The Agilent 44476A is a microwave switch module. Three independent SPDT 50 Ohm coaxial relays with excellent electrical performance from DC to 18GHz. make up the 44476A. For general purpose microwave switching applications, the module can be used to switch separate signal sources for a multi-band receiver/transmitter testing application. The 3-mm SMA connectors on the module edge allow ease of wiring.