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Universal Radio Communication Tester R&S CMU200 is proving itself as a tester for all GSM versions in many mobile-phone production lines all over the world. Now it comes with two extra functions for non-GSM networks - the US TDMA (IS-136) and AMPS standards. Unlike the situation in Europe, there are three competing digital mobile-radio networks in the United States: GSM, CDMA (IS-95) and TDMA (IS-136). Outside the USA, TDMA is becoming increasingly important in South America, which means a significant enlargement of its market. And there is a fourth system, analog AMPS, which serves as the second mode in CDMA and TDMA mobiles, so that a radio tester for their production and service must be able to handle the standard of the first-generation network too.
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