[Amps] IMD vs. Vcc

[Gary Schafer]

I think some of you guys are reading the wrong info. The commercial short-wave
broadcast stations have some bandwidth specs but not hams.

73
Gary  K4FMX


Terry Gaiser wrote:

> Marv,
>
> Thanks much for pointing out where the "real" information is ... although
> "A3J" is nowhere to be found ... here is the text for SSB (supressed
> carrier) transmission:
>
> >"Telephony, single-sideband suppressed  B<INF>n</INF>=M-lowest modulation
> frequency        M=3000, lowest >modulation frequency is 3000 Hz,   2K70J3E
> > carrier.
> 2700 Hz Bandwidth: 2700Hz=2.7 kHz
>
> >[[Page 547]]"
>
> I wonder if anyone has pointed out the typo where it states "lowest
> modulation frequency is 3000 Hz," ?
> Lowest modulation frequency should read 300 HZ .... M=3000 - 300Hz = 2.7
> khz.
>
> Lets don't tell the HIFI audio guys that they cannot transmit anything below
> 300 HZ or any wider signal than 2.7 Khz.
>
> I am still trying to figure out Tom's statement: "(A3J means 3kHz wide)"
> .... there is no "J" symbol for the 3rd identifier.
>
> Where they DO spec 3 khz of bandwidth for SSB FULL CARRIER it reads:
>
> >"Telephony, single-sideband, full       B<INF>n</INF>=2M
> M=3000, Bandwidth: 3000 Hz=3 >kHz                  3K00H3E
>  >carrier."
>
> Terry W6RU
>
> ----- Original Message -----
> From: "Radio WC6W" <wc6w@juno.com>
> To: <w6ru@bak.rr.com>; <amps@contesting.com>
> Sent: Monday, April 01, 2002 8:56 PM
> Subject: Re: [Amps] IMD vs. Vcc
>
> >
> > On Mon, 1 Apr 2002 13:48:16 -0800 "Terry Gaiser" <w6ru@bak.rr.com>
> > writes:
> > > Tom,
> > >
> > > Where is A3J specified as 3 KHZ please ?
> > >
> > > Terry W6RU
> > >
> >
> > Hi Terry,
> >    The bandwidth specs are in part 2 of CFR 47.
> >
> >    The test specifications are also in the same part.
> >
> > 73 & Good evening,
> >    Marv  WC6W
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > *
> >
> > ________________________________________________________________
> > GET INTERNET ACCESS FROM JUNO!
> > Juno offers FREE or PREMIUM Internet access for less!
> > Join Juno today!  For your FREE software, visit:
> > http://dl.www.juno.com/get/web/.
> >
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps