The PRO-DIPX 400/440-TNC XS from Amphenol Procom is a Diplexer with Frequency f1 DC to 400 MHz, Frequency f2 440 to 520 MHz, Power 50 W, Insertion loss 1 dB, Insertion loss f1 1 dB. Tags: Module with Connectors, Cavity. More details for PRO-DIPX 400/440-TNC XS can be seen below.