Unit tested and operation verified

Unit very clean 

Manual on CD included

    HP 11664B

The 11664B Coaxial Detector was designed for use with the 8757, 8756, or 8755 in ac detection mode only. The unit covers the frequency range of 10MHz to 26.5GHz, uses 3.5 mm connectors and has a dynamic range of +16 to -60 dBm.