Dartmoor Letterboxing Forum Index Dartmoor Letterboxing
The Letterboxing Community
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

GPS Assistance Required
Goto page 1, 2  Next
 
Post new topic   Reply to topic    Dartmoor Letterboxing Forum Index -> Navigation
View previous topic :: View next topic  
Author Message
The Lost Legionnaire
Hiker
Hiker


Joined: 23 Jun 2006
Posts: 162
Location: Newton Abbot

PostPosted: Mon Sep 25, 2006 5:27 pm    Post subject: GPS Assistance Required Reply with quote

I have recently acquired a Garmin 'etrex' GPS navigation system.

Could any 'GPS experts' do me a favour and tell me the exact elavation, longtitude and latitude readings for:

a) The centre of the Avon Dam
b) The island on Meldon Reservoir
c) The TV mast on North Hessary Tor


so I can check I'm doing it properly.

Thank you.
_________________
"So I find myself among brave south western hills....................running like a madman on the moor"
Back to top
View user's profile Send private message
Boo Boxers
Moderator
Moderator


Joined: 13 Aug 2006
Posts: 170
Location: Totnes, Devon

PostPosted: Mon Sep 25, 2006 6:26 pm    Post subject: Reply with quote

I'm sure Dizzy will be along shortly to help you out!
_________________
www.4x4prejudice.com

676 found only 324 to go!
Back to top
View user's profile Send private message
Dizzy
Adventurer
Adventurer


Joined: 19 Jul 2006
Posts: 815
Location: North Devon

PostPosted: Mon Sep 25, 2006 9:12 pm    Post subject: Reply with quote

Boo Boxers wrote:
I'm sure Dizzy will be along shortly to help you out!


Errm..................well.......................sorry, but I've never used a GPS device! I'm the old school with a sighting compass. Heck, I feel as though I've let the side down now. Crying or Very sad
(Edited by me)
Well, you got me interested (as usual!). I've spent the past hour researching on the internet and came across a fantastic interactive map of Dartmoor, well all over the world as well. You can select a tool, click on the point you need info on the map, zoom in (keep zooming in, bit slow though but worth the wait) and then be presented with a grid reference AND.............GPS bearing!!!! What about this for a search result then! Very Happy

Check this site out ....
http://www.magic.gov.uk/website/magic/viewer.htm?startTopic=magicall&chosenLayers=sacIndex&sqgridref=SX590864&startscale=500000

Just check North Hessary TV Mast.........
Full grid ref: 257818, 74201
100mm grid ref: SX 578 742
Latitude, Longitude 50.55, -4.01


Not sure about the elevation bit though Sad
Paul
_________________
Visit my website and please leave a message on my new Guestbook!
http://www.letterboxstamper.co.ukhttp://www.devonartist.co.uk


Last edited by Dizzy on Tue Sep 26, 2006 8:15 am; edited 4 times in total
Back to top
View user's profile Send private message Visit poster's website
Boo Boxers
Moderator
Moderator


Joined: 13 Aug 2006
Posts: 170
Location: Totnes, Devon

PostPosted: Mon Sep 25, 2006 9:41 pm    Post subject: Reply with quote

No, apologies - thats completely my fault!

I though you used a gps - must have been someone else! Embarassed
_________________
www.4x4prejudice.com

676 found only 324 to go!
Back to top
View user's profile Send private message
Dizzy
Adventurer
Adventurer


Joined: 19 Jul 2006
Posts: 815
Location: North Devon

PostPosted: Mon Sep 25, 2006 9:54 pm    Post subject: Reply with quote

Boo Boxers wrote:
No, apologies - thats completely my fault!

I though you used a gps - must have been someone else! Embarassed


See above Boo Boxers, I think I've got the answers at hand!

Paul
_________________
Visit my website and please leave a message on my new Guestbook!
http://www.letterboxstamper.co.ukhttp://www.devonartist.co.uk
Back to top
View user's profile Send private message Visit poster's website
Boo Boxers
Moderator
Moderator


Joined: 13 Aug 2006
Posts: 170
Location: Totnes, Devon

PostPosted: Mon Sep 25, 2006 10:07 pm    Post subject: Reply with quote

All along I knew you would have the answer!
_________________
www.4x4prejudice.com

676 found only 324 to go!
Back to top
View user's profile Send private message
NUMBER 70
Moderator
Moderator


Joined: 13 Apr 2006
Posts: 499
Location: CHESHIRE

PostPosted: Tue Sep 26, 2006 11:28 am    Post subject: Reply with quote

A word of warning, make sure your GPS Unit is set to the correct 'map datum' setting, ie not WGS84, as this will affect the grid refs you are using. You will need to consult you manual on the correct setting, there should be a list to scroll through on the set up page.

