Two radios (2m and 70cm) with one antenna using this?

[Quickcall]

I've got one 2 meter radio and a 70cm radio, if like to have them on one dual band antenna. Would a OPEK DU-500UF - VHF UHF Ham Radio Duplexer work for a setup like this? Maybe something else?

OPEK DU-500UF - VHF/UHF Indoor Duplexer DU500

[mmckenna]

Yep, that is exactly what that product is for, VHF radio and UHF radio into a dual band antenna, OR a dual band radio into separate VHF and UHF antennas, she'll work either way.

In your case, connect the common port to your dual band antenna. Connect the 1.3 - 225MHz port to your VHF radio, and the 350 - 540MHz port to your UHF radio.