The PRO-ATT 3 dB-25-3-N(f) from Amphenol Procom is a Fixed Attenuator with Frequency DC to 3 GHz, Attenuation 3 dB, Power 25 W, Weight 650 gm, Attenuation Accuracy ±0.5 to 1.0 dB. Tags: Module with Connectors. More details for PRO-ATT 3 dB-25-3-N(f) can be seen below.