the radar threat tables within the PSP, prior to flightcrew system display. Dual Mode Transmitter (DMT) - A 24,000 volt radar transmitter, containing a TWT, which generates the amplified RF to be sent to the radar Antenna for system emission. The TWT operates by optical pulses received from the DMT's internal Pulse Decker Unit and TWT Cathode/Anode voltage inputs. Antenna - A planar array antenna, which is constructed to receive RF data through a waveguide system. The transmitted and received pulses are controlled in time by the PMW (Pulse Modulated Wave) radar design, and the waveguide duplexer assembly. Internal to the antenna are Uniphaser Assemblies (used for quadrature phase control), Phase Shifters (used of quadrature I/Q data) and gimbalized motor control for antenna positioning and position correction. References External links Northrop Grumman APG-68(V)9 Site AN/APG-68 Global Security.com Aircraft radars Military radars of the United States Military electronics of the United States Radars of the United States Air Force Synthetic aperture radar Military radars of Poland