Garmin GPS antenna.

[emudryj]

I need to mount the GPS antenna for my 4210.

Garmin included 3 different ways to mount the antenna and one of it would be with the option under the T-top... Did anybody used this configuration...??? have you noticed any decrease of signal on the GPS by putting it under the T-top.???

[b_arrington]

I haven't mounted it there, but IIRC the new antennas are considerably more sensitive than previous models. They should have no issued with signal detection. Just don't mount it under and metal plate.