[OSM-talk] best GPS for trekking

[Jason Cunningham]

2009/4/16 Karl Newman <siliconfiend at gmail.com>

> On Thu, Apr 16, 2009 at 11:54 AM, Igor Brejc <igor.brejc at gmail.com> wrote:
>
>> Lambertus wrote:
>> > Igor Brejc wrote:
>> >> I think 5 sec interval when walking is quite enough - realistically
>> >> that's less than 7 m of distance between two points. The problem with
>> >> Garmins (at least eTrex) is that they only really use unit's internal
>> >> RAM for storing tracks and they store up to 10,000 points there. When
>> >> storing tracks on SD cards, Garmins do a lot of simplifying, so the
>> >> tracks end up being useless.
>> >>
>> >
>> > This is not the case with Vista HCx and 60CSx when the settings are
>> > correct:
>> > In the track menu goto Setup
>> > - Enable the Wrap When Full option
>> > Goto Data Card Setup menu
>> > - Enable Log Track To Data Card option
>> >
>> > Now you can log the raw trackpoints to the SD-card practically forever.
>> >
>> >
>> You're right - I've just compared the GPX from the internal memory
>> (Vista Cx) with the one from the SD card and they seem to be exactly the
>> same. Hmmm I'm SURE I viewed these a way back and they were all
>> mangled.... You learn new things every day.
>>
>> Igor
>>
>
> If you "save" your internal track, it simplifies (mangles) it. But the
> track on the card will always have the original data.
>
> Karl
>

I only realised last week the importance of setting up the Garmin GPSmap
60C(S)x to save gpx to the SD Card. They appear to be more accurate and have
time "stamps" retained. It only took me a year to work out that files saved
to the RAM were edited! And with a 2GB sd card I can let a huge amount of
tracks build up before worrying about editing.

The GPSmap 60C(S)x is a very rugged model, which is something take into
account. As regards batteries, I guess you should experiment before you head
off and decide whether its easier to carry a lbox of batteries or recharger.
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