I'm not assuring you, but I think channels 1, 6 and 11 could be recommended as these minimise the potential for interference.well just had a rowe wit sky broadband department told them the wireless range was crap. he assured me he could boost it, well he told me to run channels 6 11 or 13
Assuming you are just using a laptop with internal WiFi, consider trying a cheap 'high gain' antenna on the AP or, if you want to go ghetto, knock up a DIY parabolic reflector.right now im testing ch 6 and im getting 1 bar half way up my garden now...
only problem with that is the router dosnt have a place for a Ariel!!