[pct-l] Follow-up to the earlier GPS discussion

[Yoshihiro Murakami]

Good morning. (9:00 a.m., JPN )

I am an user of Map60 Csx. I cannot hike without it.  The reason is as follows:
1. The ability of GPS is superior than me.  The error of location is
within a several meters.
2. The GPS works precisely as far as  AA batterirs works. But human
brain frequently fail to decide the present location when fatigue,
hypothermia, rainy day, snowy condition, etc.
3. The GPS plays an important role, when we make a cross country
sidetrip ( sightseeing trip ). When we hike on the trail, the
localization is easy, and the necessity of GPS is small. But when we
are off tail, it suddenly became difficult to recognize the present
location.
4. When we know the present location precisely, we feel security, and
we can make important decidions rightly. So, I think the GPS will play
an important role to reduce the hikers tragedy.

I had combined the topo and city maps of the whole California, as I
had already posted. Its a great pleasure to see my exact location in
the electronic map of the GPS.



2010/5/21 Gary Schenk <gwschenk at socal.rr.com>:
> On 5/20/2010 4:39 PM, Len Glassner wrote:
>> On Thu, May 20, 2010 at 4:18 PM, Gary Schenk<gwschenk at socal.rr.com>  wrote:
>>> On 5/20/2010 3:34 PM, Diane at Santa Barbara Hikes dot com wrote:
>>>>
>>>> But I didn't have or know how to use a GPS. So instead I relied on my
>>>> watch. After a few weeks I knew what my average pace was. With the
>>>> data book and guide book and my watch, I could pass a point of
>>>> interest, check the time, check for the next point of interest and
>>>> then calculate the time it would take to get there. At the appointed
>>>> time, I could look around me for the point of interest. I could be
>>>> within 5 minutes accuracy on a regular basis this way. I came to rely
>>>> upon this means of navigation almost entirely.
>>>
>>> Yes! A watch is a very overlooked navigation aid. You did great to
>>> figure that out on your own.
>>>
>> Is this navigation or after the fact notification of a navigation
>> mistake?  Doesn't work so well when something modifies your pace, like
>> snow, or blisters.
>>
>
> This is navigation. Say there is a canyon you need to turn into, you
> know from your map it is a half mile away. Knowing it will take you
> about 10-15 minutes to hike that distance, your watch becomes a valuable
> navigation aid, particularly in complicated terrain.
>
> Knowing your pace in different conditions comes with experience.
>
> Gary
>
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-- 
Sincerely
--------------- --------------------------------------
Hiro    ( Yoshihiro Murakami )
HP:http://psycho01.edu.u-toyama.ac.jp
http://picasaweb.google.co.jp/CompleteWalker/
Backpacking for 30 years in Japan
2009 JMT, the first America.
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