Digital AMPS TDMA system (IS-136 standard) is a mobile radio standard that has attained a degree of importance in the US and other countries almost equalling that of analog AMPS and CDMA. For this reason Rohde & Schwarz has decided to support this standard with its Digital Radiocommunication Tester CMD80, in addition to analog AMPS and CDMA already covered by this tester [1; 2].
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