The D1810M01 from Microwave Circuits is a Diplexer with Frequency f1 1.75 to 1.78 GHz, Frequency f2 1.84 to 1.87 GHz, Insertion loss 2.5 dB, Frequency 1.75 to 1.78 GHz / 1.84 to 1.87 GHz. Tags: Module with Connectors. More details for D1810M01 can be seen below.