Return-Path: Received: from mtain-dj02.r1000.mx.aol.com (mtain-dj02.r1000.mail.aol.com [172.19.187.138]) by air-da08.mail.aol.com (v128.3) with ESMTP id MAILINDA082-86184bd491821d1; Sun, 25 Apr 2010 15:01:23 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-dj02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 31C9F380000AA; Sun, 25 Apr 2010 15:01:21 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1O673c-0002BF-Od for rs_out_1@blacksheep.org; Sun, 25 Apr 2010 19:59:56 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1O673b-0002Ab-GN for rsgb_lf_group@blacksheep.org; Sun, 25 Apr 2010 19:59:55 +0100 Received: from blu0-omc1-s38.blu0.hotmail.com ([65.55.116.49]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1O673X-0003Dr-8e for rsgb_lf_group@blacksheep.org; Sun, 25 Apr 2010 19:59:55 +0100 Received: from BLU146-W18 ([65.55.116.9]) by blu0-omc1-s38.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.3959); Sun, 25 Apr 2010 11:59:43 -0700 Message-ID: X-Originating-IP: [72.24.197.34] From: Laurence KL1X To: Date: Sun, 25 Apr 2010 10:59:43 -0800 Importance: Normal In-Reply-To: <42A53053CDC04DBF912E5A4DD65A1231@Black> References: <20100422.124305.268.3.riese-k3djc@juno.com> ,<42A53053CDC04DBF912E5A4DD65A1231@Black> MIME-Version: 1.0 X-OriginalArrivalTime: 25 Apr 2010 18:59:43.0800 (UTC) FILETIME=[77714B80:01CAE4A9] X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Content-Type: multipart/alternative; boundary="_b5071e26-d4f5-4c42-bee4-715c7501163f_" Subject: RE: LF: vlf stuff X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=FORGED_HOTMAIL_RCVD,HTML_30_40, 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 x-aol-global-disposition: G x-aol-sid: 3039cdbc9d064bd491813938 X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) --_b5071e26-d4f5-4c42-bee4-715c7501163f_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks Markus -Ive been concentrating on rx soundcard calibration and dont= have (within my sound card limitations) anything I can really put my hand= on my heart and cal against here in the Central Plains - well at this tim= e of year.=20 =20 So I took a 10 USD 10Mhz OXCO (Raltron) , beat calibrated it against WWV,= squared up using a 4046 and then divided by 1024, using a 4060 to give me= a divide by resulting in a nice sig on 9.765625Khz - just been tracking= that against cal and drift and Im now happy that I know where my receiver= is. Also good for LF work too! Now to see if we can see anything once the= se deadly tornadoes and resulting QRN die down over the next couple of day= s. =20 regards Laurence KL 1X in 5 From: markusvester@aol.com To: rsgb_lf_group@blacksheep.org Date: Thu, 22 Apr 2010 19:34:52 +0200 Subject: Re: LF: vlf stuff Dear Laurence, VLF Dreamers, =20 those settings will require some adaptions, regarding samplerate etc. (see= posting below). Attached is the current setup of my VLF grabber with 0.95= mHz resolution.=20 =20 SpecLab 2.75 b08 contains a new samplerate tracking algorithm based on the= strong and precise VLF MSK transmitters. It is very easy to set up, and= avoids the difficulty to identify the central line in the Alpha spectrum.= I am currently tracking GBZ 19.58 kHz here. To use the stateside transmit= ters (NAA, NML) at 24 kHz and above, you will have to switch from 48 to 96= kHz samplerate. =20 BTW - What is your distance to Paul W1VLF? =20 Kind regards, MArkus (DF6NM) =20 ----- Original Message -----=20 From: Laurence KL1X=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Thursday, April 22, 2010 6:56 PM Subject: RE: LF: vlf stuff Using Spectrum labs with some new set ups - see attachments - File, Load= settings, then select one of the above youve pasted previously - the othe= r piece of software is the SAQ RX http://web.telia.com/~u33233109/saqrx/s= aqrx.html =20 cheers =20 ----- Original Message -----=20 From: Markus Vester=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Saturday, April 03, 2010 10:03 AM Subject: VLF: SpecLab settings Dear Wolfgang, Daniele, LF, =20 thanks Wolfgang for the hint about turning off periodic actions. =20 There are actually three configuration files in http://www.mydarc.de/df6nm/vlf/9kHz_Grabber_SpecLab_configurations.zip=20 so some explanation is probably on order: =20 - 9kHzWide.usr has 0 to 24 kHz on the top and around 9 kHz at the bottom,= with 1.46 Hz FFT resolution and 1 second scrolling. It's meant to give a= quick overview of the band, eg. to optimize antenna coupling. You shold= see the big MSK signals, and three lines of tiny dots on the Alpha frequ= encies. But this setting is too fast to see a weak signal. =20 - 9kHz_slow2_white is the original 15.3 mHz setting, with the 8.97 kHz ar= ea at the top and 11.905 at the bottom. It scrolls at 10 seconds, and you= can read QRSS 60 or slower keying. Beware there is an offset (0.30 Hz and= 0.0397 Hz) on the frequency scales, which I had used to correct for my "w= hite" notebook's samplerate offset. But this will certainly be different= on other machines, so I would recommend to reset those offsets to zero,= and use the samplerate calibration entry in SpecLab's audio settings tab= instead. =20 - 9kHz_4mHz.usr is the one currently displayed on the lower part of my gr= abber. It has a more sensitive 3.8 mHz FFT and 1 minute scrolling. Again,= you should delete the Freq1 and Freq2 offsets and enter your samplerate. =20 Good luck to Stefan and all, =20 Markus =20 _________________________________________________________________ The New Busy is not the too busy. Combine all your e-mail accounts with Ho= tmail. http://www.windowslive.com/campaign/thenewbusy?tile=3Dmultiaccount&ocid=3D= PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_4=3D --_b5071e26-d4f5-4c42-bee4-715c7501163f_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks Markus -Ive been concentrating on rx soundcard calibration and= dont have (within my sound card limitations) anything I can really= put my hand on my heart and cal against here in the Central Plains - well= at this time of year.
 