I only found this out from Geocahing as they set it to WGS 84 and degrees, minutes seconds or one of the other three which im not going to list

Where as Letterboxers use ORD SRVY GB and 12345,12345

The default datum for garmin is WGS 84
World Geodetic System

Just happen to have my instruction book to hand, did not write this off the top of my head, not that clever!!!!
Back to top
View user's profile Send private message
The Lost Legionnaire
Hiker
Hiker


Joined: 23 Jun 2006
Posts: 162
Location: Newton Abbot

PostPosted: Tue Sep 26, 2006 9:04 pm    Post subject: Reply with quote

Thanks guys, problem sorted Number 70 to the rescue. Map Datum changed and BINGO. I also did a test to see if it could navigate me back to my car from 3 miles away..........................result, 3 yards from the vehicle it informed me that I had reached my destination. Top Toy.
_________________
"So I find myself among brave south western hills....................running like a madman on the moor"
Back to top
View user's profile Send private message
Nik - KOTM
Site Admin


Joined: 26 Mar 2005
Posts: 2510
Location: Somewhere over the rainbow

PostPosted: Mon Oct 02, 2006 3:00 pm    Post subject: Reply with quote

That is the only real reason I use my GPS to get me back to my car - hopefully never to use it to find my way back to a casualty - though I would use it for that
_________________
Nik 248 to go
Back to top
View user's profile Send private message Send e-mail
wooiee
Adventurer
Adventurer


Joined: 11 Jan 2006
Posts: 985
Location: plymouth

PostPosted: Mon Oct 02, 2006 11:12 pm    Post subject: Reply with quote

the only problem i've found is that it will take you the most direct route.
which doesn't always mean its the quickest. if you get the map out ther can often be a bridle way or track winding its way beside you.
________
Weed


Last edited by wooiee on Fri Feb 18, 2011 8:41 am; edited 1 time in total
Back to top
View user's profile Send private message Send e-mail
Brinnie
Hiker
Hiker


Joined: 29 Sep 2006
Posts: 186
Location: Dartmoor

PostPosted: Tue Oct 03, 2006 4:28 pm    Post subject: Reply with quote

I use a Garmin Etrex and I thinks it great, so much quicker especially if you are walking a long distance into the moor. I use it in OS and WGS84 depending whether I am letterboxing or geocaching, I often have to change from one format to another on a walk it only takes a few seconds. The only thing it doesnít convert it exactly, itís only the last figure that would be wrong, and thatís only a pace or so.
Brinnie
Back to top
View user's profile Send private message
The Lost Legionnaire
Hiker
Hiker


Joined: 23 Jun 2006
Posts: 162
Location: Newton Abbot

PostPosted: Tue Oct 03, 2006 4:44 pm    Post subject: Reply with quote

I keep mine in OS mode, this geocaching nonsense doesn't interest me in the slightest. Mad
_________________
"So I find myself among brave south western hills....................running like a madman on the moor"
Back to top
View user's profile Send private message
Brinnie
Hiker
Hiker


Joined: 29 Sep 2006
Posts: 186
Location: Dartmoor

PostPosted: Tue Oct 03, 2006 5:50 pm    Post subject: Reply with quote

I would always put letterboxing before geocaching. I have been letterboxing for 15 years now. I visit the Dartmoor caches when I am letterboxing in the areas where there are caches. I find caching very useful when the weather is too bad to walk on Dartmoor. A while ago I had arranged with a friend to have a days letterboxing on Dartmoor unfortunately the weather was too bad to attempt to go onto the moor, so we headed for Cotehele in East Cornwall, the weather was so different down there and we had a good walk in a new area and found several caches, much better than canceling our walk.
Brinnie
Back to top
View user's profile Send private message
Brinnie
Hiker
Hiker


Joined: 29 Sep 2006
Posts: 186
Location: Dartmoor

PostPosted: Fri Oct 06, 2006 8:02 am    Post subject: Reply with quote

http://www.dartmoorgps.co.uk/

Try this site. Brrinnie
Back to top
View user's profile Send private message
wooiee
Adventurer
Adventurer


Joined: 11 Jan 2006
Posts: 985
Location: plymouth

PostPosted: Sat Oct 07, 2006 9:39 pm    Post subject: Reply with quote

thanks added it to the links...
________
VAAAPP


Last edited by wooiee on Fri Feb 18, 2011 8:41 am; edited 1 time in total
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    Dartmoor Letterboxing Forum Index -> Navigation All times are GMT
Goto page 1, 2  Next
Page 1 of 2

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group
subGreen style by ktauber