Its not interference. its done it every time ive flown it, in 3 places, one of which is 15 miles from where i usually fly... i know its really weird, i was kind of bewildered my self... its a combonation of a really good A and a really really bad B... i cant beleive that its so bad, i acually tried to get a B from the store.. i could take it back but im too lazy..