Return-Path: Received: from mtain-dc06.r1000.mx.aol.com (mtain-dc06.r1000.mx.aol.com [172.29.64.134]) by air-de05.mail.aol.com (v129.4) with ESMTP id MAILINDE054-5eb54d1dc42f65; Fri, 31 Dec 2010 06:53:19 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc06.r1000.mx.aol.com (Internet Inbound) with ESMTP id C99AA380000A4; Fri, 31 Dec 2010 06:53:02 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PYdWh-0000T7-P0 for rs_out_1@blacksheep.org; Fri, 31 Dec 2010 11:52:07 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PYdWh-0000Sy-21 for rsgb_lf_group@blacksheep.org; Fri, 31 Dec 2010 11:52:07 +0000 Received: from mail-iy0-f171.google.com ([209.85.210.171]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PYdWe-0005pt-AZ for rsgb_lf_group@blacksheep.org; Fri, 31 Dec 2010 11:52:07 +0000 Received: by iyj21 with SMTP id 21so10544377iyj.16 for ; Fri, 31 Dec 2010 03:51:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type; bh=tHIUBiJFkIZeM0k6Jb56yHjjRWNodXj74PyefrKM7kg=; b=BYf0deLgHcB1G4mVvFhHD12rdrmX4JmHa++AAvI2A1/cNrOisSLiAKvJPkzJPuV83i 6TdorPikOVjGFjbR3/2EyGYQXvWXjOd0fGgzcFKuU+ZVt17SFuIPiYZm2jD+LBgs2twr YZ2bu6hf3nHPjI6TUVcGD4gzQK7s2E9ZWDWXI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=ALVMweun6A8f36HMhfvVUs1dYku74ZdPF7kujRXI5YKflIg48WEr4ZDCp1AVxPzwnl 3/JZZ4n3RqZbqDcReO32jFZzZRcTB2JeftAtJuXysD1ojNBFRWyGKr8ff6TjqhpQhEoS vLG4JPJ9RqzX2bE+1GRDogvWhz6aOqdbMMJ5M= MIME-Version: 1.0 Received: by 10.231.35.131 with SMTP id p3mr17094084ibd.87.1293796316588; Fri, 31 Dec 2010 03:51:56 -0800 (PST) Received: by 10.231.200.211 with HTTP; Fri, 31 Dec 2010 03:51:56 -0800 (PST) In-Reply-To: <979229.75434.qm@web28510.mail.ukl.yahoo.com> References: <15858.38665.qm@web28513.mail.ukl.yahoo.com> <186099.35378.qm@web28511.mail.ukl.yahoo.com> <979229.75434.qm@web28510.mail.ukl.yahoo.com> Date: Fri, 31 Dec 2010 11:51:56 +0000 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: VLF - G3XIZ transmitting today Content-Type: multipart/alternative; boundary=00032557a2badcadd70498b36dad 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=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-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m248.2 ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d40864d1dc41e02cf X-AOL-IP: 195.171.43.25 X-Mailer: Unknown (No Version) --00032557a2badcadd70498b36dad Content-Type: text/plain; charset=ISO-8859-1 Nothing seen at 30mHz resolution. There are weak lines present, but six spread evenly across 20Hz display are QRM, and nothing in the right spot. . ... going to reconfigure the SDR-IQ settings for a narrower bandwidth ... Andy www.g4jnt.com On 31 December 2010 11:08, Chris Osborn wrote: > Ok Gary, > > There's 50m of balloon aerial aloft now but one of the 4 ballooons has just > burst. > It must have touched the wire. > Hopefully the others will hold out. > > I think I may try heavier wire next time as 0.2 mm is very difficult to > handle. > > 73 Chris XIZ > > ------------------------------ > *From:* Gary - G4WGT > > *To:* rsgb_lf_group@blacksheep.org > *Sent:* Fri, 31 December, 2010 10:57:06 > > *Subject:* Re: LF: VLF - G3XIZ transmitting today > > Chris, > > Just read the mail (1050utc) & I have adjusted my loop Rx system to your > frequency running SpecLab at QRS600, 4.5mHz. > > 73, > > Gary - G4WGT - IO83qo. > > LF MF Grabber - Web > Site - Blogspot > - 9kHz Grabber > > > > On 31 December 2010 10:07, Chris Osborn wrote: > >> All noted Andy. >> >> The aerial current is about 0.15A >> The frequency is drifting slightly due to shack cooling and is now >> 8.971 870 kHz >> >> I'll try the balloon aerial in about half an hour then switch to slow >> QRSS. >> >> 73 Chris XIZ >> >> ------------------------------ >> *From:* Andy Talbot >> *To:* rsgb_lf_group@blacksheep.org >> *Sent:* Fri, 31 December, 2010 9:43:41 >> *Subject:* Re: LF: VLF - G3XIZ transmitting today >> >> Thinking about that - >> Its exactly what I did with my first 73khz SLOWCW Tx prog back in 1997. >> SLOWCW was generated, and a part of the 'mark' signal consisted of the >> callsign being sent at normal CW speeds for identification. G3PLX could >> see this fast CW on his received warerfall as a definte reduction in carrier >> power. >> >> >> On 31 December 2010 09:39, Andy Talbot wrote: >> >>> SDR-IQ is running, with a 20Hz wide waterfall looking in 0.03Hz FFT bin >>> size. >>> It took 5 minutes for a calibration signal to show up on the screen. >>> The paint is drying - slowly :-)0 >>> >>> If you want to send QRSS identifier at high speeds (relative) , suggest >>> you repeat at 10 or 15 minute *regular* intervals. They will then show >>> up up as periodic reductions in carrier level of about 3dB or so. >>> >>> If fact, tht just may be a suitable task for a new bit of software or a >>> PIC - a mixed QRSSSSSS generator >>> >>> >>> Andy >>> www.g4jnt.com >>> >>> >>> >>> On 31 December 2010 08:44, Chris Osborn wrote: >>> >>>> LF, >>>> >>>> I shall be transmitting VLF today starting at 09.00 Z >>>> >>>> Freq: 8.971 855 kHz (nominal but close) >>>> Mode : Continuous carrier with occasional QRSS identifier >>>> Aerial: Initially: 40m inverted 'L' at 10m >>>> Later: balloon supported aerial at 50m >>>> >>>> Hopefully the system will keep going as the loading coil re-wind >>>> seems to have done the trick now that the varnish has dried. >>>> >>>> 73 >>>> Chris >>>> G3XIZ >>>> >>>> >>> >> >> > > > -- > > > > --00032557a2badcadd70498b36dad Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Nothing seen at 30mHz resolution.=A0=A0 There are weak lines present,= but six=A0spread evenly across 20Hz display are QRM,=A0 and nothing in th= e right spot.=A0=A0 .
=A0
...=A0 going to reconfigure the SDR-IQ settings for a narrower bandwi= dth=A0 ...
=A0
=A0
Andy


