The Keysight 8493C coaxial fixed attenuator provides precision attenuation, flat frequency response, low SWR over broad frequency range at a low price. The attenuator has APC-3.5 connectors and is available in nominal attenuations of 3 dB and 6 dB, also 10 dB increments from 10 dB to 40 dB.This attenuator is swept-frequency tested to ensure it meets specifications at all frequencies. Calibration points are provided on a nameplate chart attached to each unit.