I'm talking mainly about the cost of ADS-B Out. That unit pretty much
has no user interface at all. Could be a lump that installs
anywhere. Who says it has to be a full blown WAAS IFR GPS? I just
bought a gadget called a SPoT that has a GPS receiver and a Globalstar
compatible transmitter. Cost $135. It has essentially all the
functionality needed for a ADS-B Out. It only needs to transmit on a
slightly different frequency at a somewhat higher power. Are saying
it has to be built with 1980's technology??

The specs mentioned in the NPRM can only be met with a GPS/WAAS unit
and I am assuming TSOd (in the panel unit).


If any one comes out with a certified ADS-B Out/In for $40K I'll be
surprised. Half that for out only if we are lucky.

Do you think this has to cost 10 X as much as a Garmin 496? I don't.
I bet Garmin doesn't think so either. Maybe less than 1X496. An Out
only box could cost far less.

Ok, lets say it is JUST $10,000 US for the GPS/WAAS receiver and ADS-B
Out unit installed (may be much higher). It is not worth it to me
when Mode-C provides adequate surveillance. PLus for YOU to benefit
you have to talk to ATC (if they have coverage). Most people I know
don't talk to ATC.

Ron Lee