The Auto mode is usually more efficient. It records less often on
straight parts of your track and more often in curved or meandering
portions.

--- In etrex@yahoogroups.com, "Dennis Jewitt" <dennis.jewitt@...> wrote:
>
> Hello Bill,
> Thanks for the advice. The track log is much bigger
than I had hoped. I have made up a serial lead and installed MyGPS
which works well . By downloading the track memory and saving the
track log as a .txt file and then opening with notepad I can get an
idea of the sampling frequency. I will carry out a few evening walks
after work this week and investigate the settings. Maybe a good start
would be to use the "Distance" rather than "Auto mode" and set to
record at 10m intervals, that should cope with 100 km which is enough
range for the Sottish winter walk. I can understand the "Distance"
and "Time " modes but am unclear about the "Auto" so will avoid it.
>
> The EasyGPS looks excellent for managing waypoints and storing tracks.
>
> Thanks for your help
>
> Dennis
>
> ----- Original Message -----
> From: Bill Fuhrmann
> To: etrex@yahoogroups.com
> Sent: Sunday, January 04, 2009 9:10 PM
> Subject: RE: [etrex] e trex H track log size ??
>
>
> > Does anyone know the size of the track log memory ? I am
> > planning a 4 day hike and wonder if Record Interval "Auto"
> > and Resolution "Low" are appropriate settings.
>
> The track log is 10 thousand points.
>
> You can also copy track logs to the "saved" logs but it drasticaly
strips
> down the data points and removes the time information when you do
that. I
> don't do that, so I can't tell you how many points it holds in each.
>
> My suggestion is to try a couple hour hike with your test settings
and see
> how big of a log it creates.
> Take a look at how it handles turns and altitude changes (if that is
> important to you).
>
> If you will have a computer (even a hotel computer) available,
check out
> easy GPS at www.easygps.com/ .
> You can install it once on a USB memory device and use it on any
computer
> that has a serial port for your gps.
> Unfortunately, I think that all of the USB to serial devices need
a driver
> that cannot be installed on a locked computer like at a hotel of
library.
>
>
>
>
>
> [Non-text portions of this message have been removed]
>