The MIL-ALDCBS1X4 from GPS Networking is a GNSS Splitters with Frequency 1.1 to 1.7 GHz, Gain 17 to 20 dB, Isolation 22 dB (L2), 24 dB (L1), Noise Figure 2.5 to 2.75 dB (L1), 5.5 to 6 dB (L2). Tags: Module With Connectors, DC Blocked Splitter. More details for MIL-ALDCBS1X4 can be seen below.