... accuracy and high performance .FREQUENCY COUNTER SP3382 III - MICROWAVE FREQUENCY COUNTERFeature. Measure frequency up to 26.5GHz. Dynamic ... GPIB optionalSP3382 I/II/III/IVCH A1MΩ impedanceMeasure frequency range10Hz~80MHzResolution1Hz, 10Hz, 100Hz, 1KHz, 10KHz, ... . input level1Vrms (+13dBm)Damage level3Vram(+23dBm)50ΩimpedanceMeasure frequency range60MHz~3.2MHzResolution1Hz, 10Hz, 100Hz, 1KHz, 10KHz, ...