Model 4455 Digital RF Receiver is a state-of-the-art receiver that provides a compact, cost-competitive, flexible solution to a wide variety of communications link scenarios. The 3U Rack Mountable Chassis is available in a dual-channel configuration with a diversity combiner. Each channel is completely independent and is able to acquire on three (3) RF Bands: S Band, Upper L Band, Lower L Band, and optional C Band or P (CIF) Band. Other Multi-Band options are available.