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Thread-Topic: LF: vlf stuff
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From: "Daniele Tincani" <daniele.tincani@ericsson.com>
To: <rsgb_lf_group@blacksheep.org>
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Subject: RE: LF: vlf stuff
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Hi Lawrence, probably you could use the lowest-frequency alpha station for=
calibration purposes.
I heard from Wolf that he was working on a built-in frequency calibration=
tool for SpectrumLab but I don't know about current progress.
I have so much noise at my sub-urban location that I have almost renounced=
to receive something interesting below 10KHz. VLF gentlemen here in this=
group suggested that I switch on a different solution that is to find a=
quieter place far from civilization :-) A portable E-probe plus a digital=
recorder should be a better setup for me in that case...
Cheers
D.
=20
________________________________
From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@black=
sheep.org] On Behalf Of Laurence KL1X
Sent: gioved=EC 22 aprile 2010 17.09
To: rsgb_lf_group@blacksheep.org
Subject: RE: LF: vlf stuff
=20
Stefan, Xtain, Danielle, Bob - thanks for the comments -
=20
On the QRM from the PC - no I dont get any (problematic) unless the loop=
is within 3 metres or so of the loop - I have a 15m length of RG58 50 ohm=
coax to the loop and the background iono/qrn masks any noise that I comes=
from the unit - Ill take some screen shots and publish.=20
=20
Even some 400m from the nearest power line I can see 60Hz harmonics and so=
me PLC stuff so Ill have to go out into the Plains a bit further.=20
=20
The aim perhaps is to look for W1VLF or other signals (yourselves) sometim=
e in the future -
=20
I did some VLF receiving stuff is Asia Pacfic countries over the past few=
years - an example from China http://kl1x.com/vlfchina.jpg and from the=
Polar regions some 30 years ago.
=20
=20
I didnt get a lot of time last night as I was getting bitten by mosquitoes=
and was wearing short trousers but we had thunderstorms to our West which=
spoilt any long distance reception -so much so that Alphas werent visible=
- The normal US and some other VLF stations were good enough. Ill wait fo=
r a quieter time and smother myself with "bug dope" but the loop/preamp wa=
s producing good results (its very very quiet) -
=20
I used the loop right next to the Television to calibrate the receiver lo=
oking at the sync but I need to revisit this given some of the comments ab=
out digital TV's.
=20
Laurence KL 1 X in 5
bartlesville OK
http://kl1x.com
=20
________________________________
=20
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<div>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span style=
=3D'font-size: 12.0pt'>Hi Lawrence, probably you could use the lowest-fre=
quency alpha station for
calibration purposes.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span style=
=3D'font-size: 12.0pt'>I heard from Wolf that he was working on a built-i=
n frequency calibration
tool for SpectrumLab but I don’t know about current progress.<o:p></=
o:p></span></font></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span style=
=3D'font-size: 12.0pt'>I have so much noise at my sub-urban location that=
I have almost renounced
to receive something interesting below 10KHz. VLF gentlemen here in this=
group
suggested that I switch on a different solution that is to find a quieter=
place
far from civilization </span></font><font face=3DWingdings><span style=3D=
'font-family:Wingdings'>J</span></font> A portable E-probe plus a digital
recorder should be a better setup for me in that case…<o:p></o:p></p=
>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span style=
=3D'font-size: 12.0pt'>Cheers<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span style=
=3D'font-size: 12.0pt'>D.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span style=
=3D'font-size: 12.0pt'><o:p> </o:p></span></font></p>
<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font si=
ze=3D3 face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>
<hr size=3D2 width=3D"100%" align=3Dcenter tabindex=3D-1>
</span></font></div>
<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span style=3D'font-s=
ize:10.0pt; font-family:Tahoma;font-weight:bold'>From:</span></font></b><=
font size=3D2 face=3DTahoma><span style=3D'font-size:10.0pt;font-family:T=
ahoma'>
owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.=
org] <b><span style=3D'font-weight:bold'>On Behalf Of </span></b>Laurence=
KL1X<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> gioved=EC 22 aprile=
2010 17.09<br>
<b><span style=3D'font-weight:bold'>To:</span></b> rsgb_lf_group@blackshee=
p.org<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: LF: vlf stuff<=
/span></font><o:p></o:p></p>
</div>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span style=
=3D'font-size: 12.0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DVerdana><span style=3D'font-siz=
e:10.0pt; font-family:Verdana'>Stefan, Xtain, Danielle, Bob - thanks=
for the
comments -<br>
<br>
On the QRM from the PC - no I dont get any (problematic) unless the loop=
is
within 3 metres or so of the loop - I have a 15m length of RG58 50 oh=
m
coax to the loop and the background iono/qrn masks any noise that I c=
omes
from the unit - Ill take some screen shots and publish. <br>
<br>
Even some 400m from the nearest power line I can see 60Hz harmonics and so=
me
PLC stuff so Ill have to go out into the Plains a bit further. <br>
<br>
The aim perhaps is to look for W1VLF or other signals (yourselves) sometim=
e in
the future -<br>
<br>
I did some VLF receiving stuff is Asia Pacfic countries over the=
past
few years - an example from China <a href=3D"http://kl1x.com/vlfchina.jpg"=
>http://kl1x.com/vlfchina.jpg</a>
and from the Polar regions some 30 years ago.<br>
<br>
<br>
I didnt get a lot of time last night as I was getting bitten by
mosquitoes and was wearing short trousers but we had thunderstorms&nb=
sp;to
our West which spoilt any long distance reception -so much so that Alphas
werent visible - The normal US and some other VLF stations were good enoug=
h. <st1:State w:st=3D"on"><st1:place w:st=3D"on">Ill</st1:place></st1:Sta=
te> wait for a quieter
time and smother myself with "bug dope" but the loop/preamp=
was
producing good results (its very very quiet) -<br>
<br>
I used the loop right next to the Television to calibrate the receiv=
er
looking at the sync but I need to revisit this given some of the comm=
ents
about digital TV's.<br>
<br>
Laurence KL 1 X in 5<br>
<st1:place w:st=3D"on"><st1:City w:st=3D"on">bartlesville</st1:City> <st1:=
State w:st=3D"on">OK</st1:State></st1:place><br>
<a href=3D"http://kl1x.com">http://kl1x.com</a><br>
<br>
<o:p></o:p></span></font></p>
<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font si=
ze=3D2 face=3DVerdana><span style=3D'font-size:10.0pt;font-family:Verdana=
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<hr size=3D2 width=3D"100%" align=3Dcenter id=3DstopSpelling>
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<p class=3DMsoNormal><font size=3D2 face=3DVerdana><span style=3D'font-siz=
e:10.0pt; font-family:Verdana'><o:p> </o:p></span></font></p>
<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font si=
ze=3D2 face=3DVerdana><span style=3D'font-size:10.0pt;font-family:Verdana=
'>
<hr size=3D2 width=3D"100%" align=3Dcenter>
</span></font></div>
<p class=3DMsoNormal><font size=3D2 face=3DVerdana><span style=3D'font-siz=
e:10.0pt; font-family:Verdana'>Hotmail is redefining busy with tools for=
the New Busy.
Get more from your inbox. <a href=3D"http://www.windowslive.com/campaign/=
thenewbusy?ocid=3DPID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_2" target=
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