C. Osbourne wrote:

Thanks for the info, Too bad you can't just setup the right
equipment to receive the signals, but what you say makes sense.

It's just that's it's "drop dead cool", I'd really like to have
something that shows that data, that didn't cost as much as
the other 1/2 of the plane!

There are several programs (subscription required) that allow you to see
all IFR traffic in the area on a computer via the internet...

Not the same thing, but its getting there and bringing the costs down...