Originally Posted by
Dave Prizio
I just put a Garmin GDL 82 and a GDL 39R in my plane. The installation was pretty easy. There is no need to connect it to a separate GPS/WAAS source. Once I entered the correct Mode S code into the unit it performed very well. Blame that on my tired eyes. The GDL 39R connects to my iPad via Bluetooth for traffic and weather. I was able to keep my Apollo Mode C transponder. There are two antennas and some cable and connectors you will need to but in addition to the two units from Garmin. The total cost for everything was under $3K, not counting the iPad.
The GDL 82 is a UAT unit, so it only works in the US as I understand it. I can receive all ADS-B signals with the GDL 39R.
Dave Prizio