Keysight Technologies 11867A RF Power Limiter, 1.8GHz max, 50Ω, 30V dc max, 10W max input

The Keysight Technologies 11867A RF limiter can be used to protect the input circuits of spectrum analysers, counters, amplifiers, and other instruments from high power levels with minimal effect on measurement performance. This limiter 10 Hz to 1800 MHz reflects signals up to 10 watts average power and 100 watts peak power. Insertion loss is less than 0.75 dB

Frequency Range is from 10 Hz to 1800 MHz
Insertion loss is less than 1.0 dB
Reflects signals up to 10 watts average power and 100 watts peak power