PMI Model RMR-818-77-NRL is a Microwave Pulse and CW Monitoring Receiver, covering 8 to 18 GHz with External Replaceable Bandpass Filters. The Signal is Processed with an Extended Range Detector Log Video Amplifier (XDLVA).
Additional Product Information under, http://www.planarmonolithics.com/products/RMR-818-77-NRL.htm