep frequency band storage means 23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984055493U JPH036047Y2 (en) | 1984-04-17 | 1984-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984055493U JPH036047Y2 (en) | 1984-04-17 | 1984-04-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6168545U true JPS6168545U (en) | 1986-05-10 |
| JPH036047Y2 JPH036047Y2 (en) | 1991-02-15 |
Family
ID=30578218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984055493U Expired JPH036047Y2 (en) | 1984-04-17 | 1984-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH036047Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5342868A (en) * | 1976-09-30 | 1978-04-18 | Yuseisho Denpa Kenkyusho | Sweeping wave interference type measuring method of sprious response of fm receiver |
| JPS59115637A (en) * | 1982-12-22 | 1984-07-04 | Pioneer Electronic Corp | Automatic checking method of fm tuner |
-
1984
- 1984-04-17 JP JP1984055493U patent/JPH036047Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5342868A (en) * | 1976-09-30 | 1978-04-18 | Yuseisho Denpa Kenkyusho | Sweeping wave interference type measuring method of sprious response of fm receiver |
| JPS59115637A (en) * | 1982-12-22 | 1984-07-04 | Pioneer Electronic Corp | Automatic checking method of fm tuner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH036047Y2 (en) | 1991-02-15 |
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