So I took a 10 USD 10Mhz OXCO  (Raltron) , beat calibrated= it against WWV, squared up using a 4046 and then divided by 1024, using= a 4060 to give me a divide by resulting in a nice sig on 9.765625Khz - ju= st been tracking that against cal and drift and Im now happy tha= t I know where my receiver is. Also good for LF work too! Now to= see if we can see anything once these deadly tornadoes and resu= lting QRN die down over the next couple of days.
 
regards
 Laurence KL 1X in 5
From: markusvester@aol.com
To: rsgb_lf_group@blacksheep.org
Date: Th= u, 22 Apr 2010 19:34:52 +0200
Subject: Re: LF: vlf stuff

Dear Laurence, VLF Dreamers,
 
those settings will require some adaptions,= regarding samplerate etc. (see posting below). = Attached is the current setup of my VLF grabber with 0.95 mHz resolution.&= nbsp;
 
SpecLab 2.75 b08 contains a new samplerate tr= acking algorithm based on the strong and precise VLF MSK tr= ansmitters. It is very easy to set up, and avoids the difficulty = ;to identify the central line in the Alpha spectrum. I am currently= tracking GBZ 19.58 kHz here. To use the stateside transmitters (NAA,= NML) at 24 kHz and above, you will have to switch from 48 to 96 kHz sampl= erate.
 
BTW - What is your distance to Paul W1VLF?<= /DIV>
 
Kind regards,
MArkus (DF6NM)
 
----- Original Message -----
Sent: Thursday, April 22, 2010 6:56= PM
Subject: RE: LF: vlf stuff

Using Spectrum labs with some new set ups - see attachments - Fi= le,  Load settings, then select one of the above youve pasted previou= sly - the other piece of software is the SAQ RX  http://web.telia.com/~u33233109/s= aqrx/saqrx.html
 
cheers
 
----- Original Message -----
Sent: Saturday, April 03, 2010 10:0= 3 AM
Subject: VLF: SpecLab settings

Dear Wolfgang, Daniele, LF,
 
thanks Wolfgang for the hint about turnin= g off periodic actions.
 
There are actually three configurati= on files in
so some explanation is probably on order:=
 
-  9kHzWide.usr has 0 to 24 kHz= on the top and around 9 kHz at the bottom, with 1.46 Hz FFT resoluti= on and 1 second scrolling. It's meant to give a quick overview of the band= , eg. to optimize antenna coupling. You shold see the big MSK si= gnals, and  three lines of tiny dots on the Alpha frequencies. B= ut this setting is too fast to see a weak signal.
 
-  9kHz_slow2_white is the original= 15.3 mHz setting, with the 8.97 kHz area at the top and 11.905 at the bot= tom. It scrolls at 10 seconds, and you can read QRSS 60 or slower key= ing. Beware there is an offset (0.30 Hz and 0.0397 Hz) on the fr= equency scales, which I had used to correct for my "white" notebook's samp= lerate offset. But this will certainly be different on other mac= hines, so I would recommend to reset those offsets to zero, and use= the samplerate calibration entry in SpecLab's audio settings tab ins= tead.
 
-  9kHz_4mHz.usr is the one&nbs= p;currently displayed on the lower part of my grabber. It has a more sensi= tive 3.8 mHz FFT and 1 minute scrolling. Again, you should delete the Freq= 1 and Freq2 offsets and enter your samplerate.
 
Good luck to Stefan and all,
 
Markus
 
=
The New Busy is not the too busy. Combine all yo= ur e-mail accounts with Hotmail. Get busy. =3D --_b5071e26-d4f5-4c42-bee4-715c7501163f_--