CN103763046A - Rapid test device for combined tones of short-wave radio station - Google Patents
Rapid test device for combined tones of short-wave radio station Download PDFInfo
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- CN103763046A CN103763046A CN201410002000.5A CN201410002000A CN103763046A CN 103763046 A CN103763046 A CN 103763046A CN 201410002000 A CN201410002000 A CN 201410002000A CN 103763046 A CN103763046 A CN 103763046A
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- 238000012360 testing method Methods 0.000 title claims abstract description 17
- 238000005516 engineering process Methods 0.000 description 2
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Abstract
The invention discloses a rapid test device for combined tones of a short-wave radio station. The rapid test device for the combined tones of the short-wave radio station comprises a signal generator, an audio analyzer, a computer and a resistor with a shielding equivalent antenna. The short-wave radio station comprises a receiver inside. The receiver comprises an antenna input end, an audio output end and a serial data port. A signal level is input to the antenna input end by the signal generator, output audio frequency is input by the audio output end to the audio analyzer to be analyzed so that a threshold value can be obtained, the resistor with the shielding equivalent antenna is connected to the antenna input end, stepping delta f scanning frequency is sent to the serial data port through the computer, current scanning frequency and a level corresponding to the scanning frequency are sent to the computer by the short-wave radio station through the serial data port, and the frequency corresponding to the level exceeding the threshold value is recorded by the computer and displayed on a screen.
Description
Technical field
The present invention relates to the testing apparatus of short-wave radio set, especially a kind of device for quick testing of short-wave radio set combination tone.
Background technology
Combination tone is the audio frequency output that interior each local oscillation signal of receiver and combination thereof produce, conventional short-wave radio set combination tone method of testing is at present: the equivalent aerial resistance of short wave station antenna input termination one band shielding, audio output connects audio analyzer, in 1.6MHz～30MHz shortwave frequency range, with stepping Δ f, manually change short-wave radio set operating frequency, observe audio analyzer, write down that audio analyzer reads than the Frequency point of the low 6dB of standard signal to noise ratio, i.e. combination tone.
If frequency is calculated by stepping 1kHz, in 1.6MHz～30MHz shortwave frequency range, need manually to change 28400 Frequency points, by changing a Frequency point 5 seconds, to calculate, light change frequency just needs 39 hours, and test is wasted time and energy.
Summary of the invention
The technical problem solving: for the deficiencies in the prior art, the present invention proposes a kind of device for quick testing of short-wave radio set combination tone, solves the technical problem that prior art test combination tone is wasted time and energy.
Technical scheme: for solving the problems of the technologies described above, the present invention by the following technical solutions:
A device for quick testing for short-wave radio set combination tone, comprises signal generator, audio analyzer, computer and band shielding equivalent aerial resistance, in described short-wave radio set, comprises receiver, and receiver comprises antenna input, audio output and serial data mouth; Described signal generator inputs to antenna input by signal level, described audio output inputs to the audio frequency of output in audio analyzer and analyzes and obtain threshold value, described band shielding equivalent aerial resistance is connected to antenna input, described computer sends the scanning frequency of stepping Δ f to serial data mouth, receiver is sent to computer by serial data mouth by current scanning frequency and level corresponding to this frequency, and described computer recording surpasses the corresponding frequency of level of threshold value and is presented on computer screen.
Apparatus of the present invention are divided into 2 steps in use, first test out threshold value, then scan, and will make comparisons when corresponding level and the threshold value of lower frequency, once discovery exceeds the level of threshold value, just record in time its corresponding frequency, found out combination tone.
Beneficial effect: apparatus of the present invention are simple in structure, first utilizes audio analyzer and signal generator to coordinate and obtains threshold value, then utilizes computer realization scanning, and judges whether in time to surpass threshold value to find out in time the frequency that combination tone is corresponding.Compare traditional manual test method, the present invention can automatic scan shortwave frequency range, measures combination tone, avoid the action of artificial change frequency loaded down with trivial details in the test of traditional group synaeresis, measured accurately, saved human resources, greatly shorten detection consuming time, improved operating efficiency.
