3.5mm Calibration Kit 30kHz-3GHz The 85033C 3.5 mm Calibration Kit contains precision 3.5 mm standards used to calibrate the 8753C Network Analyzer (not included) and its 50 ohm test sets for measurement of devices with 3.5 mm and SMA connectors. Standards include fixed terminations, open circuits, and short circuits. Precision 7 mm to 3.5 mm adapters are included for accurate measurements of non-insertable devices.