I got two sparkfun rtk gps zed f9p devices. what is the procedure to make one device a base station and another a rover.
and after configuring both how they will work on u center.
I do not have any experiance playing with these boards, Luckily Sparkfun have written up a fairly comprehensive guide https://learn.sparkfun.com/tutorials/gps-rtk2-hookup-guide
Hope this helps you out