Peter Duniho wrote:

"Jim Macklin" wrote in message
news:ASVtg.68472$ZW3.9262@dukeread04...
If he is broadcasting and his power is above the proper
legal range, he MAY be in violation.

Again, since it seems you didn't catch it the first time I wrote it:

Assuming he's using an off-the-shelf device intended for the use in which
he's applying it, that's extremely doubtful

Assuming that the device is properly constructed and adhering to standards that
is. Typically manufacturers can "self certify." YMMV.



He should be sure the
FM transmitter he has, has an FCC number and is not causing
any interference with the neighbors.

Whether he is causing any interference with the neighbors is irrelevant. As
long as it's approved by the FCC (and any off-the-shelf device intended for
the use in which he's applying it would be), the neighbors are required by
law to accept any interference (just as he and I and other people in similar
situations are required to accept interference from nearby AM transmitters).

You have that backwards. A part 15 device must not cause interference to
others. Conversely the user of the part 15 device must accept interference from
other users of the band. A local wireless (unlicensed) transmitter would
typically be a part 15 device.

This is assuming that the FCC has jurisdiction (i.e. USA).