A220/A221 Mounting Hardware Update Kyli Johnson - Outback Guidance October 05, 2020 16:52 Updated Follow 875-0289-000_A1 (MNL,SUPP REL NOTES,A220-A221 MOUNT HW).pdf 100 KB Download Related articles A221 Base Station Operation Notes A631 RTK Base/Rover User Guide A220/A221 GPS Firmware Loading Instructions A320 Quick Reference Guide 875-0292-000 Rev A1 A220/A221 with Microhard L400 Radio Supplemental Release Notes