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
>
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> *
>
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