ORIGINAL: Sport_Pilot
and if there is
any interference from a primary user, we have to accept it and "write the channel off" in that location.
That is a huge missconception, that statement means that you must immediately turn off your transmitter if you are interferring with the comercial frequency, the comercial trasmitter may keep transmitting
until they can fix it! That doesn't mean that they can continue interfering our frequencies forever. If you know who is interfering, then call them up and let them know! They may also be interfering with adjacent comercial frequencies. If there is no action call the FCC!
Sorry Sport, but I believe you're wrong here. We are absolutely secondary users on the frequencies we fly on.
If a primary user wants to use the frequency corresponding to our #42, then he absolutely has that right.
That said, it might not be the smartest move, knowing that RC users are "regulars" on those channels.
Most anybody with any sense would pick a channel in between, instead. They don't want accidents either.
Still, we can do nothing, if a person hates RC enough to run their equipment on any of our channels.
What you've stated would only apply, if the primary user was on some channel in between ours, and happened
to have spurious emissions that were causing interference. In that case, yes, he'd have to fix his problem.
NObody is allowed to have a crappy transmitter on the air. (Well... someone still has to catch them, first)