Additional Features: Measures reflection and transmission characteristics of two-port devices in either direction with a single connection Includes a frequency doubler that can be switched in to measure 3 MHz to 6 GHz in a single sweep 15 dBm at the test port Includes a programmable step attenuator The Agilent 85047A, S-Parameter Test Set provides the capability to measure transmission and reflection characteristics (including S-parameters) of two-port devices in either direction with a single connection.