The DX5e uses DSM2 technology, which means any DSM2 compatible receiver should work with it. Take your pick: http://shop.ebay.co.uk/?_from=R40&_trks ... Categories

I combined mine with one of these handsets when it cost £11.99: http://cgi.ebay.co.uk/Spektrum-Controll ... 3cadc35762
and got a 2.4GHz setup for £22 (which is already more reliable than the Radio Link sets)

That transmitter is very basic though, the DX5e has a lot more to offer.