The PRO-ATT 3 dB-2-3-N from Amphenol Procom is a Fixed Attenuator with Frequency DC to 3 GHz, Attenuation 3 dB, Power 2 W, Weight 71 gm, Attenuation Accuracy ±0.2 to 0.3 dB. Tags: Module with Connectors. More details for PRO-ATT 3 dB-2-3-N can be seen below.