What does the antenna LED indicate? Derek Smith October 01, 2018 16:41 Updated Follow The antenna LED can be one of three colors: Red = power on, no GPS Amber = GPS lock, still acquiring signal Green = DGPS position, system ready for use Related articles Excessive movement of the Wheelman while in operation Do I need DGPS to calibrate? Wheelman Quick Start Guide What vehicle dimensions to I need to measure? How do I add an implement? Comments 0 comments Please sign in to leave a comment.