N4691D 2-port, 300kHz – 26,5GHz Ecal module, 3,5 mm

The Keysight N4691D microwave electronic calibration (ECal) module makes calibration of Keysight vector network analyzers fast, easy and accurate. It is a precision 2-port ECal module that supports 3.5 mm connectors with a frequency coverage from 300 kHz to 26.5 GHz or DC to 26.5 GHz (Option 0DC).
The N4691D  is available in male/male (option M0M), female/female (option F0F), and male/female (option M0F) connector configurations. 

This ECal module is an ideal solution for calibrating vector network analyzers. Performing a full two-port calibration takes less than half the time and number of connections versus traditional mechanical cal kits. The operator simply connects the ECal module to the vector network analyzer via USB and the firmware controls the rest, thus reducing the chance for operator error. Wear and tear on connectors is reduced as well, lowering repair costs on both the test port connectors and calibration standards.