Mobile Communication System Transmitter Rf Testing Practice And Analysis

With the development of science and technology and the progress of society, wireless technology has been widely used. However, due to the extensive use of radio equipment, equipment quality is uneven, plus some wireless users illegal settings, change the technical parameters of launching a transmitter devices, the electromagnetic environment is complicated, electromagnetic environment pollution incidents, radio interference, to safeguard the order, guarantee the lawful waves, regular radio business normal timely radio equipment testing equipment use unqualified, limit is very necessary.Especially in the field of mobile communication technology, the communication rapid development in recent years,2Gand3G mobile communication technology, the application has entered innumberable families, with the mobile communication network covers more and more widely, mobile base, the number of base, with the rf test transmitter job also appears more and more important. Hand in a radio channel filled all sorts of electromagnetic wave, through the rf test can measure the parameters of the transmitter whether meet the national standards, the traffic generated from the source of radio interference, protect the lawful mobile telecommunication normal business, On the other hand the communication equipment and many indicators, interference is directly related to radio stations, through the performance index, index for rf worsening traffic can be caused by poor quality of speech communication towards, unable to connect, blind, etc, to ensure the failure causes of communication.Now the domestic use public mobile communication is mainly for the second and third generation mobile communication system, the system including the GSM, CDMA, third generation system including TD-SCDMA and WCDMA, CDMA2000. According to different systems in the relevant parameters RF technical standards as RF test conclusions.Along with the rapid development of mobile communication technology, the microwave power spectrum analyzer, vector tester, function also signal analizer in innovation, this paper through the use of our company MS8609 comprehensive test system for GSM, CDMA base on the radio transmitter for detecting, introduced the related test equipment and testing is analyzed and discussed the principle of modern mobile radio transmitter the purpose, significance and testing methods, and summarizes some analysis and test, finally, this paper introduces some new testing technology and testing equipment and the development trend of the function.