Re: Re: K1 on USB CW
Posted by
Steve Lawrence-2 on
Jun 18, 2004; 1:35am
URL: http://elecraft.85.s1.nabble.com/K1-on-USB-CW-tp367868p367887.html
Vic - As I recall from about a million years ago, when the hardware was
actually built, when you subtracted to get to 75m, the sideband
reversed. If not, the standard on 160-80-40 today would be USB - but it
isn't.
73, Steve WB6RSE
On Jun 17, 2004, at 4:59 PM, Vic Rosenthal wrote:
> This is just wrong. Say you generate a USB signal at 9 MHz from a 1
> KHz
> audio tone. The (suppressed) carrier of the generated USB signal is at
> 9.000 MHz and the upper sideband is at 9.001 Mhz. Then mixing with a
> 5.0 MHz VFO would give sum frequencies of 14.000 and 14.001 MHz as well
> as differences of 4.000 and 4.001 MHz. This is USB in both cases.
>
> Of course, the VFO would tune in opposite directions.
>
> Even a CW operator like me can add and subtract!
>
> --
> 73,
> Vic, K2VCO
> Fresno CA
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