Agilent / HP 8508A Vector Voltmeter

The HP (Agilent) 8508A Vector Voltmeter is a fully automatic tuned receiver that makes RF voltage and phase measurements easy. Its narrow band measuring technique gives a dynamic range of over 90 dB and a sensitivity of 10 µV to trace even the smallest signal. The HP 8508A Vector Voltmeter also measures the phase difference between its two input channels with at least 0.1 degree resolution over a full +180 to -180 degree range, so they can be used for another complete set of measurements, such as electrical length, phase distortion, or impedance. The 8508A is supplied with the HP Agilent 85081B input module.