The E11F05P37-V from CommScope is a Diplexer with Frequency f1 1710 to 1880 MHz, Frequency f2 1920 to 2170 MHz, Power 250 W, Peak Power 2500 W, Insertion loss 0.15 to 0.4 dB. Tags: Module with Connectors. More details for E11F05P37-V can be seen below.