The F603FE is a calibration kit for self-calibration of the vector network analyzers SVA1000X series. Open(F), Short(F), Match(F, 50), Through(FF), 50 ?, 4.5 GHz, SMA-type female.Features Impedance: 50 O Power: 1 W Interface Standard: IEC 60169-23 Durability: > 2000 Torque: 0.9Nm Wrench: 8mm Temperature: -15 ? ~ + 35 ? Technical data Type Connector Specification Open 3.5 mm jack DC – 4.5 GHz, phase deviation = ± 1.0° Short 3.5 mm jack DC – 4.5 GHz, phase deviation = ± 1.0° Load 3.5 mm jack DC – 4.5 GHz, SWR = 1.04 (return loss = -34 dB) Through 3.5 mm jack to 3.5 mm jack DC – 9 GHz, SWR = 1.035 (return loss = -35 dB), insertion loss = 0.2 dB, delay = 56.8 ps