Calibration method and calibration device for digital mobile communication general-purpose tester
A comprehensive tester, mobile communication technology, applied in transmission monitoring, electrical components, transmission systems, etc., can solve the problems of too many standard instruments and inconvenience to carry.
Inactive Publication Date: 2015-06-24
SHANGHAI INST OF MEASUREMENT & TESTING TECH
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Problems solved by technology
[0004] The disadvantage of the digital mobile communication integrated tester calibration device in the prior art is that it contains more standard instruments, and it is inconvenient to carry when providing calibration services for customers on site
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[0029] The following will combine Figure 1 to Figure 5The calibration method and calibration device of the digital mobile communication comprehensive tester of the present invention are further described in detail.
[0030] When calibrating the output frequency of the radio frequency signal generator in the digital mobile communication comprehensive tester, the digital mobile communication comprehensive tester calibration method of the present invention uses the frequency measurement function of the spectrum analyzer to calibrate, and the concrete method is as follows:
[0031] Such as figure 1 As shown, the radio frequency input terminal 211 of the spectrum analyzer 21 is connected with the radio frequency signal output terminal 11 of the digital mobile communication comprehensive tester 10 to be calibrated, and the digital mobile communication comprehensive tester to be calibrated is measured by the spectrum analyzer 21 The radio frequency signal frequency that the radio f...
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The invention relates to a calibration method and a calibration device for a digital mobile communication general-purpose tester. Output power of a radiofrequency signal generator in the digital mobile communication general-purpose tester is calibrated through a frequency measuring function of a spectrum analyzer; output power of an audio signal generator in the digital mobile communication general-purpose tester is calibrated by a digital multimeter with a frequency meter function; level measurement accuracy of an audio analyzer in the digital mobile communication general-purpose tester is calibrated by a vector signal generator; output signal distortion of the audio signal generator in the digital mobile communication general-purpose tester is calibrated by the spectrum analyzer; and audio distortion measuring accuracy of an audio distortion analyzer in the digital mobile communication general-purpose tester is calibrated by the vector signal generator. Accordingly, the frequency meter, the audio signal generator, a distortion signal analyzer and a distortion signal generator are not required to be configured for the calibration device, cost is saved, configuration of the calibration device is simplified, and the calibration device is portable.
Description
technical field [0001] The invention relates to the field of communication instrument calibration, in particular to a calibration method and a calibration device for a digital mobile communication comprehensive tester. Background technique [0002] Published relevant calibration specifications for digital mobile communication comprehensive tester include: JJF1131-2005 TDMA (GSM) digital mobile communication comprehensive tester calibration specification, JJF1177-2007CDMA digital mobile communication analyzer calibration specification, JJF1204-2008TD-SCDMA digital mobile communication comprehensive test Instrument calibration specification, JJF1276-2011 wideband code division multiple access (WCDMA) digital mobile communication comprehensive test instrument calibration specification. According to the relevant calibration specifications mentioned above, the calibration device of digital mobile communication comprehensive tester includes frequency meter, power meter, vector sig...
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IPC IPC(8): H04B17/00H04B17/11H04B17/21
Inventor 詹志强陆福敏
Owner SHANGHAI INST OF MEASUREMENT & TESTING TECH