I have a Garmin eTrex Venture GPS unit. Works fine in here in Pasadena. I get the minimum number of satelite needed to make it work. I dont use any external antennas. It works fine out of the box plus batteries.
I visited southern China and was sad to find that i could only pick up 1 satelite from the rural area i was in. I went to a 'larger' city and tried it from the roof of my hotel, and still just 1 satelite. There were no significant mountain ranges within sight, and I could see a long way off. I later visited Hong Kong where there is lots of technology, but only could hit 1 and sometimes 2 satelites. Not enough to work. When I returned to Pasadena I opened my suite case, fired it up, and it worked like a charm. Does our military cripple GPS signal strength over China? Can anyone offer another explaination? Chris
