The Keysight 85135F is a 62.9 cm (24.75 in) long1 flexible cable set composed of two 2.4 mm female2 to 7 mm connectors. Cable frequency range is dc to 18 GHz with a return loss of 17 dB or better. Insertion loss is 0.3 * sqrt (f) + 0.2, where f is frequency in GHz, for the test port connector and 1.5 dB at maximum frequency for the device connector. Phase stability of semi-rigid/flexible cables is specified with a 90 degree bend using a 4 to 3 inch radius. Stability1 of the Keysight 85135F is less than 0.12 dB and phase is 0.13*f + 0.5, where f is frquency in GHz.1 Cable length and stability are supplemental characteristics.2 Special rugged female connector is designed specifically for connecting to the network analyzer test port, but does not mate with a standard male connector.