"CONSISTS OF MICROWAVE INTEGRATED CIRCUIT ASSEMBLY,WAVEGUIDE EXT.,CIRCULATOR,ELECTRONIC CONTROL MODULE ASSEMBLY,OSCILLATOR VOLTAGE CONTROL,TRANSMIT/RECEIVE LIMITER AND MISC ELECTRONIC/HARDWARE PARTS; 11.1 IN. W,5.4 IN. H,10.5 IN. LONG; UPPER SECTION OF LRU AND PROVIDES MOUNTING SURFACE FOR RECEIVER CIRCUIT IF MODULES A1/A2"