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The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hello Uwe, At least, the dominant peak in the 'long-term' average spectrum (collected between last midnight and this morning) was right on spot, precisely on your frequency. I was using GBZ as frequency reference on the netbook. Will leave it running until next year.. [...] Content analysis details: (-0.1 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [195.4.92.91 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dl4yhf[at]freenet.de) -0.1 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 0bb7d8dd1b91237b22820287136fb7f4 Subject: Re: VLF: Uwe Opera-4H Content-Type: multipart/alternative; boundary="------------040302000503010104040403" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_40_50,HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Status: O X-Status: X-Keywords: X-UID: 3520 This is a multi-part message in MIME format. --------------040302000503010104040403 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Hello Uwe, At least, the dominant peak in the 'long-term' average spectrum (collected between last midnight and this morning) was right on spot, precisely on your frequency. I was using GBZ as frequency reference on the netbook. Will leave it running until next year.. Thanks and GL, Wolf . Am 31.12.2013 13:07, schrieb uwe-jannsen@kabelmail.de: > > Hi Peter, Graham and Markus, > > when Im really dreaming the Fade becomes zero. Pse see: > > http://dj8wx-dl.de/opera5.jpg > > the TX is still on the air. Pse try your best, > > GL and hny > > Uwe/dj8wx > > > ------------------------------------------------------------------------ > Von: rsgb_lf_group@blacksheep.org > Gesendet: 31.12.2013 11:43 > An: rsgb_lf_group@blacksheep.org > Betreff: Re: VLF: Uwe Opera-4H > ------------------------------------------------------------------------ > > Unfortunately no copy from Uwe, here in JO42FD using the broadband VLF > E-field receiver at DF0WD and 0.5 mHz FFT bin width.. > > Hny and cul, > Wolf. > > Am 31.12.2013 10:18, schrieb PA1SDB, Peter: >> Uwe, >> This message (below) came in my mail box at 08:42 UTC today (31-Dec-13) >> 73's Peter.. >> ----- Original Message ----- >> >> *From:* uwe-jannsen@kabelmail.de >> *To:* rsgb_lf_group@blacksheep.org >> >> *Sent:* Monday, December 30, 2013 2:46 PM >> *Subject:* Re: Re: VLF: Uwe Opera-4H >> >> HI Peter, >> >> I changed the TX QRG to 8912.5Hz running SpecLab in Op-4H (ASK0) >> mode and made a first test with positive result. >> >> the RX was located in 3km distance - Opera v.1.5.0 , RX aerial a >> 10m wire connected to the soundcard. >> >> TX output pwr about 1W. pse see: >> >> http://dj8wx-dl.de/opera3.jpg >> >> I think we should have a try as you are my nearest station rxing >> VLF. >> >> Now Im increasing the PA output pwr to 500Wrms. >> >> GL >> >> Uwe/dj8wx >> >> >> ------------------------------------------------------------------------ >> Von: rsgb_lf_group@blacksheep.org >> Gesendet: 29.12.2013 09:45 >> An: rsgb_lf_group@blacksheep.org >> Betreff: Re: VLF: Uwe Opera-4H >> ------------------------------------------------------------------------ >> >> Hello Uwe, Markus, VLF >> Nothing was seen or detected here from your transmission in OPERA >> mode either.. >> No recognizable trace at all. >> While you're continuous unmodulated signal almost overloads my >> soundcard input. >> 73's Peter - PA1SDB >> >> ----- Original Message ----- >> *From:* uwe-jannsen@kabelmail.de >> >> *To:* rsgb_lf_group@blacksheep.org >> >> *Sent:* Saturday, December 28, 2013 9:08 PM >> *Subject:* Re: VLF: Uwe Opera-4H >> >> >> yes Markus, I have