Re: LF: ZEVS transmission at 1800BST

[Chris Dillon <c.r.dillon@dsl.pipex.com>]

Hi Gerhard - I've attached my SL .usr file for you. I set it up only 
this afternoon so I don't claim it to be optimised in any way - 
particularly the noise blanker.  The FFT bin width is 10.17mHz with a 
scroll interval of 40s. Input is decimated by 144 and the fft size is 
32768. I understand Eddie G3ZJO is using similar settings and E-field 
probe  - you can see the ZEVS trace on his grabber at 
http://g3zjo.bplaced.net/index.htm. In fact Eddie's trace shows the 
transmission started earlier than I thought at around 1740 BST (1640UTC).
73 Chris G3WCD



On 08/05/2011 21:57, Gerhard Hickl wrote:
> Hi Chris, LF!
>
> Very interesting....I'm also using Stefan's E-probe and on 9khz ist's
> very sensitive. My probe is more than 15m above ground and I'm also
> trying to receive the ZEVS-transmissions. I have the window running
> since a few days but nothing on screen here in JN88hl....
>
> I'm just using a low-pass filter with 1000Hz -3db point and the
> noise-blanker afterwards. I wonder about your SL-settings.
>
> 73
> OE3GHB
> Gerhard
>
>
>
> Am Sonntag, den 08.05.2011, 18:58 +0100 schrieb Chris Dillon:
> > Hi all - ZEVS transmission starting at 1800 BST received at IO92vf
> > using a 'Stefan' pre-amp with a 1m probe about 3m high.
> > Still transmitting a constant carrier on 82 Hz at 1857 BST. Wonder if
> > they QSL reception reports?!
> >
> > 73 Chris G3WCD
> >
> >
> >
> >
> >
> >
> >
> > On 08/05/2011 09:37, qrss wrote:
> > > Stefan / LF
> > >
> > > Message commenced 0800UTC.
> > >
> > > Eddie

ZEVS 82Hz.USR
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