Question on Portable GPS?

Question

I was in LA and my GPS constantly lost signal

Why is that ?

Answer 1

if there is a lot of buildings around at the time of signal loss, it could be that something is blocking the satellite reception. Trees, mountains, any type of buildings can cause interference. I have a Nuvi 360 and whenever I am in a metropolitan city with a ton of skyscrapers, it always tells me that it can't locate the satellites. Then as soon as I hit the open road where it has a good area of open sky, it connects right back.