 It features the same arrangement of the two large scanners attached to front and ear sides of a rotating cabin that houses the transmitter/receivers.The system operates in S-band and L-band, each parabolic scanner being illuminated by stacked horn feeds to generate families of multiple beams.There are five S-band transmitter/receivers and these are thought to operate with the lower of the two antennas, while the L-band feeds illuminate the upper scanner array.