This has been posted before, but I wanted to share a little mod success... I ordered the 4 mm gps antenna from digikey and performed the antenna exchange as described elsewhere on the forum. I got between 4 and 7 satellites inside my house on my kitchen table! I brought it outside briefly in the freezing cold and quickly got 6-8 satellites. In conjunction with the copper shield mod, I did not see any drop in satellites while filming on the ground. Anyways, I wanted to share and encourage anyone who might be so inclined to change the antenna that I had success. Happy New Year!