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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: Hi Peter and Graham, the TX is still on the air.the next esquenz will start at abt 2350utc. Im playing around on the RX side and I did so during the test. may be thatÂ’s the reason for the anomalies in the RX window of Opera. Pse see: [...] Content analysis details: (0.9 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [194.25.41.13 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 1.6 FR_ALMOST_VIAG2 RAW: Almost looks like viagra. 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 42c8024a215fc3bf7dc50c67f53340bb Subject: Re: Re: Re: VLF: Uwe Opera-4H Content-Type: multipart/alternative; boundary="----872334D4FC444DEEB5D67B338D39C687" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.6 required=5.0 tests=HTML_40_50,HTML_MESSAGE, NO_REAL_NAME,PRIORITY_NO_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: 3481 ------872334D4FC444DEEB5D67B338D39C687 Content-type: text/plain; charset=Windows-1252 Content-Transfer-Encoding: quoted-printable Hi Peter and Graham, the TX is still on the air=2Ethe next esquenz will= start at abt 2350utc=2E=20 Im playing around on the RX side and I did so during the test=2E may be= that=92s the reason for the anomalies in the RX window of Opera=2E Pse= see:=20 =A0http://dj8wx-dl=2Ede/opera4a=2Ejpg=20 SpecLab works fine here=2E =20 GL=20 Uwe/dj8wx=20 Von: rsgb_lf_group@blacksheep=2Eorg Gesendet: 30=2E12=2E2013 22:00 An: rsgb_lf_group@blacksheep=2Eorg Betreff: Re: Re: VLF: Uwe Opera-4H When stops/starts the old/new cycle Uwe ?=20 ----- Original Message ----- =20 From: PA1SDB, Peter =20 To: rsgb_lf_group@blacksheep=2Eorg =20 Sent: Monday, December 30, 2013 5:50 PM=20 Subject: Re: Re: VLF: Uwe Opera-4H=20 Somehow I did not got your mail Uwe,=20 Now I read this via Graham=2E=2E=2E=20 A Local test (2 PC's few meter appart) with OPERA 8 KHz did fail=2E=20 No decode's=2E=20 I think that VLF PC was to busy with 4 SL's running on that PC to=2E=20 Just few minutes ago (17h45) I did configure a=A0OPERA only=A0PC at 8 K= Hz=2E=20 Lets try to make that first DL - PA on 8KHz :-)=20 73's Peter - PA1SDB=20 ----- Original Message ----- =20 From: Graham =20 To: rsgb_lf_group@blacksheep=2Eorg =20 Sent: Monday, December 30, 2013 3:01 PM=20 Subject: Re: Re: VLF: Uwe Opera-4H=20 Uwe=A0 =20 Well=A0 that's=A0 the=A0 first=A0 past =A0the=A0 garden gate=A0 ! unles= s=A0 the=A0 drive=A0 is=A0=A0 3Kmt=A0=A0 long hihi=20 Fade=A0 shows=A0=A0 32 %=A0 ? that's=A0=A0 only=A0=A02/3=A0=A0 =A0of th= e=A0 tx=A0 time line =A0, was the=A0 Tx stopped=A0 ? =20 still at=A0 -2 dB s/n=A0 thats still =A0~=A0 +48 dB qro=A0 !=20 73-G, =20 From: uwe-jannsen@kabelmail=2Ede =20 Sent: Monday, December 30, 2013 2:46 PM=20 To: rsgb_lf_group@blacksheep=2Eorg =20 Subject: Re: Re: VLF: Uwe Opera-4H =20 HI Peter,=20 I changed the TX QRG to 8912=2E5Hz running SpecLab in Op-4H (ASK0) mode= and made a first test with positive result=2E =20 the RX was located in 3km distance - Opera v=2E1=2E5=2E0 , RX aerial a = 10m wire connected to the soundcard=2E =A0=A0=20 TX output pwr about 1W=2E =A0pse see:=20 http://dj8wx-dl=2Ede/opera3=2Ejpg =20 I think we should have a try as you are my nearest station rxing VLF=2E= =20 Now Im increasing the PA output pwr to 500Wrms=2E =20 GL =20 Uwe/dj8wx =A0=20 Von: rsgb_lf_group@blacksheep=2Eorg Gesendet: 29=2E12=2E2013 09:45 An: rsgb_lf_group@blacksheep=2Eorg Betreff: Re: VLF: Uwe Opera-4H Hello Uwe, Markus, VLF=20 Nothing was seen