The RPG FS-Z 110 | 3638.2292.02 from Radiometer Physics GmbH is a Spectrum Analyzer Extender with Operating Frequency 75 to 110 GHz, LO Frequency 7.75 to 13.99 GHz, Conversion Loss 22 dB. More details for RPG FS-Z 110 | 3638.2292.02 can be seen below.