I have mine in a 40¡¯ ISO shipping container with the doors sealed shut, and to my amazement, the very sensitive receiver is always locked on multiple sats. I think it would be rather difficult to stop it from receiving under any circumstances¡
I know it won't work without modifications, but I am considering cutting a square hole in my case and mounting the GPS just below the top cover.? About the only thing holding me back is my poor metal working skills.?? I have a house with a metal roof and this GPS works so well that it receives 7 to 10 satellites anywhere I put it.?? I don't think there is a need to have it on a long cable mounted where it can see the sky.
Has anyone tried something like this?? And did it work ok?? I suppose the extra metal above the ground plane could de-tune the antenna.?