[TenTec] 60M

George, W5YR w5yr at att.net
Fri May 16 02:33:26 EDT 2003


The government and the military, in short.

They specify frequency in terms of the center frequency of the occupied
bandwidth or channel width. Hams use the transmitted frequency for all
carrier-present modes and the suppressed carrier frequency for SSB, SSTV,
etc.

So, if a channel is 2.8 KHz wide and the FCC defines the center frequency
for the channel - and the R&O clearly says "center frequency" - then the way
our rigs are set up, we have to set the dial to that specified center
frequency and then lower the reading by 1400 Hz to put our
suppressed-carrier frequency on the lower-frequency edge of the channel such
that our occupied bandwidth will run from that edge upward 2.8 KHz.

It *is* different!   <:}

73/72, George
Amateur Radio W5YR -  the Yellow Rose of Texas
Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
"In the 57th year and it just keeps getting better!"
<mailto:w5yr at att.net>





----- Original Message -----
From: "Kip Glunt" <kipg at yorkinternet.net>
To: <tentec at contesting.com>
Sent: Friday, May 16, 2003 1:15 AM
Subject: Re: [TenTec] 60M


> I'm curious, when did the center of a Single Sideband signal (presuming it
could have an upper or lower sideband) become the specified frequency plus
or minus 1400 KHz.?  Where did this come from?
>
>
> ... Kip, WB3AFL
>
>
>
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec



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