Comet CF-530
The CF-530 model is a duplexer that allows you to transmit/receive on HF/50/70 and 144/430 MHz bands simultaneously. By using one or two CF-530s, transceivers and antennas can be connected via a coaxial cable. The high-quality combined filters of the CF-530 also work to prevent TVI (the isolation of each connector is greater than 45 dB). When using the CF-530 for one frequency, the other connectors can remain open, but adding an additional dummy load will be more optimal.