the problem is
sadoun didnt make the device. sadoun has the manual adjust it. i would rather get a
birdog then to get a sathawk. reason that i dont have to calibrate it. its a hassle. i have 5 birdog's and 1 sf3000.. i use to own 2 sathawks i quickly sold it. cause its buggy and cannot manually change transponders when the transponder goes out. the sf3000 can