Are there any mods required to make my Alpha 99 do continuous duty HIFI Pactor?
I'll start up a 24/7 ship-to-shore email gateway for guys with yachts over
70'.
Checkin freq = 14.178 :-)
N4GI
----- Original Message -----
From: Frank Mayer <domino@worldlynx.net>
Date: Thursday, August 26, 2004 3:44 pm
Subject: Re: [Amps] Centurion cooling improvement ideas for AM service
> Having bass that extends well below 100hz will cause a SSB signal
> to be wide by modulating too close to the carrier point, crossing
> over onto the other sideband, and virtually turning into a DSB
> signal If you don't believe this just try tuning a "hi-fi" guy in
> on using the AM mode. The signal will be 100% intelligible!! You
> can even hear the carrier when you tune across one of these
> signals. Plus the fact when one tries to force over 10db of extra
> energy at very low or very high frequencies the IMD is terrific
> and that also contributes to the width of the signal.
>
> WY3D
> ----- Original Message -----
> From: Joe Isabella
> To: Amps
> Sent: Thursday, August 26, 2004 3:02 PM
> Subject: Re: [Amps] Centurion cooling improvement ideas for AM
> service
>
> Apparently, I'm one of "these morons". However, be careful not
> to cast stones when you live in a
> glass house, because "Bassiness" has nothing to do with the
> extended BW. Only the high
> frequencies take up the extra amount between 3 and 6 kHz. I run
> out to 6k sometimes, but only
> when there is enough space. I'll continue to use my bottom end
> even if I only run out to 3.2kHz
> or so.
>
> One other thing to keep in mind is that these rules only affect
> the US. There are many Canadians
> running 6k SSB (hence my moving to Canada comment), so don't
> expect all the 6k SSB to miraculously
> disappear. Their gov't allows 6k in the voice spectrum which is
> plenty. I don't understand why
> we have to put such strict limits on it.
>
> Oh well -- I guess I'll keep on using AM at 9 kHz of bandwidth
> all the time istead of the 4 to 6
> kHz that I would normally have been running on SSB. Be careful
> what you ask for.
>
> Joe,
> N3JI
>
> --- "Steven Grant, W4IIV" <stevengrant98@yahoo.com> wrote:
>
> > the reason they are doing this is because some folks love to
> have very bassey audio. thier egos
> > say that they must have broadcast quality audio.
> > i dont think they will do away with AM or 10m FM
> > i do believe that they need to limit SSB widths cause some of
> these "morons" insist on taking up
> > bandwidth with a 5kc wide SSB signal
> > steven, W4IIV
> >
> > "R.Measures" <r@somis.org> wrote:
> >
> > On Aug 25, 2004, at 1:12 PM, Joe Isabella wrote:
> >
> > > Prezactly... Except that it allows wider digital modes in
> the "CW"
> > > bands, and it limits SSB Voice
> > > to 3 kHz. I'm not a big fan of this move by the League --
> seems silly
> > > to put these limits in
> > > place on voice. I think I'll move to Canada...eh??
> > >
> > Joe -- Letting the amateur radio community determine how a
> band is used
> > has worked well enough on 160m. The vast CW wasteland
> presently on 80m
> > is a good example of bad rule-making.
> > end
> >
> > > Joe
> > >
> > > --- Vic Rosenthal wrote:
> > >
> > >> R.Measures wrote:
> > >>
> > >>> Thanks, Joe. So this means that if adopted, 10m FM as well
> as AM
> > >>> will
> > >>> be illegal.
> > >>
> > >> The bandwidth allowed in 29.0 - 29.7 MHz is 16 KHz.
> > >>
> > >> There is a specific provision to allow DSB AM in the 3 KHz
> areas: > >>
> > >> "(1) The 3 kHz maximum bandwidth does not apply to double-
> sideband > >> amplitude-modulated phone A3E emissions which are
> limited to --26 dB
> > >> bandwidths of 9 kHz."
> > >>
> > >> You can read the whole thing at:
> > >>
> > >>
> > >>
> > >> It's not going to make any revolutionary changes.
> > >>
> > >> --
> > >> 73,
> > >> Vic, K2VCO
> > >> Fresno CA
> > >> http://www.qsl.net/k2vco
> > >>
> > >>
> > >> _______________________________________________
> > >> Amps mailing list
> > >> Amps@contesting.com
> > >> http://lists.contesting.com/mailman/listinfo/amps
> > >>
> > >
> > >
> > >
> > >
> > > __________________________________
> > > Do you Yahoo!?
> > > Yahoo! Mail Address AutoComplete - You start. We finish.
> > > http://promotions.yahoo.com/new_mail
> > > _______________________________________________
> > > Amps mailing list
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> > >
> > >
> > Richard L. Measures, AG6K, 805.386.3734. www.somis.org
> >
> > _______________________________________________
> > Amps mailing list
> > Amps@contesting.com
> > http://lists.contesting.com/mailman/listinfo/amps
> >
> >
> >
> > STEVEN GRANT W4IIV
> >
> > ---------------------------------
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> >
>
>
>
>
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