The Q8486D diode waveguide power sensor measures average power over the frequency range 33 GHz to 50 GHz and power range -70 to -20 dBm (50 dB dynamic range).
The Keysight 11708A 30 dB attenuator is supplied with 8480 series power sensors with the ''D'' suffix, for calibration with the power meter 0 dBm, 50 MHz reference.