Any frequency spotted and monitored by the SDU5500 can be received by the AR5000 straight way. When connected with the AR5000, the SDU5500 virtually works as a spectrum analyzer over 10 KHz to 2600 MHz range as the center frequency always becomes the receive frequency. 5 MHz spread against the input frequency. Through the DDS controlled local oscillator circuit. Any radios which are equipped with a 10.7 MHz IF output and RS232C port can work with SDU5500.
Sweep direction is selectable depending on the heterodyne configuration of the radio.
Sweep may be narrower subject to the IF characteristics of the radio.