[Lowfer] Part 15 Problems.

[Bill Ashlock]

Kurt,

I've been into Pt 15 communications for quite a few years and also have been associated with many others that go back a whole lot further. Believe me, if there were any restriction on the modulation format, I would have heard about it.

Part 15 regulations also cover unintended emissions, such as those from fluorescent light fixtures, medical equipment, computers, toys, etc, and the regulations are basically the same.... and it isn't likely that the modulation from these devices would have an ID.

We 'intentional emitters' identify our modulation only to make it possible to get feedback from those that have received our distant signals and not to satisfy any regulation.

Bill

> From: kd7jyk at earthlink.net
> To: esmithmail at gmail.com; lowfer at mailman.qth.net
> Date: Mon, 12 Oct 2009 20:34:43 -0700
> Subject: Re: [Lowfer] Part 15 Problems.
> 
> >From what I recall, the FCC didn't want a bunch of experimenters tossing a
> bunch of steady carriers out there and gumming things up without there being
> some sort of uniqueness to the signal identifying it as intentional.  From
> what I recall, this is why we voluntarily use callsigns, even though they
> are not required, use unique modulation methods, square wave, WM, sawtooth
> et cetera, ANYTHING to make the signal appear unique, not just to ourselves,
> but I really do recall reading it was required- somewhere.  I swear there
> was mention of it on this or the Part 15 list within the past couple of
> weeks.  I was talking with my wife, she used to test for FCC, CE and so
> forth in the 80-90's and she recalls such a requirement in what we think is
> Part 15, but she can't recall the details either.  I've gone over Part 15
> again and again, I didn't see anything familiar, I also checked Part 95 out
> of desperation.  I THOUGHT it may have had something to do with MedFER
> operation or similar experimental operation, but couldn't find anything
> relevant to that section of spectrum.
> 
> VERY odd.
> 
> Kurt
> 
> ----- Original Message -----
> From: <esmithmail at gmail.com>
> 
> Oh agreed, absolutely - just trying to think of where I had seen language
> like Kurt remembered.  Definitely would not apply to pt 15.
> 
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