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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 inconvenient to carry.

Inactive Publication Date: 2013-01-02
SHANGHAI INST OF MEASUREMENT & TESTING TECH
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  • Abstract
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  • Claims
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AI Technical Summary

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

Method used

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  • Calibration method and calibration device for digital mobile communication general-purpose tester
  • Calibration method and calibration device for digital mobile communication general-purpose tester
  • Calibration method and calibration device for digital mobile communication general-purpose tester

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Embodiment Construction

[0029] The following will combine Figure 1 ~ Figure 5 The calibration method and the calibration device of the digital mobile communication integrated tester of the present invention will be further described in detail.

[0030] When calibrating the output frequency of the radio frequency signal generator in the digital mobile communication integrated tester, the digital mobile communication integrated tester calibration method of the present invention uses the frequency measurement function of the spectrum analyzer to calibrate, and the specific method is as follows:

[0031] Such as figure 1 As shown, the radio frequency input terminal 211 of the spectrum analyzer 21 is connected to the radio frequency signal output terminal 11 of the digital mobile communication comprehensive tester 10 to be calibrated, and the spectrum analyzer 21 measures the digital mobile communication comprehensive tester to be calibrated The frequency of the radio frequency signal output by the radio freq...

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Abstract

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 calibration of communication instruments, in particular to a calibration method and a calibration device of a digital mobile communication integrated tester. Background technique [0002] The related calibration specifications of digital mobile communication integrated tester that have been released include: JJF1131-2005 TDMA (GSM) digital mobile communication integrated tester calibration specification, JJF1177-2007 CDMA digital mobile communication analyzer calibration specification, JJF1204-2008TD-SCDMA digital mobile communication integrated test Instrument calibration specification, JJF1276-2011 Wideband Code Division Multiple Access (WCDMA) digital mobile communication integrated test instrument calibration specification. According to the above-mentioned related calibration specifications, the calibration device of the digital mobile communication integrated tester includes a frequency meter, a power meter, a vect...

Claims

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Application Information

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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
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