5solid state, 9220 mhz to 9620 mhz mechanical tuning range, remotely electrical tuned 20 mhz to 50 mhz, 4w min unattenuated power output, 8.5 v dc min 9.5 v dc max power requirement, waveguide flange mounted, 1.700 in. Lg by 1.700 in. W mounting flange