Power Reference - HP E4418B User Manual

Specifications
Power Meter Specifications

Power Reference

Power Output
1.00 mW (0.0 dBm). Factory set to ±0.7% traceable to the US National
Institute of Standards and Technology.
Accuracy
±1.2% worst case (±0.9% rss) for one year.
HP E4418B User's Guide 5-5