[OSM-talk] best GPS for trekking

[Karl Newman]

On Thu, Apr 16, 2009 at 9:34 AM, Joe Richards <joefish75 at yahoo.com> wrote:

>
> Well I'd like to collect lots of data, even if it involves me taking a pack
> of those 2GB SD cards that I keep switching every day or two... Obviously
> taking normal AA batteries is a plus, and I am thinking of getting one of
> those solar chargers that covers the top of your backpack (yes seriously!)
>
> Browsing the Garmin eTrex devices, I notice even the ones with a proper
> screen aren't all that expensive
> http://www.gpsw.co.uk/details/prod3549.html
>
> I could then load it up with maps that show any existing data from OSM
> and/or any other sources, e.g. http://www.nepalgpsmap.com/en/maps.html to
> keep track of how far (and high) we're going and whether or not waypoints
> have already been marked...
>

One 2 GB MicroSD card should be enough for years of data, even at 1 sec
resolution in GPX format. Just make sure you format the card as FAT32 so you
can have more efficient storage of many small files (assuming you get a
Garmin). Also note that your tracklogs share space with maps on the card,
but even if you leave yourself 100 MB or so, that should be plenty of space
for many days of high-frequency tracklogs.

Karl
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