The Keysight Technologies 11930B limiter provides input protection for a variety of RF and microwave instrumentation. Failure mode for the limiter is either an open circuit or a short circuit to ground, thereby protecting the instrument from damage. The Keysight 11930B provides the same protection to spectrum analysers and sources.

Features superior RF performance with greater than 24 dB return loss and -40 dB repeatability
Unmatched quality and reliability minimizing measurement uncertainty
Superior performance optimizing your test equipment capability