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FCC revises Part 15 AM rules

N

nd2023

Banned
Effective tomorrow, a new rule is in effect to limit the maximum range of an AM Part 15 station. The field strength cannot be more than 300 microvolts per meter from 3 meters from the antenna. This is good enough to cover up to 200 feet in the 40 dBu signal range.<P ID="signature">______________
17-year-old radio geek
Location: Princeton Junction, NJ
AIM: KewlDude471
WWPH 107.9 FM: http://wwph1079fm.no-ip.org</P>
 
I don't know anything about this, what I do know is that the FCC has updated the FCC rules in Feb; the changes I saw were nothing to 15.219 or 15.209, the power limit and radiation limit. What I did see that I think was new was a section prohibiting sale of amplifiers for Part 15 devices and a section prohibiting using antennas except the antenna the was designed for part 15 unit.

So I guess that means that it wouldn't be legal anymore to use anything but a whip antenna for our product since that is what is was certified with.
 
> Effective tomorrow, a new rule is in effect to limit the
> maximum range of an AM Part 15 station. The field strength
> cannot be more than 300 microvolts per meter from 3 meters
> from the antenna. This is good enough to cover up to 200
> feet in the 40 dBu signal range.
>
You could shout and be heard farther! As the wise man once said...whoop-dee-frickin'-do!

PTR
 
> Effective tomorrow, a new rule is in effect to limit the
> maximum range of an AM Part 15 station. The field strength
> cannot be more than 300 microvolts per meter from 3 meters
> from the antenna. This is good enough to cover up to 200
> feet in the 40 dBu signal range.

Checks old NPRM notices. Nope. Checks calendar. OK, fine!
 
LPAM set to start

You forgot to mention the second part of it....LPAM application filing window starts August 1, 2006. The FCC engineers believe that part15 AM operation will cause harmful interference and/or confusion with licensed LPAM. Power goes from 10 watts to 375 watts and night operation is permitted under to-be determined circumstances. <P ID="signature">______________
</P>
 
> I don't know anything about this, what I do know is that the> FCC has updated the FCC rules in Feb; the changes I saw were> nothing to 15.219 or 15.209, the power limit and radiation> limit. What I did see that I think was new was a section> prohibiting sale of amplifiers for Part 15 devices and a> section prohibiting using antennas except the antenna the> was designed for part 15 unit. > > So I guess that means that it wouldn't be legal anymore to> use anything but a whip antenna for our product since that> is what is was certified with.> Something like that. But part 15 transmitters that do about the same thing as the Rangemaster, that have similar antennas designed for their use also are not discluded.Anything but a whip antenna doesn't work for a Rangemaster and you know this.So, for the spring, I'm putting my antenna on for sale at $299.99 for the sstran AMT: this won't come with the FIM, but it does have a 100% bigger ground system this year, a wider antenna base and a bigger transmitter box....a good price! I'll take exactly 7 orders for this unit, deliverable the begining of May.http://antenna18431.tripod.com/antenna.htmAfter that I am just building coils and parts for the sstran AMT-3000 and related units.Antenna Guy Carl<P ID="signature">______________
[email protected], [email protected],[email protected]</P>
 
> Effective tomorrow, a new rule is in effect to limit the
> maximum range of an AM Part 15 station. The field strength
> cannot be more than 300 microvolts per meter from 3 meters
> from the antenna. This is good enough to cover up to 200
> feet in the 40 dBu signal range.
>
April Fool?
 
> > I don't know anything about this, what I do know is that
> the> FCC has updated the FCC rules in Feb; the changes I saw
> were> nothing to 15.219 or 15.209, the power limit and
> radiation> limit. What I did see that I think was new was a
> section> prohibiting sale of amplifiers for Part 15 devices
> and a> section prohibiting using antennas except the antenna
> the> was designed for part 15 unit. > > So I guess that
> means that it wouldn't be legal anymore to> use anything but
> a whip antenna for our product since that> is what is was
> certified with.> Something like that. But part 15
> transmitters that do about the same thing as the
> Rangemaster, that have similar antennas designed for their
> use also are not discluded.Anything but a whip antenna
> doesn't work for a Rangemaster and you know this.So, for the
> spring, I'm putting my antenna on for sale at $299.99 for
> the sstran AMT: this won't come with the FIM, but it does
> have a 100% bigger ground system this year, a wider antenna
> base and a bigger transmitter box....a good price! I'll
> take exactly 7 orders for this unit, deliverable the
> begining of
> May.http://antenna18431.tripod.com/antenna.htmAfter that I
> am just building coils and parts for the sstran AMT-3000 and
> related units.Antenna Guy Carl
>

This is what I was wondering. If an SS Tran TX has no antenna, do you make or buy the antenna that is recommended on the manufacturer's website? What about a homebrew part-15 TX? Does the designer/builder get to decide what antenna would work best with it? Apparently, legally, the designer can as long as it's within the 3 meter limit.

More FCC ambiguity.

db
 
>
> This is what I was wondering. If an SS Tran TX has no
> antenna, do you make or buy the antenna that is recommended
> on the manufacturer's website? What about a homebrew
> part-15 TX? Does the designer/builder get to decide what
> antenna would work best with it? Apparently, legally, the
> designer can as long as it's within the 3 meter limit.
>
> More FCC ambiguity.

I think what they are saying is that to qualify as being certified you can't change the reccomended antenna, as far as homebrew if you can build a transmitter from scratch with your own design I think the FCC allows your judgement and testing.
 
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