Yes, that's how it's supposed to work. Here's the issue...I'm using a TenTec Omni 6, and interfacing it to the computer (and Logic) via a USB/RS-232 converter. There's a second port on the radio to use Icom CI-V control, but you can't use both ports at the same time as best I can tell, so I can't see a way to get the decoder to interface to the radio and still have the radio interfaced to Logic. If I could address the band decoder with USB/RS-232 via Logic, that would fix the issue. Of course this assumes that Logic would pass that band data in that manner via one of the setup menu interface selections.
73 Doug W5GA