The MS8604A Digital Mobile Radio Transmitter Tester covers the frequency range from 100Hz to 8.5GHz. It evaluates the major characteristics of transmitters used in the North American Digital Cellular System (NADC), Japan's digital mobile telephone (PDC: Personal Digital Cellular) system and by cordless telephones (PHS: Personal Handy-phone System.) It measures spurious emissions over a broad frequency range. It can also measure RF signals directly up to 10 watts (Average Burst Power). It is ideal for high-speed measurement of carrier frequency, spurious emissions, occupied bandwidth, antenna power, leakage power during carrier-off, transmission ramp-up power, modulation accuracy, leakage power of adjacent channel, and signal transmission rate of digital mobile transmitters.