Calibration 1 GHz steps Temperature coefficient: Less than 0.009 dB/°C Operating temperature: 0°C to +55°C Input power: +28 VDC ±2 VDC at 15 mA typical for NC346 A, B & D VSWR Less than 1.15:1 from 10 MHz – 5 GHz for units with 5 – 7 dB or 14 –16 dB ENR
Regulator:Built-in Voltage coefficient < 0.002 dB/%ΔV