or detected here from your transmission in=A0OPERA mod= e either=2E=20 No recognizable=A0trace at all=2E=20 While you're=A0continuous unmodulated signal almost overloads my soundc= ard input=2E=20 73's Peter - PA1SDB=20 ----- Original Message ----- =20 From: uwe-jannsen@kabelmail=2Ede =20 To: rsgb_lf_group@blacksheep=2Eorg =20 Sent: Saturday, December 28, 2013 9:08 PM=20 Subject: Re: VLF: Uwe Opera-4H=20 yes Markus, I have had the screen showing the SecLab components in my = focus whilst doing =A0other jobs - for hours=2E=20 Now the carrier only mode is on the air=2E =20 Until next test =20 GL=20 Uwe/dj8wx=20 Von: rsgb_lf_group@blacksheep=2Eorg Gesendet: 28=2E12=2E2013 19:07 An: rsgb_lf_group@blacksheep=2Eorg Betreff: VLF: Uwe Opera-4H Uwe,=20 sorry, nothing was seen or detected here from your transmission today=2E= =A0Not a trace=2E Der erste Versuch ist meist nicht genuch=A0(Didi Drah= tlos)=2E=A0=20 Yes I noticed the good trace on Paul Nicholson's spectrogram http://abe= lian=2Eorg/vlf/fbins=2Eshtml#p=3D1388246400&b=3D080&s=3Dsp=2E Just look= at it the other way round: You did send a long carrier, only with some= short interruptions=2E=A0But the gaps were so short that the spectrum = didn't notice them ;-)=A0=20 More seriously: Compared to a continuous carrier, with 50% duty cycle t= he carrier component is still there but 6 db down (half average voltage= )=2E In terms of power, on average you are spending 50% of the power=2E= =A025%=A0(-6 dB) goes to=A0the central carrier, and the other 25% into = the AM sidebands carrying the message=2E=A0=A0=A0=A0=20 What I find=A0strange is that=A0the spectrogram trace=A0seems to have j= umped=A028 mHz low,=A0once near=A0the beginning and again for an hour a= round 14:30=2E=A0Are you sure that your samplerate correction had=A0bee= n engaged without interruption?=20 Best 73,=20 Markus (DF6NM)=20 From: uwe-jannsen@kabelmail=2Ede =20 Sent: Saturday, December 28, 2013 3:05 PM=20 To: rsgb_lf_group@blacksheep=2Eorg =20 Subject: Re: Re: LF: Sending Opera with SpecLab =20 OK=2E, Markus, but the Todmorden grabber shows the signs=2Eits a surpri= se for me=2E I didnt expect it samples such relative short signs=2E GL Uwe/dj8wx tks for the correction=2E Von: rsgb_lf_group@blacksheep=2Eorg Gesendet: 28=2E12=2E2013 12:47 An: rsgb_lf_group@blacksheep=2Eorg Betreff: Re: LF: Sending Opera with SpecLab Uwe,=20 good=A0news! I'm watching and searching=A0;-)=A0=20 Background noise seems to be a few dB higher than=A0the last couple of = days, but we'll see what's possible anyway=2E Unfortunately the OK2BVG = grabber website appears to be down at the moment=2E=20 Good luck!=20 73, Markus (DF6NM)=20 PS: In my original mail, the Op-8 line=A0in the speed table=A0erroneous= ly contained an=A0entry for Op-4=2E This=A0has been corrected beneath=2E= =A0=A0=20 From: uwe-jannsen@kabelmail=2Ede =20 Sent: Saturday, December 28, 2013 12:14 PM=20 To: rsgb_lf_group@blacksheep=2Eorg =20 Subject: LF: Sending Opera with SpecLab =20 Hi all, the PA has been switched on=2E the next txt block will start now=2E GL Uwe/dj8wx Von: rsgb_lf_group@blacksheep=2Eorg Gesendet: 27=2E12=2E2013 15:47 An: rsgb_lf_group@blacksheep=2Eorg 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=2E99Hz the PA is off until it is dry outside=2E =20 I keep your proposal =A0txing btwn 0700 and 1400MEZ in mind, Markus=2E=20 GL =20 Uwe/dj8wx/dj8CAT ------872334D4FC444DEEB5D67B338D39C687 Content-type: text/html; charset=Windows-1252 Content-Transfer-Encoding: quoted-printable

