Return-Path: Received: from mtain-dh07.r1000.mx.aol.com (mtain-dh07.r1000.mx.aol.com [172.29.65.27]) by air-df07.mail.aol.com (v129.4) with ESMTP id MAILINDF071-5efa4d1dba113d3; Fri, 31 Dec 2010 06:10:09 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dh07.r1000.mx.aol.com (Internet Inbound) with ESMTP id 984113800029C; Fri, 31 Dec 2010 06:10:02 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PYcr4-0008ES-GT for rs_out_1@blacksheep.org; Fri, 31 Dec 2010 11:09:06 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PYcr3-0008EJ-TC for rsgb_lf_group@blacksheep.org; Fri, 31 Dec 2010 11:09:05 +0000 Received: from nm11.bullet.mail.ukl.yahoo.com ([217.146.183.185]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1PYcr3-0005Xc-Qf for rsgb_lf_group@blacksheep.org; Fri, 31 Dec 2010 11:09:05 +0000 Received: from [217.146.183.180] by nm11.bullet.mail.ukl.yahoo.com with NNFMP; 31 Dec 2010 11:09:00 -0000 Received: from [217.146.183.169] by tm11.bullet.mail.ukl.yahoo.com with NNFMP; 31 Dec 2010 11:09:00 -0000 Received: from [127.0.0.1] by omp1010.mail.ukl.yahoo.com with NNFMP; 31 Dec 2010 11:09:00 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 110675.45838.bm@omp1010.mail.ukl.yahoo.com Received: (qmail 75475 invoked by uid 60001); 31 Dec 2010 11:09:00 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.co.uk; s=s1024; t=1293793739; bh=jijRt1YsXBm2zKucEfPNpMlEM0b2Zi1Qc+Y0AJMBsIo=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=hPZTKriTw8O3+JcGVY4EbYLlGzymbnbMdALIgZdv8syM+G96IvZCPikaL4eguwotIWX18d1JAVB7wJhZKA/8eeXcOVWpbyq/Fh34Fxdb/JXFvnO5L1cQmfNH63+xeLZJRwr4N7R/UrBtf4PIxrM+z0IEK5HIYn1Z9COVOl7wZ/g= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.co.uk; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=4ZqfzvLsY9BH0gXTL6hY8LC/mZqzg2uXQb2/Z3ZVz5EVbZ7S+CaJurAmVdRvUdKNik4J10YUtdIfO/VVVWKNO8LjWC3Jf6rzyyuj/TOV9CDIm9cJUs1z8U9lfcZ4v9FuZ9bxkygmFFfQfIIIjQHRN9VkyKAQGg6rUZeL5disLd8=; Message-ID: <979229.75434.qm@web28510.mail.ukl.yahoo.com> X-YMail-OSG: Kp1VJYIVM1mSY9zu3ouMOdfyVOZn33c64VnkCK6f8LVq_b7 keF3wCV5FVwCZsyrWdD17eV8YuHeDjGQNwF6ifCghSfu.vHbLogvJhgGLYf4 G_vKDHoTuwrJ.D2hzYjCQh.qhk0ymMcySpUiiwzN9WX8M_5pvT5vW2C99kYB zu6lLbhRZcVm7rlHXMvE0J40_FKwEhKllq.vq4ZyvGKAb3.mdvzwLQ1Pd_BT fInS.FbWsfJOQnQvnR_cjd5qYGOkhJ38kr6FsUobuFNk_NV4WMcruWTGaEg- - Received: from [81.97.191.183] by web28510.mail.ukl.yahoo.com via HTTP; Fri, 31 Dec 2010 11:08:59 GMT X-Mailer: YahooMailRC/553 YahooMailWebService/0.8.107.285259 References: <15858.38665.qm@web28513.mail.ukl.yahoo.com> <186099.35378.qm@web28511.mail.ukl.yahoo.com> Date: Fri, 31 Dec 2010 11:08:59 +0000 (GMT) From: Chris Osborn To: rsgb_lf_group@blacksheep.org In-Reply-To: MIME-Version: 1.0 DomainKey-Status: good (testing) Subject: Re: LF: VLF - G3XIZ transmitting today Content-Type: multipart/alternative; boundary="0-537989909-1293793739=:75434" 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 x-aol-global-disposition: G X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d247.2 ; domain : yahoo.co.uk DKIM : pass x-aol-sid: 3039ac1d411b4d1dba0a4758 X-AOL-IP: 195.171.43.25 --0-537989909-1293793739=:75434 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Ok Gary, There's 50m of balloon aerial aloft now but one of the 4 ballooons has jus= t=20 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 ha= ndle. 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= =20 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=20 >8.971 870 kHz > >I'll try the balloon aerial in about half an hour then switch to slow QRS= S. > >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 -=20 >Its exactly what I did with my first 73khz SLOWCW Tx prog back in 1997.= =20 >SLOWCW was generated, and a part of the 'mark' signal consisted of the ca= llsign=20 >being sent at normal CW speeds for identification. G3PLX could see this= fast=20 >CW on his received warerfall as a definte reduction in carrier power. > >=20 >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 >>=20 >>If you want to send QRSS identifier at high speeds (relative) , suggest= you=20 >>repeat at 10 or 15 minute regular intervals. They will then show up up= as=20 >>periodic reductions in carrier level of about 3dB or so. >>=20 >>If fact, tht just may be a suitable task for a new bit of software or a= PIC - a=20 >>mixed QRSSSSSS generator >>=20 >>=20 >>Andy >>www.g4jnt.com >> >> >>=20 >>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 =20 >>> Later: balloon supported aerial at 50m >>> >>>Hopefully the system will keep going as the loading coil re-wind=20 >>>seems to have done the trick now that the varnish has dried. >>> >>>73 >>>Chris=20 >>>G3XIZ >>> >>> >> > > --=20 =20 --0-537989909-1293793739=:75434 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
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
<= /div>

From: Gary - G4WGT <g4wgt@tis= cali.co.uk>
To: rsg= b_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 - <= a rel=3D"nofollow" target=3D"_blank" href=3D"http://myweb.tiscali.co.uk/wg= taylor/index.html">Web Site - Blogspot -=  9kHz Grabber



On= 31 December 2010 10:07, Chris Osborn <g3xiz@yahoo.co.uk> 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 <andy.g4jnt@gmail.com>
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 ident= ification.   G3PLX could see this fast CW on his received warerf= all as a definte reduction in carrier power.

 
On 31 December 2010 09:39, Andy Talbot <andy.g4jnt@gmail.c= om> 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 scr= een.
The paint is drying - slowly :-)0
 
If you want to send QRSS identifier at high speeds (relative) , sugge= st 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


 
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:    8.971 855 kHz (nominal but close)
Mode : Con= tinuous carrier with occasional QRSS identifier
Aerial:  Initially= :  40m inverted 'L' at 10m 
           Later: &= nbsp;   balloon supported aerial at 50m

Hopefully the sys= tem will keep going as the loading coil re-wind
seems to have done the= trick now that the varnish has dried.

73
Chris
G3XIZ







--

<= /div>

--0-537989909-1293793739=:75434--