=A0
On 31 December 2010 11:08, Chris Osborn <g3xiz@yahoo.co.uk> wrote:
Ok Gary,

There's 50m of balloon aerial aloft now but one= of the 4 ballooons has just burst.
It must have touched the wire.
H= opefully the others will hold out.

I think I may try heavier wire= next time as 0.2 mm is very difficult to handle.

73 Chris XIZ
=
From: Gary - G4WGT <g4wgt@tiscali.co.uk= >=20

To:= rsgb_lf= _group@blacksheep.org
Se= nt: Fri, 31 December, 2010 10:57:06=20

Subject:= Re: LF: VLF - G3XIZ transmitting today

Chris,=20

Just read the mail (1050utc) & I have adjusted my loop Rx system= to your frequency running SpecLab at QRS600, 4.5mHz.

73,=20

Gary - G4WGT - IO83qo.




On 31 December 2010 10:07, Chris Osborn <g3xiz@yahoo.co.uk> wrote:
All noted Andy.

The aerial current is about 0.15A
The frequ= ency is drifting slightly due to shack cooling and is now
8.971 870 kH= z

I'll try the balloon aerial in about half an hour then switch= to slow QRSS.

73 Chris XIZ
=
From: Andy Talbot <a= ndy.g4jnt@gmail.com>
To: rsgb_lf_group@blacksheep.org
Sent: Fri, 31 December, 20= 10 9:43:41
Subject: Re:= LF: VLF - G3XIZ transmitting today

Thinking about that -
Its exactly what=A0I did with my first 73khz SLOWCW Tx=A0 prog back= in 1997.=A0=A0 SLOWCW was generated, and a part of the 'mark' sig= nal consisted of the callsign being sent at normal CW speeds for identific= ation.=A0=A0 G3PLX could see this fast CW on his received warerfall as a= definte reduction in carrier power.

=A0
On 31 December 2010 09:39, Andy Talbot <andy.g4jnt@gmail.com> wrote:
SDR-IQ is running, with a 20Hz wide waterfall looking in 0.03Hz FFT= bin size.
It took 5 minutes for=A0a calibration signal to show up on the screen= .
The paint is drying - slowly :-)0
=A0
If you want to send QRSS identifier at high speeds (relative) , sugge= st you repeat at 10 or 15 minute regular intervals.=A0 They will th= en show up up as periodic reductions in carrier level of about 3dB or so.<= /div>
=A0
If fact, tht just may be a suitable task for a new bit of software or= a PIC=A0- a mixed QRSSSSSS generator
=A0
=A0
Andy


=A0
On 31 December 2010 08:44, Chris Osborn <g3xiz@yahoo.co.uk> wrote:
LF,

I shall be transmitting VLF today starting at 09.00 Z
<= br>Freq:=A0=A0=A0 8.971 855 kHz (nominal but close)
Mode : Continuous= carrier with occasional QRSS identifier
Aerial:=A0 Initially:=A0 40m= inverted 'L' at 10m=A0
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 Later:=A0=A0=A0=A0 balloon supported aerial= at 50m

Hopefully the system will keep going as the loading coil re= -wind
seems to have done the trick now that the varnish has dried.
=
73
Chris
G3XIZ






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