Hi Peter and Graham,

the TX is still on the air=2Ethe next esquenz will start at abt 2= 350utc=2E

Im playing around on the RX side and I did so during the test=2E= may be that’s the reason for the anomalies in the RX window of O= pera=2E Pse see:

 http://dj= 8wx-dl=2Ede/opera4a=2Ejpg

SpecLab works fine here=2E

 

GL

Uwe/dj8wx


Von: rsgb_lf_group@blacksheep=2Eorg
Gesendet: 30=2E12=2E2013 22:00
An: rsgb_lf_group@blacksheep=2Eorg
Betreff: Re: Re: VLF: Uwe Opera-4H

When stops/starts the old/ne= w cycle Uwe ?
 
 
----- Original Message -----
Sent: Monday, Decembe= r 30, 2013 5:50 PM
Subject: Re: Re: VLF:= Uwe Opera-4H

Somehow I did not got your m= ail Uwe,
Now I read this via Graham=2E= =2E=2E
 
A Local test (2 PC's few met= er appart) with OPERA 8 KHz did fail=2E
No decode's=2E
I think that VLF PC was to b= usy with 4 SL's running on that PC to=2E
 
Just few minutes ago (17h45)= I did configure a OPERA only PC at 8 KHz=2E
Lets try to make that first = DL - PA on 8KHz :-)
 
73's Peter - PA1SDB
 
 
----- Original Message -----
From: Graham
Sent: Monday, Decembe= r 30, 2013 3:01 PM
Subject: Re: Re: VLF:= Uwe Opera-4H

Uwe 
 
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  ?
 
still at  -2 dB s/n  thats still  ~  +48 dB qro  !
 
73-G,
 

Sent: Monday, December 30, 2013 2:46 PM
Subject: Re: Re: VLF: Uwe Opera-4H

HI Peter,

I changed the TX QRG to 8912=2E5Hz running SpecLa= b in Op-4H (ASK0) mode and made a first test with positive result=2E =

the RX was located in 3km distance - Opera v=2E1=2E5=2E0 , RX = aerial a 10m wire connected to the soundcard=2E   

TX output pwr about 1W=2E  pse see:

http://dj8wx-dl=2E= de/opera3=2Ejpg

I think we should have a try as you are my neares= t station rxing VLF=2E

Now Im increasing the PA output pwr to 500Wrms=2E

GL

Uwe/dj8wx  


Von: rsgb_lf_group@blacksheep=2Eorg
Gesendet: 29=2E12=2E2013 09:45
An: rsgb_lf_group@blacksheep=2Eorg
Betreff: Re: VLF: Uwe Opera-4H

Hello Uwe, Markus, VLF
 
Nothing was seen or detected= here from your transmission in OPERA mode either=2E
No recognizable trace a= t all=2E
While you're continuous unmodulated signal almost overloads my soundcard input=2E
 
73's Peter - PA1SDB
 
 
 
----- Original Message -----
Sent: Saturday, Decem= ber 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=2E

Now the carrier only mode is on the air=2E=

Until next test

GL

Uwe/dj8wx


Von: rsgb_lf_group@bl= acksheep=2Eorg
Gesendet: 28=2E12=2E2013 19:07
An: rsgb_lf_group@bla= cksheep=2Eorg
Betreff: VLF: Uwe Opera-4H

Uwe,
 =
sorry, nothin= g was seen or detected here from your transmission today=2E Not a trace=2E Der erste Versuch = ist meist nicht genuch (Didi Drahtlos)=2E 
 =
Yes I noticed= the good trace on Paul Nicholson's spectrogram http://abelian=2Eorg/vlf= /fbins=2Eshtml#p=3D1388246400&b=3D080&s=3Dsp=2E Just look a= t it the other way round: You did send a long carrier, only with some short interruptions=2E But the gaps were so short that the spectrum didn= 't notice them ;-) 
 =
More seriousl= y: Compared to= a continuous carrier, with 50% duty cycle the carrier component is still there but 6 db down (half average voltage)=2E In ter= ms of power, on average you are spending 50% of the power=2E 25% (-= 6 dB) goes to the central carrier, and the other 25% into the AM sideban= ds carrying the message=2E    
 =
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=2E 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=2E, Markus, but the Todmorden grabber shows the signs=2Eits a surprise for = me=2E I didnt expect it samples such relative short signs=2E
GL
Uwe/dj8wx
tks for the correction=2E
Von: rsgb_lf_group@bl= acksheep=2Eorg
Gesendet: 28=2E12=2E2013 12:47
An: rsgb_lf_group@bla= cksheep=2Eorg
Betreff: Re: LF: Sending Opera with SpecLab

Uwe,
 =
good new= s! I'm watching and searching ;-) 
 =
Background no= ise seems to be a few dB higher than the last couple of days, but we'l= l see what's possible anyway=2E Unfortunately the OK2BVG grabber website appears to be down at the moment=2E
 =
Good luck!
 =
73, Markus (DF6NM)
 =
PS: In my ori= ginal mail, the Op-8 line in the speed table erroneously contained an entry for Op-4=2E This has been corrected beneath=2E  
 =
=
Sent: Saturday, December 28, 2013 12:14 PM
Subject: LF: Sending Opera with SpecLab

Hi all,
the PA has been switched on=2E the next txt block will start now=2E
GL
Uwe/dj8wx
Von: rsgb_lf_group@bl= acksheep=2Eorg
Gesendet: 27=2E12=2E2013 15:47
An: rsgb_lf_group@bla= cksheep=2Eorg
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=2E99Hz

the PA is off until it is dry outside=2E

I keep your proposal  txing btwn 0700 and 1400MEZ in mind= , Markus=2E

GL

Uwe/dj8wx/dj8CAT

 

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