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[195.171.43.25]) by mx.google.com with ESMTP id ep5si18062815wib.10.2013.12.30.17.54.05 for ; Mon, 30 Dec 2013 17:54:06 -0800 (PST) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Vxnbc-0006pC-Os for rs_out_1@blacksheep.org; Tue, 31 Dec 2013 00:54:48 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Vxnbb-0006p3-U5 for rsgb_lf_group@blacksheep.org; Tue, 31 Dec 2013 00:54:47 +0000 Received: from smtpout2.wanadoo.co.uk ([80.12.242.42] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1VxnbY-0000N3-7D for rsgb_lf_group@blacksheep.org; Tue, 31 Dec 2013 00:54:46 +0000 Received: from AGB ([95.145.227.206]) by mwinf5d18 with ME id 80ui1n0014TpYKj030uivp; Tue, 31 Dec 2013 01:54:43 +0100 Message-ID: From: "Graham" To: References: In-Reply-To: Date: Tue, 31 Dec 2013 00:54:41 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 X-Spam-Score: 1.6 (+) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. 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: Ok Uwe That would explain the gaps in the decode ! G, [...] Content analysis details: (1.6 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [80.12.242.42 listed in list.dnswl.org] 0.0 HTML_MESSAGE BODY: HTML included in message 1.6 FR_ALMOST_VIAG2 RAW: Almost looks like viagra. X-Scan-Signature: 6161e1d0506f5822c193f99ea1b65676 Subject: Re: Re: Re: VLF: Uwe Opera-4H Content-Type: multipart/alternative; boundary="----=_NextPart_000_00BB_01CF05C2.E3B2E4A0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_40_50,HTML_MESSAGE, MISSING_OUTLOOK_NAME 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: 3483 This is a multi-part message in MIME format. ------=_NextPart_000_00BB_01CF05C2.E3B2E4A0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Ok Uwe That would explain the gaps in the decode ! G, From: uwe-jannsen@kabelmail.de=20 Sent: Monday, December 30, 2013 10:35 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: Re: Re: VLF: Uwe Opera-4H Hi Peter and Graham, the TX is still on the air.the next esquenz will start at abt 2350utc.=20 Im playing around on the RX side and I did so during the test. may be = that=92s the reason for the anomalies in the RX window of Opera. Pse = see: http://dj8wx-dl.de/opera4a.jpg SpecLab works fine here.=20 GL Uwe/dj8wx -------------------------------------------------------------------------= ------- Von: rsgb_lf_group@blacksheep.org Gesendet: 30.12.2013 22:00 An: rsgb_lf_group@blacksheep.org Betreff: Re: Re: VLF: Uwe Opera-4H -------------------------------------------------------------------------= ------- When stops/starts the old/new cycle Uwe ? ----- Original Message -----=20 From: PA1SDB, Peter=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Monday, December 30, 2013 5:50 PM Subject: Re: Re: VLF: Uwe Opera-4H Somehow I did not got your mail Uwe, Now I read this via Graham... A Local test (2 PC's few meter appart) with OPERA 8 KHz did fail. No decode's. I think that VLF PC was to busy with 4 SL's running on that PC to. Just few minutes ago (17h45) I did configure a OPERA only PC at 8 KHz. Lets try to make that first DL - PA on 8KHz :-) 73's Peter - PA1SDB ----- Original Message -----=20 From: Graham=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Monday, December 30, 2013 3:01 PM Subject: Re: Re: VLF: Uwe Opera-4H Uwe =20 Well that's the first past the garden gate ! unless the = drive is 3Kmt long hihi Fade shows 32 % ? that's only 2/3 of the tx time line , = was the Tx stopped ?=20 still at -2 dB s/n thats still ~ +48 dB qro ! 73-G,=20 From: uwe-jannsen@kabelmail.de=20 Sent: Monday, December 30, 2013 2:46 PM To: rsgb_lf_group@blacksheep.org=20 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.=20 the RX was located in 3km distance - Opera v.1.5.0 , RX aerial a 10m = wire connected to the soundcard. =20 TX output pwr about 1W. pse see: http://dj8wx-dl.de/opera3.jpg=20 I think we should have a try as you are my nearest station rxing = VLF.=20 Now Im increasing the PA output pwr to 500Wrms.=20 GL=20 Uwe/dj8wx =20 -------------------------------------------------------------------------= --- 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 -----=20 From: uwe-jannsen@kabelmail.de=20 To: rsgb_lf_group@blacksheep.org=20 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.=20 Until next test=20 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).=20 Yes I noticed the good trace on Paul Nicholson's spectrogram = http://abelian.org/vlf/fbins.shtml#p=3D1388246400&b=3D080&s=3Dsp. 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 ;-)=20 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. =20 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=20 Sent: Saturday, December 28, 2013 3:05 PM To: rsgb_lf_group@blacksheep.org=20 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 ;-)=20 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. =20 From: uwe-jannsen@kabelmail.de=20 Sent: Saturday, December 28, 2013 12:14 PM To: rsgb_lf_group@blacksheep.org=20 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=20 now SpecLab is beaconing in mode Op-4H on 8969.99Hz the PA is off until it is dry outside.=20 I keep your proposal txing btwn 0700 and 1400MEZ in mind, Markus. GL=20 Uwe/dj8wx/dj8CAT ------=_NextPart_000_00BB_01CF05C2.E3B2E4A0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Ok Uwe
 
