The problem is that those aren't NMEA data sentences from what I'm seeing... Look at this
website, and you'll see that the prefix is all wrong.
The NMEA sentence for lat/lon is GLL and looks like this:
$GPGLL,4916.45,N,12311.12,W,225444,A,*1D
What your sounder is putting out for Lat/Lon is this:
$SDGLL,4253.21,S,14719.76,E,,
Whatever you're connected to is putting out data sentences, but they're not NMEA 0183 data sentences. So your software isn't going to recognize the data regardless of what you do. If you can see the data in Hyperterminal and you have the port set to 4800 8 N 1, your laptop is receiving it just fine.
Save yourself a lot of headaches and get a GPS receiver like that PBZ has recommended.
__________________
Sailingdog
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Telstar 28
New England
You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.
—Cpt. Mal Reynolds, Serenity (edited)
If you're new to the Sailnet Forums... please read this
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Still—DON'T READ THAT POST AGAIN.