Have to agree that getting a computer radio with model memory is the right approach, so don't get the DX5e. That said, the DX5e (at least new ones) is full range.

From Spektrum's website.
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The DX5e brings together the unbeatable control of Spektrum 2.4GHz DSMX technology with a simple, easy-to-use design that's ideal for anyone who is new to RC or the avid modeler on a budget. And while it is one of the best values in RC, it is anything but a stripped down transmitter. In fact, it boasts many features you simply won't find on most transmitters in its price range. Things like a Hi/Lo control rate switch, an extra function switch and available Delta wing mixing.

And because it's a full-range 2.4GHz transmitter, you can use the DX5e with everything from ultra micro helis and airplanes to bigger scale trainers and sport planes. It's a great way to try out the exciting world of Bind-N-Fly aircraft, too. It's 5-channels and extra functions will allow you to fly just about all of them.