how to link multi sessions gt31

Anyone out there know how to link multi sessions , so realspeed can link one days sailing , my gt31 kept saving data today in small sessions 4 for the day , the gps was never off. Can not get a 1 hour or a nat mile?? any help

Sorry to nit pit mineral, but in the interest of clarity, I think that's probably more like, "file size" should be set to "card size". Under the memory card section.

But i think minerals right about this being your problem.
Your "file size" is probably set to 128kb, every time it reaches that size it starts a new file.

Also as Mineral says the internal data logger should be 1 big file, it holds about 7hrs of data, so you could have several sessions in there not just todays.

To join files in RS open the earliest file, then go to "file" "import", then open the next file. Not sure if you can keep doing this with all files, or if it's better to combine them 1 at a time.
Any way to combine files, I think you have to go to "view" "divisions". That should give you a left hand column with "tracks", at the bottom. right click on this and you should see a line like, "combine files".
Unfortunately I've had mixed success with this, but you could give it a try, if the data logger contains too many sessions.
Real speed will separate the sessions, but I'm not sure just how off the top of my head.