[Icom] Amateur Radio, Audio, and RF levels - 14.178 - Revisited
Ed
[email protected]
Fri, 18 Apr 2003 22:56:21 -0400
It would seem to me that the FCC is going to decide for us if it isn't taken
care of by self policing.
ED YEARY W4TEY
325 CUMBERLAND DRIVE
HARROGATE, TN. 37752-6942
----- Original Message -----
From: "Chris BONDE" <[email protected]>
To: <[email protected]>
Sent: Friday, April 18, 2003 10:12 PM
Subject: Re: [Icom] Amateur Radio, Audio, and RF levels - 14.178 - Revisited
> From test in following:
> >Some amateurs have complained that
> >enhanced SSB signals can take up 8 kHz or more of spectrum, cause
splatter
> >and unnecessarily interfere with other stations.
>
> I have always been lead to believe that the Canadian max bandwidth is 6kHz
> from 160 to 12m, and, no splatter. This, I believe is for everything AM,
> FM, SSB, ESB etc.
>
> Chris opr VE7HCB
>
>
>
> At 06:46 PM 2003-04-18 -0400, you wrote:
>
> >Group,
> >
> >I have long been of the opinion that much too much time has been spent by
> >some hams in a quest for hi-fi SSB transmitted audio. Seems there are
others
> >who share that opinion . . . For different reasons even.
> >
> >You can make up your own mind as to whether these folks are pioneers who
are
> >simply "pushing the envelope" or whether they are out of bounds just as
those
> >who exceed legal power levels are.
> >
> >Regards,
> >
> >Bill
> >
> >
> > >From the April 18, 2003 ARRL Letter (The American Radio Relay League):
> >
> >==>"ENHANCED SSB" BANDWIDTHS "EXTREMELY INCONSIDERATE," FCC SAYS
> >
> >The FCC has sent advisory notices to four enthusiasts of what's become
> >known as "enhanced SSB"--the practice of engineering transmitted
> >single-sideband audio to approach broadcast quality. Letters went out
> >earlier this month to amateurs in Illinois, Florida and New Jersey who
are
> >aficionados of enhanced SSB, also known as "upper wideband" and "lower
> >wideband."
> >
> >"The Commission has received numerous complaints regarding the operation
> >of your station," FCC Special Counsel Riley Hollingsworth wrote Paul
> >Christensen, W9AC, John Anning, NU9N, Anthony Latin, W4NSG, and Sareno
> >Salerno, W2ONV, on April 3. Hollingsworth said complaints to the FCC
> >alleged that the bandwidths of the stations' enhanced SSB emissions were
> >"wider than necessary and contrary to good engineering practice."
> >
> >"Wideband overly-processed audio, especially when coupled with the high
> >intermodulation levels of certain amplifiers, results in the use of
> >bandwidths extremely inconsiderate of other operators," Hollingsworth
> >said. Such transmissions may violate FCC rules and may be at odds with
> >what Hollingsworth described as "the expectation that the Amateur Service
> >be largely self-regulated."
> >
> >Occupying more bandwidth than necessary in a heavily used amateur band,
> >Hollingsworth wrote, not only could generate ill will among operators but
> >lead to petitions asking the FCC to establish bandwidth limits for
amateur
> >emissions. At present, the FCC imposes no specific bandwidth limits on
> >various amateur modes.
> >
> >Hollingsworth cited 307(a) of the Amateur Service rules that requires
> >the signal of an amateur station not occupy "more bandwidth than
necessary
> >for the information rate and emission type being transmitted, in
> >accordance with good amateur practice." Some amateurs have complained
that
> >enhanced SSB signals can take up 8 kHz or more of spectrum, cause
splatter
> >and unnecessarily interfere with other stations.
> >
> >"The Amateur Service is not a substitute for the Broadcast Service,"
> >Hollingsworth said, "and the frequencies allocated to the Amateur Service
> >were not allocated for a 'broadcast quality' audio emission or sound."
> >Hollingsworth suggested the enhanced SSBers operate when the bands are
> >less busy or on bands that are not heavily used.
> >
> >The many complaints the FCC has been getting--20 or so per week--leads to
> >the conclusion that the stations' enhanced SSB operation is having "a
> >negative impact" on the Amateur Service, Hollingsworth said. He requested
> >that the four amateurs "fully review the rules" and make sure their
> >stations conform to them.
> >----
> >Your Moderator: Dick Flanagan W6OLD, [email protected]
> >Icom Users Net: Sundays, 1700Z, 14.315 MHz
> >Icom FAQ: http://www.qsl.net/icom/
>
>
> ----
> Your Moderator: Dick Flanagan W6OLD, [email protected]
> Icom Users Net: Sundays, 1700Z, 14.315 MHz
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>