The Boonton 92C offers full scale voltage ranges of 3 to 3000 mV in 7 ranges. The standard dBm range is -50 to +23 dBm (+63 dBm up to 700 MHz with optional 100:1 voltage divider). The frequency range is 10 kHz to 1.2 GHz, with an uncalibrated response to approximately 8 GHz. Basic accuracy is ±(1% of reading + 2% fs). True rms response for inputs up to 30 mV.