thanx for the input.. the radio is a fut. 6ex i'll check all the things mentioned and chk back soon..the radio is more less a entry level, had it for a cpl yrs..fly'n my 40 size stuff .i hav'ent touched the potentiometer......yet . i'll check things before i tweak the pot just to see....thanx tim .........ok thoughly examined her & yes the one hinge gap is 1/2mm larger, and the horn is prolly a 1/2mm diff. i cked out the pot adj to see how that works ..tweaked it jst a smidge and now there good thanx all, you guys are great..tim