Detailing the Sketchy Rules

In this blogger's opinion the Part 15 Rules are sketchy.

They lay out a model scenario; a general situation; a typical setup.

But the Part 15 Rules do not attempt to anticipate the infinite possible situations that might arise, and therefore must be applied creatively.

Let's start with the known, and work our way outward from there.

At your house the Rules allow an AM transmitter with 3-meter antenna, 100mW to the input of the final RF stage. A well worn fact. Such a transmitter, if well installed, might reach 1,000-feet or better.

Suppose in four other blocks, east, west, north and south of your home, you owned other homes. A total of five homes.

Each of those homes would qualify for yet more of the same type Part 15 AM installations.

Suppose you consolidated these into a single, centrally located system.

You would be entitled to 500mW to the final RF stage and 15-meters of antenna.

Make sense?

Yes, it does.

That illustrates the intent of the Part 15 Rules.


MICRO1700's picture

Very Best Wishes,
Bruce, The Dog Radio Group

(Responsible for GREAT Part 15 stations
such as SLUG 88.3)


radio8z's picture

Not to me.


Corrosion's picture

I agree with Neil, and I'm sure the FCC would as well.
Anyone attempting such a stunt would be quickly ripped off the air and possibly fined.

Mark's picture

That wouldn't work! Doesn't make sense.
The rules apply to one transmitter at each separate location. Doing what you suggest, whether you own the houses or not, is just having a transmitter way over the legal limit in ONE location and I don't think you could get away with it. But you could, maybe?, have a legal set up at each of the 5 houses broadcasting the same thing from one feed(if that's possible)and cover more ground that way. That you may get away with.


Carl Blare's picture

Send in another jury.

Carl Blare

radio8z's picture

Perhaps my difficulty in making sense of this is that nowhere in the rules that I know of is there a limit on the number of transmitters which can be used on particular property (other than the limit of five home brew units per person).

So how would distributing transmitters on different properties be an advantage?


Mark's picture

Each transmitter has it's range so one transmitter at one location covers so much ground. Having a transmitter at several places, each with their coverage area, but near enough to each other and broadcasting on the same frequency would give you, in effect, a much larger broadcast area. Great if you could have the same feed from one source going to each transmitter.
Five transmitters on one property, on the same frequency, would just conflict with each other interfering with each others signal. The transmitters on one location would have to be all on different frequencies