Microwave Frequency Counter, 10Hz to 18.0GHz .12-digit LED display. Band 1 is from 10Hz to 100MHz (sensitivity of 25 mV rms) with 1Mohm impedance (BNC) ,Band 2 is from 10MHz to 1.0GHz (sensitivity of -20 dBm) with 50-ohms impedance (BNC),Band 3 is from 1. |