Due to its wide frequency range of 500kHz to 1.3GHz and directivity of >/=40 dB, the 8503B S-Parameter Test Set is considered one of the best in the industry. Frequency response: Transmission (S1, S2): ?1 dB, ?12? from 0.5 to 1300MHz; Reflection (S1, S2): ?2 dB, ?20? from 0.5 to 1300MHz): ?15? from 2 to 1300MHz. Maximum operating level of ?20 dBm. Connectors: Test ports, 75 ohm APC-7, all other RF connectors, 75 ohm Type N(F); bias inputs, BNC female. DC bias input: ?30 VDC, ?200 mA.