That  would  explain the  gaps  in the =20 decode  !
 
G,

Sent: Monday, December 30, 2013 10:35 PM
Subject: Re: Re: Re: VLF: Uwe Opera-4H

Hi Peter and Graham,

the TX is still on the air.the next = esquenz=20 will start at abt 2350utc.=20

Im playing around on the RX side and I did so during the test. = may be=20 that=92s the reason for the anomalies in the RX window of Opera. Pse=20 see:

 http://dj8wx-dl.de/opera4a.jpg

SpecLab works fine here.

 

GL

Uwe/dj8wx


Von: rsgb_lf_group@blacksheep.org=
Gesendet:=20 30.12.2013 22:00
An: rsgb_lf_group@blacksheep.org=
Betreff:=20 Re: Re: VLF: Uwe Opera-4H

When stops/starts the old/new = cycle Uwe=20 ?
 
 
----- Original Message -----
From: PA1SDB, = Peter
To: rsgb_lf_group@blacksheep.org= =20
Sent: Monday, = December 30, 2013=20 5:50 PM
Subject: Re: Re: VLF: = Uwe=20 Opera-4H

Somehow I did not got your = mail=20 Uwe,
Now I read this via=20 Graham...
 
A Local test (2 PC's few = meter appart)=20 with OPERA 8 KHz did fail.
No decode's.
I think that VLF PC was to = busy with 4=20 SL's running on that PC to.
 
Just few minutes ago (17h45) = I did=20 configure a OPERA only PC at 8 KHz.
Lets try to make that first = DL - PA on=20 8KHz :-)
 
73's Peter - = PA1SDB
 
 
----- Original Message -----
From: Graham
To: rsgb_lf_group@blacksheep.org= =20
Sent: Monday, = December 30,=20 2013 3:01 PM
Subject: Re: Re: = VLF: Uwe=20 Opera-4H

Uwe 
 
Well  that's  the  first  past =  the =20 garden gate  ! unless  the  drive  = is  =20 3Kmt   long hihi
 
Fade  shows   32 %  ? that's  =20 only  2/3    of the  tx  time = line=20  , was the  Tx stopped  ?
 
still at  -2 dB s/n  thats still  ~  +48 dB = qro  !
 
73-G,
 

From: uwe-jannsen@kabelmail.de =
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=20 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=20 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=20 station rxing VLF.

Now Im increasing the PA output pwr to = 500Wrms.=20

GL

Uwe/dj8wx  


Von: rsgb_lf_group@blacksheep.org
Gesendet: 29.12.2013 = 09:45
An:=20 rsgb_lf_group@blacksheep.org
Betreff: Re: VLF: Uwe Opera-4H

Hello Uwe, Markus, = VLF
 
Nothing was seen or = detected here=20 from your transmission in OPERA mode either.
No recognizable trace = at=20 all.
While = you're continuous=20 unmodulated signal almost overloads my soundcard input.
 