Accompanying drawing explanation
Fig. 1 is the annexation figure of apparatus of the present invention test gate limit value;
Annexation figure when Fig. 2 is apparatus of the present invention scanning;
Fig. 3 is method of work flow chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
A kind of device for quick testing of short-wave radio set combination tone, in described short-wave radio set, comprise receiver 1, receiver 1 comprises antenna input 2, audio output 3 and serial data mouth 4, comprises signal generator 5, audio analyzer 6, computer 7 and band shielding equivalent aerial resistance 8; Described signal generator 5 inputs to antenna input 2 by signal level, described audio output 3 inputs to the audio frequency of output in audio analyzer 6 and analyzes and obtain threshold value, described band shielding equivalent aerial resistance 8 is connected to antenna input 2, described computer 7 sends the scanning frequency of stepping Δ f to serial data mouth 4, receiver 1 is sent to computer 7 by serial data mouth 4 by current scanning frequency and level corresponding to this frequency, and described computer 7 records surpass the corresponding frequency of level of threshold value and are presented on computer screen.
During use, the output level of conditioning signal generator 5, makes the short-wave radio set audio frequency output of reading on audio analyzer 6 than the low 6dB of standard signal to noise ratio, and now signal generator 5 output signal levels of take are threshold value, then disconnect being connected of antenna input 2 and signal generator 5, at antenna input 2 access one band shielding equivalent aerial resistance 8, utilize computer 7 to control short-wave radio set scans with the scanning frequency of stepping Δ f=1kHz in 1.6MHz～30MHz, receiver 1 reports scanning frequency and level corresponding to this frequency instantly by serial data mouth 4 to computer 7, when the level being recorded to when computer 7 surpasses threshold value, if desired instant playback, frequency corresponding to this level shown on computer screen, if do not need, do not show, continue scanning, until complete the scanning in all frequency ranges, all results are presented on computer screen, the quick test of end to short-wave radio set combination tone, compare artificial frequency-selecting, utilize the test speed of this device greatly to promote.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (1)
1. the device for quick testing of a short-wave radio set combination tone, in described short-wave radio set, comprise receiver (1), receiver (1) comprises antenna input (2), audio output (3) and serial data mouth (4), it is characterized in that: comprise signal generator (5), audio analyzer (6), computer (7) and band shielding equivalent aerial resistance (8), described signal generator (5) inputs to antenna input (2) by signal level, described audio output (3) inputs to the audio frequency of output in audio analyzer (6) and analyzes and obtain threshold value, described band shielding equivalent aerial resistance (8) is connected to antenna input (2), described computer (7) sends the scanning frequency of stepping Δ f to serial data mouth (4), receiver (1) is sent to computer (7) by serial data mouth (4) by current scanning frequency and level corresponding to this frequency, described computer (7) record surpasses the corresponding frequency of level of threshold value and is presented on computer screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002000.5A CN103763046B (en) | 2014-01-03 | 2014-01-03 | A kind of method for rapidly testing of short-wave radio set combination tone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002000.5A CN103763046B (en) | 2014-01-03 | 2014-01-03 | A kind of method for rapidly testing of short-wave radio set combination tone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103763046A true CN103763046A (en) | 2014-04-30 |
| CN103763046B CN103763046B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410002000.5A Expired - Fee Related CN103763046B (en) | 2014-01-03 | 2014-01-03 | A kind of method for rapidly testing of short-wave radio set combination tone |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4555806A (en) * | 1982-03-27 | 1985-11-26 | Rohde & Schwarz Gmbh & Co. Kg | System for the automatic establishment of a shortwave telegraphy signal connection |
| CN201629749U (en) * | 2010-04-02 | 2010-11-10 | 中南林业科技大学 | Portable frequency hopping radio station fault diagnosis device |
| CN102664692A (en) * | 2012-04-16 | 2012-09-12 | 惠州市德赛汽车电子有限公司 | System and method for testing interference software of simulation verification double-radio module of laboratory |
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2014
- 2014-01-03 CN CN201410002000.5A patent/CN103763046B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4555806A (en) * | 1982-03-27 | 1985-11-26 | Rohde & Schwarz Gmbh & Co. Kg | System for the automatic establishment of a shortwave telegraphy signal connection |
| CN201629749U (en) * | 2010-04-02 | 2010-11-10 | 中南林业科技大学 | Portable frequency hopping radio station fault diagnosis device |
| CN102664692A (en) * | 2012-04-16 | 2012-09-12 | 惠州市德赛汽车电子有限公司 | System and method for testing interference software of simulation verification double-radio module of laboratory |
Non-Patent Citations (1)
| Title |
|---|
| 寇小明: "基于虚拟仪器技术的短波电台自动测试系统", 《今日电子》, no. 2, 28 February 2006 (2006-02-28), pages 61 - 63 * |
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| CN103763046B (en) | 2016-05-25 |
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Granted publication date: 20160525 |