Keysight (Agilent/HP) 11947A 9 kHz - 200 MHz Transient Limiter w/ High Pass Filter

In precompliance applications where a spectrum analyzer is used for measurements instead of an EMI receiver, it is always a good idea to use a transient limiter. The Keysight (Agilent/HP)
11947A Transient limiter protects the spectrum analyzer input from damage caused by high-level transients from line impedance stabilization networks (LISNs) during EMI testing for conducted emissions.

Keysight (Agilent/HP) 11947A Features:

• Protects the spectrum analyzer input from damage caused by high-level transients
• Frequency Range: 9 kHz to 200 MHz
• Insertion Loss: 10 dB
• Maximum Input Level: Continuous: 2.5 W (+34 dBm), Pulse: 10 kW for 10 µS, DC:±12 V