Very unfortunately the prices for certified aviation electronics hasn't done
the same and there is no reason to think it will in the future.

From what I can tell, ADS-B requires a
mode-s transponder, a high performance GPS,
a 1030 Mhz receiver which may or may not
be part of the transponder, a fast computer
and a display.

There's no way to predict what that would
cost in 2020 except that it will be more
than $180.


I believe that UAT is 978 MHz but the frequency is trivial.

Ron Lee