04-02-2005, 10:22 PM
I going to play dumb here and ask probably a stupid question. Here we go. When people refer to the 280 line are they refering to Loran type cordinates or people taliking about depth. I generally do all my Nav. by GPS. I use my chart plotter and I carry 2 extra gps when I go out.
04-02-2005, 10:33 PM
It's LORAN, the last three of the 4 line. Basically how far north or south they are, they will usually say how many fathoms they are in to set the east west. You should be able to set your chart plotter to show the TD lines, if not you can definitely have it display the numbers once you set up the chains and station in it.
04-03-2005, 11:24 AM
Well put Darren.......Now JUst alittle more info on tds...If your on the 280 In 100 fthms & someone says they are on the fish & there on on 180 In 100 fthms they are 10miles south of ya..every 100 Is 10 miles so the 200 to the 300 line IS 10 miles.....Tds a very easy to learn & they sell charts with tds on them..Good luck...
04-03-2005, 11:52 AM
Just to add something...
Most of the lingo you hear around here is in TD's. Remember we are just taking in TD's. Not to say we don't use Lat/Lon. If you feel more comfortable using Lat/Lon, go for it. But if your planning on fishing around here you have to understand TD's.
Having two GPS's is a good thing to have if your just starting to learn TD's, one that is set to Lat/Lon and the other set to TD's.
04-03-2005, 10:09 PM
Thanks to all that replied. I'll have setup my chartplotter and see how well it works. I usually just use the Lon/Lat and watch my compuss. I also check out the contour line on my chartplotter. Garmin 182 with blue chart. Seems to work and it matches up to the map i got pretty well but knowing how to figure out the talk over the radio and letting other people know will be a great advantage.
Make sure you set your Td chain right-- 9960 - X Y on the GPS.