jtac coordinates hundreds of miles out

the last couple of days i have been trying to learn jtac, using http://youtu.be/mcJ8mlMF7qg as a reference and playing dragons jtac training, with the easy jtac targets i always end up with waypoints 800+ miles away from my current position any idea what i might be doing wrong?

i will go through it again and post a track or if anyone is free you can join me online

It sounds like your major grid zone designator is entered incorrectly. Simply check your own coordinates to see which one you're operating in and update your CDU accordingly.

38T vs 37T

can you post a link on how to do that? currently im sat on the tarmac at senaki and my cdu says its in 38Ti just did a standard startup waiting for it to align fully so i could enable egi/eac

oups, sorry, wasnt know you allready saw where to look at.

Enter 37T or 38T ( if you want 37T or 38T) and press the key on the left of the line who contain 37T

thanks jtac works now, how come that's wrong after startup though? i also noticed that after changing it the init positon marker was way out so i couldnt use it to find the airfield to rearm/refule i had to use the divert function

thanks jtac works now, how come that's wrong after startup though? i also noticed that after changing it the init positon marker was way out so i couldnt use it to find the airfield to rearm/refule i had to use the divert function

The problems lies in the fact that on the Georgian map, there is a border between grid zones 37T and 38T. If both your aircraft and your target lie in the same grid zone there is no problem. HOWEVER, there are a lot of instances (especially close to the Black Sea coast area) where your aircraft can be at an IP in one grid zone whilst your target can be in another grid zone 10 miles away. It's the ever-vexing grid zone border conundrum.

Someone earlier suggested to me to simply enter the JTAC's coordinates normally, then check target distance. If it's hundreds of miles off, simply change your grid zone from either 37T or 38T (has to be one of the two), and re-enter the coordinates. This is the easiest way I've found. If you know the exact locations of the JTAC and target before a mission begins, you can always reference a MGRS map also.