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OPEK DU-500UF - HF VHF UHF Ham Radio Duplexer
This OPEK duplexer has a seres of inductance coils and capacitors that acts as a band-pass filter. It can be used two different ways. The duplexer combines the output of the HF/VHF transceiver and the output of the UHF transceiver so that both transceivers can be connected to the same antenna. The duplexer can also be used to separate HF/VHF transmissions from UHF transmissions so that one transceiver can be connected to two antennas. This product is designed for indoor use only. Do not use outside in during precipitation.