had the screen showing the SecLab >> components in my focus whilst doing other jobs - for hours. >> >> Now the carrier only mode is on the air. >> >> Until next test >> >> GL >> >> Uwe/dj8wx >> >> >> ------------------------------------------------------------------------ >> Von: rsgb_lf_group@blacksheep.org >> >> Gesendet: 28.12.2013 19:07 >> An: rsgb_lf_group@blacksheep.org >> >> Betreff: VLF: Uwe Opera-4H >> ------------------------------------------------------------------------ >> >> Uwe, >> sorry, nothing was seen or detected here from your >> transmission today. Not a trace. Der erste Versuch ist meist >> nicht genuch (Didi Drahtlos). >> Yes I noticed the good trace on Paul Nicholson's spectrogram >> http://abelian.org/vlf/fbins.shtml#p=1388246400&b=080&s=sp. >> Just look at it the other way round: You did send a long >> carrier, only with some short interruptions. But the gaps >> were so short that the spectrum didn't notice them ;-) >> More seriously: Compared to a continuous carrier, with 50% >> duty cycle the carrier component is still there but 6 db down >> (half average voltage). In terms of power, on average you are >> spending 50% of the power. 25% (-6 dB) goes to the central >> carrier, and the other 25% into the AM sidebands carrying the >> message. >> What I find strange is that the spectrogram trace seems to >> have jumped 28 mHz low, once near the beginning and again for >> an hour around 14:30. Are you sure that your samplerate >> correction had been engaged without interruption? >> Best 73, >> Markus (DF6NM) >> >> *From:* uwe-jannsen@kabelmail.de >> >> *Sent:* Saturday, December 28, 2013 3:05 PM >> *To:* rsgb_lf_group@blacksheep.org >> >> *Subject:* Re: Re: LF: Sending Opera with SpecLab >> >> OK., Markus, but the Todmorden grabber shows the signs.its a >> surprise for me. I didnt expect it samples such relative >> short signs. >> GL >> Uwe/dj8wx >> tks for the correction. >> ------------------------------------------------------------------------ >> Von: rsgb_lf_group@blacksheep.org >> >> Gesendet: 28.12.2013 12:47 >> An: rsgb_lf_group@blacksheep.org >> >> Betreff: Re: LF: Sending Opera with SpecLab >> ------------------------------------------------------------------------ >> >> Uwe, >> good news! I'm watching and searching ;-) >> Background noise seems to be a few dB higher than the last >> couple of days, but we'll see what's possible anyway. >> Unfortunately the OK2BVG grabber website appears to be down >> at the moment. >> Good luck! >> 73, Markus (DF6NM) >> PS: In my original mail, the Op-8 line in the speed >> table erroneously contained an entry for Op-4. This has been >> corrected beneath. >> >> *From:* uwe-jannsen@kabelmail.de >> >> *Sent:* Saturday, December 28, 2013 12:14 PM >> *To:* rsgb_lf_group@blacksheep.org >> >> *Subject:* LF: Sending Opera with SpecLab >> >> Hi all, >> the PA has been switched on. the next txt block will start now. >> GL >> Uwe/dj8wx >> ------------------------------------------------------------------------ >> Von: rsgb_lf_group@blacksheep.org >> >> Gesendet: 27.12.2013 15:47 >> An: rsgb_lf_group@blacksheep.org >> >> Betreff: Re: Re: LF: Sending Opera with SpecLab >> ------------------------------------------------------------------------ >> >> Hi Markus, Wolf, Stefan, Peter es all, >> >> tks for the advice, Markus >> >> now SpecLab is beaconing in mode Op-4H on 8969.99Hz >> >> the PA is off until it is dry outside. >> >> I keep your proposal txing btwn 0700 and 1400MEZ in mind, >> Markus. >> >> GL >> >> Uwe/dj8wx/dj8CAT >> > --------------040302000503010104040403 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: 8bit
Hello Uwe,

