JPS55126861A - Frequency measuring device - Google Patents
Frequency measuring deviceInfo
- Publication number
- JPS55126861A JPS55126861A JP3530179A JP3530179A JPS55126861A JP S55126861 A JPS55126861 A JP S55126861A JP 3530179 A JP3530179 A JP 3530179A JP 3530179 A JP3530179 A JP 3530179A JP S55126861 A JPS55126861 A JP S55126861A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- signal
- band
- frequency signal
- sent
- 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
- Superheterodyne Receivers (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
Abstract
PURPOSE: To make it possible to measure the frequency of a signal only within a band, by detecting only the needed signal by discriminating and removing spurious and image signals.
CONSTITUTION: A high-frequency signal inputted to high-frequency signal input terminal 200 is sent to mixers 203 and 208 by way of band-pass filter 201 and voltage distributor 202 and then converted into an intermediate-frequency signal. Through amplifiers 205 and 209, the intermediate-frequency signal is sent to (n)- channel branching filters 206 and 211 and branched to (n)-channels. To respective outputs of coincidence detection circuits 213-1W213-n, signals are transferred only when a signal resides in the objective high-frequency band, and frequency display unit 214 provides frequency measurement display.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3530179A JPS55126861A (en) | 1979-03-26 | 1979-03-26 | Frequency measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3530179A JPS55126861A (en) | 1979-03-26 | 1979-03-26 | Frequency measuring device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55126861A true JPS55126861A (en) | 1980-10-01 |
JPS6148667B2 JPS6148667B2 (en) | 1986-10-25 |
Family
ID=12437945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3530179A Granted JPS55126861A (en) | 1979-03-26 | 1979-03-26 | Frequency measuring device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55126861A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007309708A (en) * | 2006-05-17 | 2007-11-29 | Advantest Corp | Instrument for measuring frequency components |
JP2008519960A (en) * | 2004-11-10 | 2008-06-12 | 株式会社アドバンテスト | Distinguishing actual and image lines in frequency converters for spectrum analyzers. |
JP2015175717A (en) * | 2014-03-14 | 2015-10-05 | 三菱電機株式会社 | Frequency measuring device, frequency measuring method, and program |
-
1979
- 1979-03-26 JP JP3530179A patent/JPS55126861A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008519960A (en) * | 2004-11-10 | 2008-06-12 | 株式会社アドバンテスト | Distinguishing actual and image lines in frequency converters for spectrum analyzers. |
JP2007309708A (en) * | 2006-05-17 | 2007-11-29 | Advantest Corp | Instrument for measuring frequency components |
JP2015175717A (en) * | 2014-03-14 | 2015-10-05 | 三菱電機株式会社 | Frequency measuring device, frequency measuring method, and program |
Also Published As
Publication number | Publication date |
---|---|
JPS6148667B2 (en) | 1986-10-25 |
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