The PRO-ARPS4-GPS-N-DCI-DCO1 from Amphenol Procom is a Multicoupler with Frequency 1.575 GHz, Gain 4 dB, Isolation 20 dB, Noise Figure (Amplifier) 3.5 dB, OIP3 15 dBm. Tags: Module with Connector. More details for PRO-ARPS4-GPS-N-DCI-DCO1 can be seen below.