"VOR (VARIABLE OMNI RANGE) SYSTEM;PROVIDES BEARING (AZIMUTH) INFORMATION CONTINUOUSLY TO AIRCRAFT FROM GROUND;1-PHASE,3-WIRE 120 VAC OR 3-PHASE,4-WIRE 208 VAC; 47 TO 63 HZ; C/O INPUT-OUTPUT TERMINAL 2,PRINTER 1,REMOTE DIGITAL DATA MODEM 1,CONTROL-INDICATOR 1,ANTENNA 2,VOR ANTENNA RADOME 1,BATTERY ASSY 1,TRANSMITTER GROUP 1;ALL SOLID STATE"