The F503ME is a calibration kit for self-calibration of the SVA1000X vector network analyzers. Open(M), Short(M), Match(M, 50), Through(MM), 50 ?, DC-4.5 GHz, N-type connector. Features Impendence: 50 O Power: 1 W Interface Standard: IEC 60169- 16 Durability: > 2000 Torque: 1.35Nm Key: 19mm Temperature: -15 ? ~ +35? Technical data Type Connection Specification Open N(Male) DC – 4.5 GHz, phase deviation = ± 1.0° Short N(Male) DC – 4.5 GHz, phase deviation = ± 1.0° Load N(Male) DC – 4.5 GHz, SWR = 1.04 (return loss = -34 dB) Through N(Female) - N(Female) DC – 9 GHz, SWR = 1.035 (return loss = -35 dB), insertion loss = 0.1 dB, Delay = 125.4 ps