DBSPECTRA's DB4368BPD-5B 450 – 470 MHz five-channel UHF public safety best practices transmitter cavity dual sub-band combiner. The DB4368BP transmitter cavity combiner series is designed for public safety critical communications systems. The combiner consists of 8 in copper bandpass cavities. Each channel includes a broadband dual-stage isolator with 100 W load and RF sampling port. The sampling port provides the ability to tune each channel under power preventing system downtime concerns. The output of the combiner will have a 7/16 DIN Female connector.