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Help needed please!
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Topic: Help needed please! (Read 313 times)
the gnome-ads
First Steps
Posts: 9
Karma: +0/-0
I haven't set a personal text yet
Help needed please!
«
on:
May 22, 2012, 07:46:50 pm »
Can anyone tell us how to 'project a waypoint' on the good old yellow etrex H
What's foxing me is I can only enter tenths of a mile - can I change that to feet?
Maybe that's all I can do with the basic technology
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JimJinks
Rambler
Posts: 152
Karma: +2/-6
Keep up!
Re: Help needed please!
«
Reply #1
on:
May 23, 2012, 09:20:50 am »
If your 'compass' screen can show distance to a waypoint in feet, calculate a reverse bearing.
http://www.sandcastle.me.uk/gmoore/anvil%20of%20thought/CSM%20Bearings.pdf
e.g. if you want 500 feet at a bearing of 100 degrees then mark your current position, 'go to' that waypoint and then walk away until your screen says you are 500 feet away on a bearing of 280 degrees (100 + 180).
If the bearing you want is greater than 180 then substract 180, ie 280 becomes 100.
Else use a real compass!
Or if you can take the numbers home use Fizzycalc on your PC
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Founder Member
the gnome-ads
First Steps
Posts: 9
Karma: +0/-0
I haven't set a personal text yet
Re: Help needed please!
«
Reply #2
on:
May 23, 2012, 01:31:00 pm »
Thanks for that advice. In the end we used a compass
.......and got it right!
Always willing to learn though
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