Product: GPS
GPS Aerial Hat   (+1)  [vote for, against]
Good reception and shade from the Sun.

A GPS aerial should be high, horizontal and uncovered (ie not in a pocket or bag) for best reception. Putting the aerial in a hat would allow it unobstructed access to the sky and would allow the aerial to be larger than it otherwise would be in a handheld unit. You'd have to remember to unplug your hat before you took it off, though.
-- st3f, Jun 01 2005

And take it off in thunderstorms...
-- hippo, Jun 01 2005

random, halfbakery