Mikey B Posted September 29, 2009 Report Share Posted September 29, 2009 I've obtained a copy of Dive Dorset which has a number of interesting marks close to Poole I would like to try. Can some one please tell me how to convert the GPS number from O/S as in the book to those used on my GPS. My GPS requires three decimal places at the end and not the two as shown in Dive Dorset. I'm sure this has been covered before but would be grateful for the help. Thanks Mikey B Quote Link to comment Share on other sites More sharing options...
Rob Posted September 29, 2009 Report Share Posted September 29, 2009 Ah - the old degrees minutes and seconds and decimal confusion!!!! See here: http://www.offroaders.com/info/tech-corner...Coordinates.htm Rob Quote Link to comment Share on other sites More sharing options...
wotu2uk Posted September 30, 2009 Report Share Posted September 30, 2009 (edited) no idea if this helps, but it is a converter program http://gps.ordnancesurvey.co.uk/convert.asp John Edited September 30, 2009 by wotu2uk Quote Link to comment Share on other sites More sharing options...
great white Posted September 30, 2009 Report Share Posted September 30, 2009 Unless its a very exact spot IE a small wreck just enter the ones given and put a zero on the end. Then go and have a look The fact that they are to two decimal places usualy indicates that they are old numbers. The problem can be knowing which datum they are using, and if they are Degrees-minutes-seconds or Degrees-minutes-decimals. I believe [if I get this the right way] that if none of the Numbers you are given have any numbers higher than 60 they are DMS [You do not get more than 60 mins or seconds] and if higher than 60 they are DMD. Hope that has not confused you more Charlie Quote Link to comment Share on other sites More sharing options...
Brian Posted September 30, 2009 Report Share Posted September 30, 2009 (edited) Divide the "Seconds" by 60 to convert to Decimal of a "minute". e.g: 50 41 Edited September 30, 2009 by Brian Quote Link to comment Share on other sites More sharing options...
great white Posted September 30, 2009 Report Share Posted September 30, 2009 If that is too confusing PM the ones your thinking of looking at, too someone with a large list, and they may cross refer for you. Charlie Quote Link to comment Share on other sites More sharing options...
Mikey B Posted September 30, 2009 Author Report Share Posted September 30, 2009 Many thanks for the responses lads. I will check out the web sites provided when I get time. I need to look further afield than Poole patch and Swanage bay. I'm limited with my Orkney 520 range wise and would like to buddy up when going further out (work and weather permitting). Taking advantage of the calm weather last week end I was unable to find the Betsy Anna because I had the wrong GPS numbers. In the past I Quote Link to comment Share on other sites More sharing options...
Bob F Posted September 30, 2009 Report Share Posted September 30, 2009 Another little snippet which is useful to remember, the third digit represents about 2 meters in the N-S coordintates, and 1 meter in the E-W coordintates. So, for example, the difference between 50 34 001N and 50 34 003N is 4 meters. And the difference between 01 56 590W and 01 56 599W is 9 meters. This can be useful when calculating roughly how far you need to drop your anchor from a wreck (i.e. at least 3 times the depth of water you are in, plus the drop back of the fishing lines). BF Quote Link to comment Share on other sites More sharing options...
Coddy Posted September 30, 2009 Report Share Posted September 30, 2009 Another little snippet which is useful to remember, the third digit represents about 2 meters in the N-S coordintates, and 1 meter in the E-W coordintates. So, for example, the difference between 50 34 001N and 50 34 003N is 4 meters. And the difference between 01 56 590W and 01 56 599W is 9 meters. This can be useful when calculating roughly how far you need to drop your anchor from a wreck (i.e. at least 3 times the depth of water you are in, plus the drop back of the fishing lines). BF Good bit of information there Bob One problem however ................................... first find the wreck! Dave Quote Link to comment Share on other sites More sharing options...
pirky Posted October 1, 2009 Report Share Posted October 1, 2009 I need to look further afield than Poole patch and Swanage bay. I'm limited with my Orkney 520 range wise and would like to buddy up when going further out (work and weather permitting). In the past I Quote Link to comment Share on other sites More sharing options...
great white Posted October 1, 2009 Report Share Posted October 1, 2009 As I hinted at earlier If you have numbers that you want checked. PM them to me I will look on my Data Base to see if I have more accurate GPS numbers for you. Its not a trick to get more numbers, its a genuine offer to help To start with you may want to stick with the inshore wrecks and practice the various techniques. You will be surprised at what occasionally comes from these. Charlie Quote Link to comment Share on other sites More sharing options...
Jim Posted October 1, 2009 Report Share Posted October 1, 2009 Jacquie is always stuck for Ideas for Christmas. I think a decent book is called for. One I can take out on Small Fry with me, and use as a reference. Thanks for the useful info Lads. Jim Quote Link to comment Share on other sites More sharing options...
great white Posted October 1, 2009 Report Share Posted October 1, 2009 (edited) Jim and others If it is just wreck Numbers you want and info on those wrecks a subscription to the wrecksite, may also make a good present. Once subscribed there is loads of info available. However I do not remember how much that costs like here for Kyarra, some info not available in this view. http://wrecksite.eu/wreck.aspx?548 Charlie Edited October 1, 2009 by great white Quote Link to comment Share on other sites More sharing options...
conger king Posted October 1, 2009 Report Share Posted October 1, 2009 its free just fill in form and wait for e mail Quote Link to comment Share on other sites More sharing options...
conger king Posted October 1, 2009 Report Share Posted October 1, 2009 plus 25.00 to see all charts ect Quote Link to comment Share on other sites More sharing options...
Jim Posted October 1, 2009 Report Share Posted October 1, 2009 Thanks. Until now if I wanted to find a wreck, I had to go to Trent's Cheers. Jim Quote Link to comment Share on other sites More sharing options...
pirky Posted October 1, 2009 Report Share Posted October 1, 2009 Look in the mirror Jim......Like wot I do !! Dave Quote Link to comment Share on other sites More sharing options...
Jim Posted October 1, 2009 Report Share Posted October 1, 2009 Look in the mirror Jim......Like wot I do !! Dave You owe me a Beer. Quote Link to comment Share on other sites More sharing options...
great white Posted October 2, 2009 Report Share Posted October 2, 2009 Look in the mirror Jim......Like wot I do !! Dave Nice Dave Quote Link to comment Share on other sites More sharing options...
oysterboats Posted October 5, 2009 Report Share Posted October 5, 2009 dorset shipwrecks by steve shovlar is a much better book if thats any help Quote Link to comment Share on other sites More sharing options...
Bob F Posted October 6, 2009 Report Share Posted October 6, 2009 There is also: Dive Wight and Hampshire - ISBN 0-946020-15-9 and Inshore Along the Dorset Coast - ISBN 1-871680-26-3 BF Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.