Re: ULF: New carrier near 2970 Hz...

[DK7FC <73dk7fc@googlemail.com>]

Hi Paul,

Interesting. Do you also use the noise normalisation function which 
proved to be useful in recent stackings on 5170 Hz?
Still a few weeks before the 6 channel input soundcard for the Raspi 
appears...
73, Stefan

Am 22.03.2017 11:25, schrieb Paul Nicholson:
> Stefan wrote:
>
> > Isn't it extremely unlikely that this is something
> > elso than my signal??
>
> Well I don't know.  It would be an extraordinary achievement
> for your 2970 signal to reach this far.  It needs a result
> that can stand up to scrutiny.   I'd like to do some more
> work with it to get an unequivocal detection at 5 sigma.
>
> > I'm going to run the carrier another few days, at least
> > until friday,
>
> A few more days signal will help.   Adding 21st didn't
> improve the peak, nor did the blanker settings I left
> running last night.
>
> For these runs I am blanking each antenna channel
> independently, then mixing and phasing.  Usually I do
> the mixing first and blank the composite signal.
> While one channel is blanked and another isn't, the
> mix is wrong.  That ought to be worse than blanking
> after the mix.  With less than 5% blanking factor it
> might not be much of an issue either way.
>
> I can also look again at your previous 2970 tests,
> stacking the same 14:00 to 19:00 window.
>
> --
> Paul Nicholson
> --