sized) bluetooth GPS receivers that send their data to a connected
device like a smartphone or PDA (do a search for "Emtac GPS" for an
example). You then need software on your PDA to process the GPS data
stream to do useful things with it. A neat solution if you are going to
use the equipment indoors or in a car.
If you want to use the GPS outdoors for walking, then you're better
going with the type of device you can buy from Field and Trek etc, since
these will be weather proofed and have the right sort of navigation
software on them.
The first step is to look at the FAQ in sci.geo.satellite-nav. There are
loads of links.
The choice depends on what you want most. I have a Garmin Vista, which I
use for walking & cycling. It's not an ideal in-car unit (screen too small,
likes to be flat so at the wrong angle to see the screen, no voice-prompt)
but its the greatest for walking (small, likes to be flat .... etc). Other
advantages are - batteries last all of a long day's walking, I can make my
own maps, accurate, tough & waterproof.
The iPaq would be way too big and fragile for roughing it, and the battery
life is NBG, but may be good for in-car.
Perhaps both ...!
My philosophy is it depends what you want the GPS for.
I've used map and compass for years with no problems.
Last November I misstimed my walk from Seathwaite via Honister Pass, Scarth
Gap, Blacksail Pass, Styhead Pass and got "stuck" in foul conditions near
Styhead. Discretion being the better part of valour, I retreated to Wasdale
Head where I found an overnight stop. Mrs Buchannans farmhouse B&B is much
I bought the GPS to identify waymarks and pinpoint my position in
conjunction with map & compass - not instead of map & compass. It adds a
different dimension to walking but my Etrex basic, bog standard does just
what I want - I suppose the message is don't get carried away buying bells &
whistles if all you need is a GPS to tell you where you are.
nowhere near a gasworks
will my GPS work in Guantanamo Bay
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