I had a Garmin 12 handheld GPS and have recently bought a Navman 5600
Chartplotter. When I put my Garmin co-ordinates (eg. S32-03-494,
E115-32-050)into the Navman, I am not finding the reef on my sounder,
and therefore no fish! I have tried 4 of my usual spots and each time
I am not finding reef. My Navman manual says latitude and longitude
are degrees, minutes and minutes to 3 decimal places. I do not have
the manual to my Garmin 12, but someone told me that the last 3 digits
on Garmins are not minutes to 3 decimal places, they are seconds or
something different ???

Can someone please help me convert my Garmin co-ordinates so they work
in my Navman GPS ?