On Fri, 01 Oct 2004 02:33:14 GMT, "John Smith"
wrote:

Or, do these transmitters require the PI network to stay within FCC limits?

Hi John,

In the old days, this question use to appear on the FCC's serious
tests - also required math too.

You already demonstrated as much with:
If you analyze the receiving network, you will see that, if the antenna is
50 Ohms, the receiver sees 50 Ohms. So the network appears to simply be a
filter.
that meets the minimum technical requirment for coupling. All that
remains is the technical in-band/out-band issues (which segue into the
legal issues).

73's
Richard Clark, KB7QHC