Precision Coaxial Termination DC 18GHz Option: 701 = APC-7 Connector The Agilent (now Keysight) 909F family of precision low reflection loads are intended for use as calibration standards. Tantalum nitride on sapphire thin-film technology is used for exceptional long-term impedance stability. To ensure the best possible wear resistance characteristics, gold-plated beryllium copper has been used for the connector contacts. The loads are available in APC-7, type-N male and type-N female configurations. (This unit has APC-7) RF performance (5,6,18 GHz with APC): Max. SWR at 5 GHz, APC-7: 1.005 Max. SWR at 6 GHz, APC-7: 1.01 Max. SWR at 18 GHz, APC-7: 1.15 RF performance (2,3,6,18 GHz with type-N): Max. SWR at 2 GHz, type-N: 1.007 Max. SWR at 3 GHz, type-N: 1.01 Max. SWR at 6 GHz, type-N: 1.02 Max. SWR at 18 GHz, type-N: 1.15