Hi Wolf, Domenico, Jim,
Am 05.12.2013 19:48, schrieb wolf_dl4yhf:
Hi Domenico,
There are a few configurations available in SL itself (in the 'Quick
Settings' menu under 'Slow Morse Reception / QRSS', and on Stefan's (or
was it Markus' ?) site.
It was Markus' site. I'm still using V2.76b18 which works fine for me
since years. So my config files are not up to date, maybe, for the
latest SL version. Furthermore it is necessary to make several
adjustments to make the settings working on the new RX site. Thus i
think it may be better to provide e.g. a Teamviewer (temporal) link for
remote access for the helping person to the running VLF PC to make
individual adjustements.
About the grabber upload, i would also recommend dropbox, which works
fine for several grabbers worldwide.
73, Stefan/DK7FC
Quite important (for FFT frequency bin widths in the milli- or
microhertz range) is the continuous calibration of the sampling rate,
because with a normal off-the-self soundcard the sampling rate is not
stable enough, resulting in the signal energy being spread across
several FFT bins. There are some notes on the possible calibration /
drift compensation options in the help system. For details, I suggest
to discuss the subject in the spectrum lab user group at yahoo.
To run a grabber, you will need a command-line-driven FTP utility, or
some other tool which periodically uploads the screenshots to a website
/ dropbox / etc . There is no FTP client built inside SL.
Best regards,
Wolf DL4YHF .
Am 04.12.2013 15:58, schrieb STEM - Putignano (BA):
Hi all DR OM
i want to test this band and i'm looking to activate a grabber. Someone
of you can provide me a suitable .usr file for Spectrum Lab for
a 9k grabber ?
I have already downloaded the sw and i want to say a big thanks to
DL9YHF for his super job.
73, Domenico/iz7slz
Hi Graham, Stefan and Markus,
sri,
the TX is still off. Too wet here around
Yes, Stefan, your grabber rcvd the emissions completely.
Graham, I think you mean my equipment. It’s a
resonant Marconi design excited by a field winding totally isolated
from it. It is tuned by moving one coil into the other or vv.
Makes abt 3,5km coil wire, 17m vertical and 300m top wire sloping down
to abt 10m. All 1,7mm Litze.
GL
Uwe/dj8wx jo43sv
Von: [email protected]
Gesendet: 03.12.2013 00:14
An: [email protected]
Betreff: Re: Re: Re: LF: 8970,022Hz
Uwe,
Do you have any info on the tuner/matching system ?
Tnx -G,
Sent: Sunday, December 01, 2013 4:30 PM
Subject: Re: Re: Re: LF: 8970,022Hz
Hi all,
the TX was off from 1348UTC until 1534UTC. I had to
repair the antenna.
One of the top load wires came down. The ribbon behind
the isolator changed to coal
(corona effect during rain periods).
Tks for reports.
Sri for the QRM, Markus.
GL
Uwe/dj8wx jo43sv
Von: [email protected]
Gesendet: 01.12.2013 14:12
An: [email protected]
Betreff: Re: Re: LF: 8970,022Hz
Hi Uwe,
no luck
here so far. The primary reason seems to be a slightly unstable QRM
line centered on 8970.3 Hz, probably one of many emitted by the railway
line 400 m away (see lower part of grabber window). For me, eg. 0.2 Hz lower
would be a clear frequency. But as QSY from your side would imply
reparking all the other grabbers, I guess I'll just have to live with
it for the time being. Will keep on trying
anyway...
Best 73,
Markus (DF6NM)
Sent: Friday, November 29, 2013 1:37 PM
Subject: Re: Re: LF: 8970,022Hz
The DARC
homepage server and ftp access procedure have recently been modified.
I've restarted
the temporary VLF grabber at
Good luck!
73, Markus (DF6NM)
Sent: Friday, November 29, 2013 12:04 PM
Subject: Re: Re: LF: 8970,022Hz
Hi Markus, Jim, Laurence and Eddie,
on the air agn since 1043UTC. it will stay
so the coming hours. tomorrow the same procedure as today.
mom it is raining.
yes, Markus, it is the same ant and the
same pwr (a new DJ 4kW-PA, output reduced to 500W). and no, I don’t
know what it is at -38mHz. Paul will know, I guess.what abt ur
grabber? new URL?
GL
Uwe/dj8wx jo43sv
Von: [email protected]
Gesendet: 29.11.2013 10:16
An: [email protected]
Betreff: Re: LF: 8970,022Hz
Wonderful news Uwe
I had to abandon the attempt to find you last night as my storage
battery failed. :-(
This morning using Solar Power my RX is just up and producing the first
display.
I assume you are still on as I have peak at 9870.022Hz. In 424uhz, the
47uhz window is not ready yet.
http://www.g3zjo.talktalk.net/vlfgrabber.htm
Now for some battery work down in a cold shed so i can continue after
dark.
73 Eddie G3ZJO
On 28/11/2013 18:37, [email protected]
wrote:
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