Comet CF-706 - 1.3~56/75~550MHz duplexer for transmitting and receiving both 1.3/56 & 75/550MHz at the same time (ideal Icom 706 range).

Combined high-quality filters for preventing TVI. The isolation between the two connectors is more than 45dB, In the case of using the CF-706 for one frequency, the other connector can remain open, although an additional dummy load would be preferred.

Fitted with the popular combination of 2 x output leads with PL259 plugs, and input of SO239 socket. This model is well suited for the Icom IC-706 range of transceivers with its 2 antenna outputs.

When would I use this:
When using a radio like the IC-706 or IC-7100 giving all bands on one coax feed