Your new registration will include a hexcode unique to your aircraft AND N number. I am not familiar with the GRT or UAvionics, but there should be a method to enter the code which will then send the data out through ADS-B.
RV6 #20477 completed 1991 sold.
RV7 #72018 N767T first flight 11/21/2017 250+ hrs.
IO-360M1B MT 3 blade, Dual AFS 5600 QUICK Panel.
Manual Flaps. KOXC Oxford, CT
1941 J3 Cub skis,floats.
2019 dues gladly paid.