John Smith wrote: > On 17 February 2010 01:40, John F. Eldredge <j...@jfeldredge.com> wrote: > >> Frequently you can't get a position fix at all, if the building has much >> metal in its structure. I can't get a position fix from inside my house >> unless I am near a south-facing window, probably due to a metallic-foil >> vapor barrier in the attic. >> > > It has little to do with the material it's made of, it's all about how > much mass an object has, the more mass the more it will absorb RF. Is this correct?
I assumed the reason I had trouble getting reception on board trains because of what their roofs were screened with. I can't believe they'd put much mass up there. Cheers Dave F. _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
