EDO's Radar Signal Simulator (RSS) AN/PLM-4
UHF Remote option provides aircraft pilots and maintenance personnel
an end-of-runway Electronic Warfare (EW) systems checkout capability
prior to takeoff. The UHF remote option circuitry is located in
the RSS top cover. Air crew or maintenance personnel can key, in
a pre-defined sequence at a user programmable frequency, the aircraft
UHF radio to start or stop a preprogrammed emitter scenario. The
AN/PLM-4 RSS free-space radiates the simulated emitters at the aircraft
receive antennas enabling the operator to verify correct functioning
of onboard Electronic Warfare (EW) systems.