Description Description HP 11518A 12.4-18GC Adapter Form Factor - Harmonic Frequency Lo-2.-6.1 GHz; RF-12.4-40 GHz; IF-DC-2 GHz Input Connector - Waveguide Input Instrument Type - Harmonic Mixer Maximum Frequency - 40 GHz Max Minimum Frequency - 12.4GHz Min Output Connector - Coaxial Output View AllClose