Total posts : 45366
Problem is that no one will listen to long wave or short wave and how many people even in your area even have one(shortwave or longwave radio), or would go out and buy one. Plus the fidelity is half as good as AM(medium wave) and there’s still the noise interference.
The part 15-239 was only set up to allow a wireless signal to get to FM radios in your house and the yard….not to broadcast to the neighbourhood…unfortunately.
Fortunately, here in Canada, you can get a hobby FM station off the ground because of BETS-1 which as Tim’s tests showed, you have to have more or less 2000 to 2500uV/M at 3 meters to get 100uV/M at 30 meters away(BETS-1) A whole lot more than part 15.
Even with AM, getting the range of up to a mile providing you have the ability to do the more elaborate set up (like having a house and property), is outside and clear line of site. Not getting into other houses or buildings, and that’s on a car radio not a “regular” radio especially if it’s plugged in to A/C in a home. And at night…forget it.
No the FCC is not your friend, they are the police, although we are brought up to think the police are your friends. But if you are a corporation with lots of money then the FCC is your friend.