Model CF-413 is the duplexer for transmitting/receiving all 2 bands of 430MHz and 1200MHz at the same time. Using one, or two CF-413, you can connect transceivers and antennas by one coaxial cable.
The combined high quality filters of CF-413 work to prevent occurrence of TVI on the other hand (Isolation of each connectors are over 55dB).
When using CF-413 for one frequency, the other connectors can be remain as open, but additional dummy load will be much better.

Specifications:

Band pass Frequency & insertion loss:
1.3 -- 460MHz / 0.25dB or less
840 -- 1400MHz / 0.4dB or less

Impedance : 50 Ohms

VSWR : 1.2 or less

Max. Input power : 1.3 - 150MHz / 800W (PEP)

Max. Input power : 350 - 500MHz / 500W (PEP)

Max. Input power : 840 - 1400MHz / 200W (PEP)

Isolation : more than 55dB

Weight : approx.0.3kg

Input 1 x N-Connector Female Socket

Output:1.3 -- 460MHz (UHF Male) AND 840 -- 1400MHz (N-Connector Male)