[Elecraft] magnetic fields and phase noise?

[Geoffrey Mackenzie-Kennedy]

Sorry, I had to post twice.
Geoff
GM4ESD


----- Original Message -----
From: "Geoffrey Mackenzie-Kennedy" <gmk at gm4esd.fsworld.co.uk>
To: "Earl W Cunningham" <k6se at juno.com>
Sent: Sunday, March 20, 2005 7:41 PM
Subject: Re: [Elecraft] magnetic fields and phase noise?


> Earl,
> How strong was Vic's carrier at your Pro3 when he was QRO with the 87A,
and
> how far down were the sidebands? Not thinking of Rx problems at all, just
> trying to get an accurate pictue of Vic's QRO signal.
> 73,
> Geoff.
> GM4ESD
>
>
> ----- Original Message -----
> From: "Earl W Cunningham" <k6se at juno.com>
> To: <vic at rakefet.com>; <elecraft at mailman.qth.net>
> Sent: Sunday, March 20, 2005 6:13 PM
> Subject: Re: [Elecraft] magnetic fields and phase noise?
>
>
> > Worked Vic, K2VCO this morning on 40m CW.  His K2/100 was absolutely
> > clean with no clicks and no noise on his CW sidebands while he was
> > running barefoot.
> >
> > When he ran ran QRO to his Alpha 87A, There were still no clicks,
however
> > there was noise on his sidebands extending out +/- about 1 kHz from
> > center frequency.  I honestly expected it to be worse than that, but he
> > apparently also has the same problem with the magnetic field from the
> > magnetic field from the HV xfmr in his amp getting into his K2.
> >
> > I was using my IC-756Pro3 with a 50 Hz bandwidth.  Tuning off to either
> > side of Vic's CW signal where the tone disappeared, you could still copy
> > him due to the noise on his sidebands.
> >
>