This room contains the transmitter and receiver equipment for the SPS-30 Height-Finder Radar. The SPS-30 uses the large, dish shaped antenna on the Hornet mast. Note the black, rectangular wave guide near the space overhead. Radar pulses travel through the wave guide and up to the radar antenna. Returning echo pulses travel back down the wave guide to the radar receiver. Target location data is then sent to the appropriate radar repeaters in the CIC for display.