[pct-l] Altimeter watches, GPS

[flarry at osjoseph.org (Fr. Larry)]

Altimeter watches read the altitude from barometric pressure and thus vary
in accuracy as the barometer changes, whereas GPS altimeters give more
accurate reading from satellite calculation.
www.osjoseph.org 
www.sjoachim.org 

-----Original Message-----
From: pct-l-bounces@mailman.backcountry.net
[mailto:pct-l-bounces@mailman.backcountry.net] On Behalf Of Vic Hanson
Sent: Saturday, July 16, 2005 3:52 PM
To: pct-l@mailman.backcountry.net
Subject: [pct-l] Altimeter watches, GPS

I'm looking a getting a new altimeter watch and see that Campmor has the
Nike ACG Ascent Compass Watch on sale for $80 and the High Gear AXIS Wrist
Computer for $90 (both with altimeter and compass). Does anyone have
experiance with either of these? I currently have the Timex Helix but it
drifts alot. I finally realized that the indicated altitude is affected
greatly by the tempature. Is this the case with all altimeter watches? The
Nike says it has "zero drift technology. I'm wondering if it works?

I am also thinking about getting a GPS, looking at the Garmin eTrex Legend
and Venture, both without altimeter as I have that on the watch, which seems
more practical as it is always "on" and easy to see. The main differences
that I see is that the Legend has 8 MB of memory verses the Venture's 1MB
and also has the Americas base map included. How much memory is needed
(specifically for the PCT map) and is the Americas base map of any value?

Thanks for any help.

Vic
PCT Class of '06


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