On Wed, Mar 26, 2014 at 9:31 PM, John Kellas <sales@mparam.com> wrote:
> Is this because CHIRP will not allow 'split' as an option for duplex because
> of the radio model number for some reason?

Yes, exactly. If you look at the 5888 in the Model Support page,
you'll see it doesn't support Odd Split.

http://chirp.danplanet.com/download/0.4.0/Model_Support.html

I believe this is a limitation of the Chirp implementation, not the
radio itself. Chirp developers haven't taken the time to support every
feature on every radio. This is just one detail that was skipped,
because offset is equally functional.

Chirp is smart enough to convert an odd split to an offset when
importing, as you have found.

Tom KD7LXL