Detection device and method of amplifier at column top in SCDMA system

A tower-top amplifier and testing device technology, applied in transmission systems, transmission monitoring, electrical components, etc., can solve the problems of high testing cost, unsuitable for large-scale testing, low testing efficiency, etc. cost saving effect

Inactive Publication Date: 2007-02-21
重庆信威通信技术有限责任公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Because the test cost of special signal source equipment is high, and the test efficienc

Method used

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  • Detection device and method of amplifier at column top in SCDMA system
  • Detection device and method of amplifier at column top in SCDMA system
  • Detection device and method of amplifier at column top in SCDMA system

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Embodiment Construction

[0033] figure 2 It shows the testing device of the SCDMA system tower top amplifier of the present invention. The tower mounted amplifier test device is composed of a PC (including test software), an automatic tower amplifier test bench (hereinafter referred to as "test bench") and a spectrum analyzer. The PC and the test bench communicate through an RS-232 serial port, which is used to control the signal source output of the test bench, the sending and receiving status of the tower, and the power supply. The RF path on the test bench is connected to the base station or antenna of the tower. The spectrum analyzer is alternately connected to the antenna end or the base station end of the tower, and the PC reads the data of the spectrum analyzer through the GPIB interface, then analyzes and calculates the test data and judges the test results.

[0034] image 3 The internal principle of the testing device of the present invention is shown. The hardware main body of the signa...

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Abstract

The apparatus thereof comprises a PC, a spectrometer connected to the tested tower top amplifier and said PC, and a testing stand connected to the PC and the tested tower top amplifier. The testing stand comprises a signal source, a control board connected to the signal source and a DC power source. The signal source of testing stand provides signals for the tested tower top amplifier. The PC is used to control the output of the signal from the testing stand, provides different outputted wave, different power range, outputs signals with controllable waveform and amplitude and tests the gain of receiving and transmitting and the three-order intersection indication; and controls the testing stand control board to control and test the send receive state of the tested tower top amplifier.

Description

technical field [0001] The invention relates to a testing device and a testing method of a tower top amplifier, in particular to a testing device and a testing method of a SCDMA system tower top amplifier. Background technique [0002] In the SCDMA system in the field of communication technology, the current test equipment for the tower mounted amplifier is as follows: figure 1 As shown, because different dedicated signal sources are required according to the required single-peak and double-peak signals, at the current stage, it is necessary to use two manual-operated signal generating devices with frequency bands above 1800MHz (such as the HP8648B used by our company before), And 48V and 5V regulated power supply with manual operation. These devices are very expensive, and the internal cable connection test in the tower mounted amplifier under test is a manual operation. [0003] With the development of SCDMA communication industry, there has been no special test equipmen...

Claims

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Application Information

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IPC IPC(8): H04B17/00H04B17/13H04B17/327
Inventor 田宏谭远辉向严峻张宗杰李秀华李元明
Owner 重庆信威通信技术有限责任公司
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