At least, the dominant peak in the 'long-term' average spectrum (collected between last midnight and this morning) was right on spot, precisely on your frequency. I was using GBZ as frequency reference on the netbook.
Will leave it running until next year..

Thanks and GL,
  Wolf .

Am 31.12.2013 13:07, schrieb uwe-jannsen@kabelmail.de:

Hi Peter, Graham and Markus,

when Im really dreaming the Fade becomes zero. Pse see:

http://dj8wx-dl.de/opera5.jpg

the TX is still on the air.  Pse try your best,

GL and hny

Uwe/dj8wx


Von: rsgb_lf_group@blacksheep.org
Gesendet: 31.12.2013 11:43
An: rsgb_lf_group@blacksheep.org
Betreff: Re: VLF: Uwe Opera-4H

Unfortunately no copy from Uwe, here in JO42FD using the broadband VLF E-field receiver at DF0WD and 0.5 mHz FFT bin width..

Hny and cul,
  Wolf.

Am 31.12.2013 10:18, schrieb PA1SDB, Peter:
Uwe,
This message (below) came in my mail box at 08:42 UTC today (31-Dec-13)
 
73's Peter..
 
 
 
 
----- Original Message -----
Sent: Monday, December 30, 2013 2:46 PM
Subject: Re: Re: VLF: Uwe Opera-4H

HI Peter,

I changed the TX QRG to 8912.5Hz running SpecLab in Op-4H (ASK0) mode and made a first test with positive result.

the RX was located in 3km distance - Opera v.1.5.0 , RX aerial a 10m wire connected to the soundcard.   

TX output pwr about 1W.  pse see:

http://dj8wx-dl.de/opera3.jpg

I think we should have a try as you are my nearest station rxing VLF.

Now Im increasing the PA output pwr to 500Wrms.

GL

Uwe/dj8wx  


Von: rsgb_lf_group@blacksheep.org
Gesendet: 29.12.2013 09:45
An: rsgb_lf_group@blacksheep.org
Betreff: Re: VLF: Uwe Opera-4H

Hello Uwe, Markus, VLF
 
Nothing was seen or detected here from your transmission in OPERA mode either..
No recognizable trace at all.
While you're continuous unmodulated signal almost overloads my soundcard input.
 
73's Peter - PA1SDB
 
 
 
----- Original Message -----
Sent: Saturday, December 28, 2013 9:08 PM
Subject: Re: VLF: Uwe Opera-4H


yes Markus, I have had the screen showing the SecLab components in my focus whilst doing  other jobs - for hours.

Now the carrier only mode is on the air.

Until next test

GL

Uwe/dj8wx


Von: rsgb_lf_group@blacksheep.org
Gesendet: 28.12.2013 19:07
An: rsgb_lf_group@blacksheep.org
Betreff: VLF: Uwe Opera-4H

Uwe,
 
sorry, nothing was seen or detected here from your transmission today. Not a trace. Der erste Versuch ist meist nicht genuch (Didi Drahtlos). 
 
Yes I noticed the good trace on Paul Nicholson's spectrogram http://abelian.org/vlf/fbins.shtml#p=1388246400&b=080&s=sp. Just look at it the other way round: You did send a long carrier, only with some short interruptions. But the gaps were so short that the spectrum didn't notice them ;-) 
 
More seriously: Compared to a continuous carrier, with 50% duty cycle the carrier component is still there but 6 db down (half average voltage). In terms of power, on average you are spending 50% of the power. 25% (-6 dB) goes to the central carrier, and the other 25% into the AM sidebands carrying the message.    
 
What I find strange is that the spectrogram trace seems to have jumped 28 mHz low, once near the beginning and again for an hour around 14:30. Are you sure that your samplerate correction had been engaged without interruption?
 
Best 73,
Markus (DF6NM)
 

Sent: Saturday, December 28, 2013 3:05 PM
Subject: Re: Re: LF: Sending Opera with SpecLab

OK., Markus, but the Todmorden grabber shows the signs.its a surprise for me. I didnt expect it samples such relative short signs.
GL
Uwe/dj8wx
tks for the correction.
Von: rsgb_lf_group@blacksheep.org
Gesendet: 28.12.2013 12:47
An: rsgb_lf_group@blacksheep.org
Betreff: Re: LF: Sending Opera with SpecLab

Uwe,
 
good news! I'm watching and searching ;-) 
 
Background noise seems to be a few dB higher than the last couple of days, but we'll see what's possible anyway. Unfortunately the OK2BVG grabber website appears to be down at the moment.
 
Good luck!
 
73, Markus (DF6NM)
 
PS: In my original mail, the Op-8 line in the speed table erroneously contained an entry for Op-4. This has been corrected beneath.  
 

Sent: Saturday, December 28, 2013 12:14 PM
Subject: LF: Sending Opera with SpecLab

Hi all,
the PA has been switched on. the next txt block will start now.
GL
Uwe/dj8wx
Von: rsgb_lf_group@blacksheep.org
Gesendet: 27.12.2013 15:47
An: rsgb_lf_group@blacksheep.org
Betreff: Re: Re: LF: Sending Opera with SpecLab

Hi Markus, Wolf, Stefan, Peter es all,

tks for the advice, Markus

now SpecLab is beaconing in mode Op-4H on 8969.99Hz

the PA is off until it is dry outside.

I keep your proposal  txing btwn 0700 and 1400MEZ in mind, Markus.

GL

Uwe/dj8wx/dj8CAT

 



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