26.5GHz Microwave Frequency Counter/Power Meter/DVM; GPIB and RS-232 Interfaces Standard The Agilent (now Keysight) 53148A is a full featured 26.5 GHz CW microwave frequency counter, a true power meter, and a dc DVM. It saves rack space in an ATE system and is ideal for installation and maintenance of point-to-point microwave links. The 5314xA microwave counters have the capability to make an accurate power measurement via 848xA thermocouple power sensors. Single, ultra-wideband CW microwave counter input, 50 MHz to 26.5 GHz -70 dBm to +44 dBm power meter range with Agilent 8480 series sensors High resolution/accuracy +/- 50 Vdc DVM GPIB and RS-232 interfaces standard