104.1 FM is below the aircraft navigation and below the
communication assigned frequencies. But there are harmonic
signals that you cheap FM transmitter is not screening out.
Are you using a wired connection from the PC to the FM
transmitter or a WiFi or other radio? Most likely you're
getting the interference in that way.

You may be in violation of FCC rules.


"rb" wrote in message
ups.com...
|I bought a FM wireless transmitter to rebroadcast stuff
from my PC
| around the house. The only frequency I could find was
104.1 that was
| clear without a station. But all of a sudden, now when I
am
| broadcasting my stuff, I pick up planes instead. How can
this be? I
| know it is from planes, as I hear words like "Southwest",
etc. Without
| my transmitter on, all I hear is static on 104.1
| but when I turn on my transmitter, the planes seem to over
ride my
| signal.
|