Do I need DGPS to calibrate? – Hands Free Farm

Yes, you will need a differential GPS (DGPS) position to perform the series of calibration steps. When you have a DGPS position:

The antenna LED is green
You will be able to perform the calibration, meaning, Whirl will display the first step of Calibration A after you enter vehicle dimensions; otherwise, if you don't have a DGPS signal, Whirl will display the Error Status screen with a GPS Error section (to help you troubleshoot the error)
On the Wheelman screen or the map screen, green bars and 'GNSS' appear at the top
The Wheelman dashboard GNSS LED (circled below) is solid on (red)