What is the best options for a permeant base to use with auto steer for farm and a rtk facet that I have already purchased.
You’ll want something with ‘dead reckoning’, I usually recommend this F9R kit SparkFun GPS-RTK Dead Reckoning Kit (SMA) - SparkFun Electronics
Be sure to use the hookup guide SparkFun GPS-RTK Dead Reckoning ZED-F9R Hookup Guide - SparkFun Learn to get it going (calibration is required)