The IFR / Aeroflex 1900-5 is a microprocessor controlled, digitally synthesized communications service monitor that combines the operation of many different test instruments into a single, compact unit. The 1900's 10 MHz to 2 GHz frequency coverage is ideal for testing Cellular and PCS subscriber terminals and base stations. Supports 400/800 MHz cellular, and 1900 MHz PCS (IS-136) bands.