Feature: 1. The MX72N duplexer is a series of inductance coils and capacitors that acts as a band-pass filter. 2. The MX72N duplexer can be used in two different ways. 3. 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. 4. Can also be used to separate UHF/VHF transmissions from UHF transmissions so that one transceiver can be connected to two antennas. 5. Used in different frequency, can not transmit at the same time. Specification: Condition: 100% Brand New Item Type: UHF+VHF Duplexer Material: Alloy Color: As picture shown Cable Length: Approx. 30cm/11.8in Operating Frequency: 144 - 148MHz & 400 - 470MHz Endurance: 144 - 148MHz: 100W 400 - 470MHz: 60W Isolation: 60dB Insertion Loss: 144 - 148MHz: Package List: 1 x MX72N UHF+VHF Duplexer Note: The MX72 VHF+UHF Duplexer is designed for indoor use. If you use the MX72 VHF+UHF Duplexer outdoors, it should only be used for short periods of time under good weather conditions. Do not use the MX72 VHF+UHF Duplexer outdoors when there is any kind of precipitation.