Thread: handheld gps loosing signal

i have a garmin etrex handheld gps iv been using for a few years now, im finding that it looses signal alot of the time especally in thick bush, gullies and creeks etc making a pain in the arse to backtrack and find what iv marked.

im wondering would upgrading to a better quality gps solve this problem?
i was looking at speding some money on a decent newer garmin with maps etc, do they have stronger gps signals? are they more reliable?

any help is appreciated.

cheers