The Rohde & Schwarz NRVD Dual Power Meter Mainframe is designed to read various heads from DC-40GHz.
Typical applications are reading forward powers via DDCs for radiated immunity or reading both forward power & jig voltage on conducted immunity systems.
Probe heads are found under item numbers:
693 - URV5-Z4 Insertion unit 100kHz to 3GHz
694 - NRV-Z53 Thermal Probe DC-18GHz, inc. integral 20dB attenuator
695 - NRV-Z51 Thermal Probe DC-18GHz (External attenuator may be required)