Features:
Factory set to 30 dB ± 0.05 dB at 50 MHz
SWR: <1.05 at 50 MHz
Traceable to U.S. National Institute of Standards and Technology (NIST)
1 year standard warranty
The Keysight 11708A 30 dB attenuator is supplied with 8480 series power sensors with the "D" suffix, for calibration with the power meter 0 dBm, 50 MHz reference.