The SPCL-00754 from K&L Microwave is a 4-Channel Multiplexer that operates from 2 to 18 GHz. The channels have passbands from 2 to 4 GHz, 4.4 to 8.0 GHz, 8.4 to 12 GHz, and 12.4 to 18 GHz with an insertion loss of 2.5 dB and a crossover loss of less than 6.5 dB. This rugged multiplexer is qualified for military airborne platforms and is available in a module with SMA-female connectors. It is designed specifically for electronic warfare receivers.