We have a Lexion 760 13 plate with Class Gps Pilot using egnos.It works really well when it is receiving satellite signal but when you turn at the end the grain tank seems to block the signal and it won’t work, worse with a full tank. Class say the receiver needs to be replaced with a more up to date one that would receive more satellites but comes at quiet a cost.Could we relocate the receiver on top of the grain tank to get a better signal or can we buy a non genuine receiver that would be compatible?