jammy
New Member
Posts: 10
|
Post by jammy on Jul 23, 2008 23:15:47 GMT
Can anyone help in convering old decca numbers to gps.
|
|
|
|
Post by Lavy on Jul 23, 2008 23:30:07 GMT
Are we talking proper decca or degrees minutes and seconds as used by the old navstars?
|
|
jammy
New Member
Posts: 10
|
Post by jammy on Jul 23, 2008 23:48:04 GMT
Degrees, minutes and seconds
|
|
|
|
Post by Lavy on Jul 23, 2008 23:54:19 GMT
you only need to convert the seconds to 100ths of a degree .
Multiply by 100 and divide by 60. Bear in mind that numbers taken from a navstar or a phillips or similar could be quite a way out because of the amount they used to vary.
Rich.
|
|
|
|
Post by crackoff on Jul 24, 2008 10:22:56 GMT
you need to check your chart datums as the decca lat lon maybe in GRB36 where your new GPS is probrably set to WGS84. This also can lead to an error of upto 100 meters.  |
|
|
|
Post by michael1923 on Jul 24, 2008 11:01:39 GMT
type it into google shows how to do it just as Rich states, also if you enter your model number it might show the error margin.
It will be out no matter how pecise you do it, but not too much with a bit of luck
|
|
|
|
Post by squidlips on Jul 24, 2008 16:17:18 GMT
 seconds to decimals of minutes chart  there is also converter chart here www.wrecksite.eu |
|
jammy
New Member
Posts: 10
|
Post by jammy on Jul 24, 2008 19:04:50 GMT
Thanks to you all for your help !
;D
|
|
