Base Station Analyzer Suitable for 4 G TechSupporting 2G, 3G, and 4 G networks, the BTS Master MT8221B handheld base station analyzer from Anritsu provides a 20-MHz demodulation capability for LTE and WiMax technologies and a 30-MHz zero-span IF output for external demodulation of other wideband signals. The device also features detection of key performance indicators, a vector signal generator option, RF quality and modulation quality measurement, downlink over-the-air quality tests, and software allowing data transfer.