vic wrote:
In that case all you need is the TRIG TN 72 GPS receiver feeding the transponder for certified OUT, at € 530.- . For having traffic alerts you get any app you like on the tablet etc. with ADS-B IN by WIFI like the PAW Rosetta does – no extra wires in the cockpit. So for renters this would be a case to have the owner install an s-tx plus the TN 72 for certified OUT , useful for TCAS as well.
You nailed it, Vic. This is exactly what I would like to see.