The sidebands spread 900 hz spaced each side of the carrier at 100 hz
intervals.The dirt has now gone, fault rectified.
g3kev
----- Original Message -----
From: "Graham" <[email protected]>
To: <[email protected]>
Sent: Sunday, January 17, 2010 3:44 PM
Subject: Re: LF: Dirty carrier
> Carrier is 30 db over the noise floor at Liverpool , no hum lines
> showing,
> only modulation spread , nothing showing at Birmingham either
> > http://www.wireless.org.uk/grab/
>
> If it was 100 Hz hum , then the side bands would be , 503.900 and
> 504.100 .. that was the reason for picking 502.4 as the wspr
frequency
> to make use of the 100 Hz window under 504 ..
>
> G ..
>
> --------------------------------------------------
> From: "mal hamilton" <[email protected]>
> Sent: Sunday, January 17, 2010 3:05 PM
> To: <[email protected]>
> Subject: Re: LF: Dirty carrier
>
> >
> > I think it is a problem with RTE 2nd harmonic 100 hz hum on the carrier
> > 503.4 K/cs
> > de mal/g3kev
> >
> > ----- Original Message -----
> > From: "James Moritz" <[email protected]>
> > To: <[email protected]>
> > Sent: Friday, January 15, 2010 5:50 PM
> > Subject: Re: LF: Dirty carrier
> >
> >
> >> Dear Mal, LF Group,
> >>
> >> Nothing unusual visible/audible here...
> >>
> >> Cheers, Jim Moritz
> >> 73 de M0BMU
> >>
> >>
> >
> >
> >
>
>
>
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