"Gig 601XL Builder" wrDOTgiaconaATsuddenlink.net wrote in message
...
I was really talking more about the installation rules for an IFR GPS. And
while there may be FCC rules about me building my transmitter I don't think
they would apply to me building a NAV receiver.

Yes they do. Any superheterodyne receiver requires Part 15 acceptance.
Unless you want to build a crystal set without a local oscillator. Look at
the bottom of your crackerbox AM radio at home. {;-)


I could be wrong but that
isn't the point. The FAA have created a set of rules for use of a GPS
receiver that are much more strict than those for a NAV radio that the
installation and use of is at least just as complex.

They did exactly the same thing for contact lenses back in the mid '60s when
they started to become popular. I spent a full DAY in the opthomologist's
(sp?) office doing all the required tests. Now it is a simple "do you wear
contacts" box on the medical exam form.

Oklahoma City = Paranoid City

Jim