73's Peter - = PA1SDB
 
 
 
----- Original Message ----- =
To: rsgb_lf_group@blacksheep.org= =20
Sent: Saturday, = December=20 28, 2013 9:08 PM
Subject: Re: VLF: = Uwe=20 Opera-4H


yes Markus, I have had the screen showing the SecLab=20 components in my focus whilst doing  other jobs - for=20 hours.

Now the carrier only mode is on the = air.

Until next test

GL

Uwe/dj8wx


Von: rsgb_lf_group@blacksheep.org=
Gesendet:=20 28.12.2013 19:07
An: rsgb_lf_group@blacksheep.org=
Betreff:=20 VLF: Uwe Opera-4H

Uwe,
 
sorry, = nothing was=20 seen or detected here from your transmission today. Not a = trace.=20 Der erste = Versuch ist=20 meist nicht genuch (Didi Drahtlos). 
 
Yes I = noticed the=20 good trace on Paul Nicholson's spectrogram http://abelian.org/vlf/fbins.shtml#p=3D1388246400&b=3D080&am= p;s=3Dsp.=20 Just = look at it=20 the other way round: You did send a long carrier, only with some = short=20 interruptions. But the gaps were so short that the spectrum = didn't=20 notice them ;-) 
 
More = seriously:=20 Compared to a=20 continuous carrier, with 50% duty cycle = the carrier=20 component is still there but 6 db down (half average voltage). In = terms of=20 power, on average you are spending 50% of the = power. 25% (-6 dB)=20 goes to the central carrier, and the other 25% into the AM = sidebands=20 carrying the message.    
 
What I=20 find strange is that the spectrogram trace seems to = have=20 jumped 28 mHz low, once near the beginning and = again for an=20 hour around 14:30. Are you sure that your samplerate = correction=20 had been engaged without interruption?
 
Best=20 73,
Markus=20 (DF6NM)
 

From: uwe-jannsen@kabelmail.de =
Sent: Saturday, December 28, 2013 3:05 = PM
To: rsgb_lf_group@blacksheep.org= =20
Subject: Re: Re: LF: Sending Opera with=20 SpecLab

OK.,=20 Markus, but the Todmorden grabber shows the signs.its a surprise = for me. I=20 didnt expect it samples such relative short=20 signs.
GL
Uwe/dj8wx
tks for the correction.
Von: rsgb_lf_group@blacksheep.org=
Gesendet:=20 28.12.2013 12:47
An: rsgb_lf_group@blacksheep.org=
Betreff:=20 Re: LF: Sending Opera with SpecLab

Uwe,
 
good news! I'm=20 watching and searching ;-) 
 
Background noise=20 seems to be a few dB higher than the last couple of days, but = we'll=20 see what's possible anyway. Unfortunately the = OK2BVG=20 grabber website appears to be down at the moment.
 
Good=20 luck!
 
73, = Markus=20 (DF6NM)
 
PS: In my = original=20 mail, the Op-8 line in the speed table erroneously = contained=20 an entry for Op-4. This has been corrected=20 beneath.  
 

From: uwe-jannsen@kabelmail.de =
Sent: Saturday, December 28, 2013 12:14 = PM
To: rsgb_lf_group@blacksheep.org= =20
Subject: LF: Sending Opera with=20 SpecLab

Hi=20 all,
the PA has been switched on. the next txt block will start = now.
GL
Uwe/dj8wx
Von: rsgb_lf_group@blacksheep.org=
Gesendet:=20 27.12.2013 15:47
An: rsgb_lf_group@blacksheep.org=
Betreff:=20 Re: Re: LF: Sending Opera with SpecLab

Hi Markus, Wolf, Stefan, Peter es all,

tks for the=20 advice, Markus

now SpecLab is beaconing in mode Op-4H on=20 8969.99Hz

the PA is off until it is dry outside.

I keep your proposal  txing btwn 0700 and 1400MEZ in = mind,=20 Markus.

GL

Uwe/dj8wx/dj8CAT

=

 

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