RF Electronic Calibration Module (ECal) 300kHz - 7.5GHz, 7-16, 2-Port, opt.: 00F = Both connectors 7-16 mm are female Frequency range: 300 kHz to 7.5 GHz Fast full two-port calibration with a single connection Simple non-insertable device calibration NIST traceable accurate calibrations Reduced connector wear USB interface for direct control with PNA and ENA series of network analyzers Reliable solid-state switching Mixed connector options available (3.5 mm, Type-N 50 ohm, and 7-16)