How to convert short GPS coordinates please
Submitted by Wilfish on Sat, 2019-12-21 11:03
Hi guys. Forgive me I'm a bit of a novice with GPS coordinates.
I'm trying to put the Recfishwest FAD coordinates into my GPS combo and I must be doing it wrong as they come up well south of where they should be. When I put them in they come up west of Garden Island and I know they're further north of GI.
The Recfishwest coordinates read 32.113S 115.160E. So I'm entering it in my MFD as 32.11.300S 115.16.000. Clearly this is wrong. Can somebody please clarify where I'm going wrong please?
Thanks in advance.
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dodgy
Posts: 4563
Date Joined: 01/02/10
https://recfishwest.org.au/wp
https://recfishwest.org.au/wp-content/uploads/2019/11/PERTH-FAD-Coords-with-maps.pdf
Here is a link with fad coords in a couple of different formats.
Does anyone know where the love of god goes, when the waves turn the minutes to hours?
Wilfish
Posts: 17
Date Joined: 01/10/19
Ok thanks dodgy. That was
Ok thanks dodgy. That was enlightening. At least I know mine reads in DDM now. Appreciate your comment mate.
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Terry
Posts: 458
Date Joined: 04/12/05
Try this
https://www.latlong.net/lat-long-dms.html
Wilfish
Posts: 17
Date Joined: 01/10/19
Thanks for your reply lads
Thanks for your reply lads I'll give that a shot.
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dmck
Posts: 406
Date Joined: 07/03/19
You dont need an app.....
just a calculator.
DDMMSS.ss
SS.ss /60 = .mmmm
MMSS.ss = MM+.mmmm
DDMM.mm
MM.mm/60=.dddd
DDMM.mm = DD+.dddd
.dddd * 60= MM.mmmm
.mmmm * 60 = SS.ssss
Dont get too hung up on the number of decimal places....
1minute of LAT = 1852 metres.
therfore 2 decimal (MM.mm)places will get you to within 18.5 metres.
3 decimal places (MM.mmm) will get you to within 1.85 metres.... the width of your boat!!!
1 second is approx 3 metres!!
unless you are at the equator, LONGITUDE measurements will be smaller.
A pity that converting between DATUMs is not as simple.....
Wilfish
Posts: 17
Date Joined: 01/10/19
Thanks dmck, certainly
Thanks dmck, certainly sounds like you know what your talking about
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little johnny
Posts: 5329
Date Joined: 04/12/11
Impressive
.
Chinbald
Posts: 315
Date Joined: 21/02/09
Agreed
My head is hurting trying to take that in. Never stop learning.
deep south
Posts: 187
Date Joined: 28/12/16
You can
Just go into your gps settings , find the co ord options , find the format you are trying to put in then once the spots have been saved in the unit just change back to the format you use
Did it years ago after getting some old king crab marks off the south coast fron an old bloke , worked a treat .
The next time i see that jig will be in the mouth of something big !!
Jackfrost80
Posts: 8049
Date Joined: 07/05/12
Great advice!
Great advice!
Officially off the Pies bandwagon
Reefsta
Posts: 281
Date Joined: 03/08/19
Google can also help
Hi Wilfish
When on a trip I often use the method Deep South suggested, just changing the format settings on your GPS. However if at home,for a quick change via a computer, you can also just use Google Maps, which will accept the short decimal degrees format and then display the location in both decimal degrees and the longer degrees, minutes and seconds. For example, in the search box, if you put the FAD coordinates as 32.113S 115.160E it will put a waypoint marker on the map and also dispaly the coordinates in both formats like ;
32°06'46.8"S 115°09'36.0"E and -32.113000, 115.160000
It will work with both formats regardless of which one you enter, while also showing you a ballpark location of where the target, such as the FAD, is.
However Google maps lacks the third format of Degrees and Decimal Minutes. To use that one you can do it on a computer with Google Earth, which is a free but big download, or do as Deep South suggests by changing the settings on your GPS back and forth.
sea-kem
Posts: 14853
Date Joined: 30/11/09
Awesome thread
Awesome thread
Love the West!
Wilfish
Posts: 17
Date Joined: 01/10/19
Thanks to everyone that
Thanks to everyone that chimed in. There seems to be a few smart cookies amongst us! I ended up using this converter which I found on the net which was easy enough to use.
https://www.pgc.umn.edu/apps/convert/
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