I am not clear on your meaning. Are you using eastings and northings (otherwise known as AMG or Australian Map Grid,) or are you putting S & E after your lat/long figures. If it is the latter then the same numerals apply - you just leave the "-" off the front of the latitude and put the S after it. Likewise if the longitude has a "+" in front of it you delete that and put E after the numerals.

If you are using AMGs then there is a very complicated formula for converting these to lat/long. It occupied a couple of lines in the manual we had to explain the subject. We did not bother with it as we had fed it into a computer programme.

My old GPS can be set to accept either input. When I enter either the Lat/long or the AMG I can change it to the other system and read the figure of the other system there. See if you can do that.

For those not familiar with the AMG system, it is the grid you find on the maps published by the national and state mapping authorities.

A few links that may interest people interested in mapping and navigation.


http://www.ga.gov.au/geodesy/datums/aboutdatums.jsp

http://www.ga.gov.au/geodesy/datums/calcs.jsp#coords

http://www.ga.gov.au/geodesy/datums/redfearn_grid_to_geo.jsp

http://www.ga.gov.au/geodesy/datums/redfearn_geo_to_grid.jsp

dave06 wrote:

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HI John, have a look at your manual for the unit, in there you will find instructions on how to set the nav description

it should give you a choice as to which one you want

if youhavent got the manual then do a google search and go to downloads then instruction manual

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G'day Dav0, Thanks for that info, my Tom Tom has 3 settings as follows:-

1)Degrees (D.Dº )
2)Minutes (Dº M.M')
3)Seconds (Dº M'S")

I have mine set on number 2 Minutes.

When I wish to enter co-ordinates the Latitude automatically comes up with S and Longitude comes up with E.  At the bottom of the screen I have the option to change the S to N or the E to W. hope I have not confused the issue too much.

 

dave06 wrote:

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yep thats the one John,

folks just mess around with the thing, you cant hurt it, worst that could happen is you have to reset it

dont overcomplicate these things just keep it simple and fool around with it! get to know it!

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G'day Dave0, yep I mess around with mine regularly,(my Tom Tom that is) 'tis the only real way to learn, for me any way.  Stuff it up and hit reset or factory default and start again, besides I like playing with my new toys and I do learn a few things to boot, just wish I could remember what I learned.  Need to keep it simple 'cause I am a simple lad.

 

Thank you Dave0.

You are so right Ibbo and I do remember the song, Oh God am I getting old now...............:) :) :)

TENNESSEE WIG WALK
(Larry Coleman / Norman Gimbel)

Bonnie Lou - 1954
Also recorded by : Russ Morgan & His Orch.; 
The Deighton Family; Dan Zanes.


Im a bow-legged chicken, Im a knock kneed hen
Never been so happy since I dont know when
I walk with a wiggle and a giggle and a squawk
Doing the Tennessee wig walk.

Hear a tune on the fiddle and my hearts aflow ???
Though Im broke and weary and my back is sore
I walk with a wiggle and a giggle and a squawk
Doing the Tennessee wig walk.

Put your toes together, your knees apart
Bend your back, get ready to start
Flap your elbows just for luck
Then you wiggle and you waddle like a baby duck.

Come and dance with me honey, tap your toes and glide
And well always be together side by side,
I walk with a wiggle and a giggle and a squawk
Doing the Tennessee wig walk

Sure gets your feet tapping.

Jimricho,
Yes i spent some time yesterday going through my Garmin manual and found what i wanted which states the same.
Now i put in co-ordinates any way and it converts them to decimal which is what i set it at.
I would to thank all who helped.


Roamin