I HIGHLY recommend Berg 7P receivers. They're very small, and I've never had ANY interference with them. I believe they are single conversion, but don't quote me on this.

[link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXLBY9&P=0]http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXLBY9&P=0[/link]
[link=http://www.castlecreations.com/products/berg_7-channel.html]http://www.castlecreations.com/products/berg_7-channel.html[/link]

Kerry