Return-Path: Received: from mtain-dc08.r1000.mx.aol.com (mtain-dc08.r1000.mx.aol.com [172.29.64.136]) by air-ma06.mail.aol.com (v129.4) with ESMTP id MAILINMA064-b52b4cec376012d; Tue, 23 Nov 2010 16:51:28 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc08.r1000.mx.aol.com (Internet Inbound) with ESMTP id 618D038000131; Tue, 23 Nov 2010 16:51:26 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PL0l0-0000bn-0M for rs_out_1@blacksheep.org; Tue, 23 Nov 2010 21:50:34 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PL0kz-0000be-8I for rsgb_lf_group@blacksheep.org; Tue, 23 Nov 2010 21:50:33 +0000 Received: from nm10.bullet.mail.ukl.yahoo.com ([217.146.182.251]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1PL0kz-00082K-4N for rsgb_lf_group@blacksheep.org; Tue, 23 Nov 2010 21:50:33 +0000 Received: from [217.146.183.184] by nm10.bullet.mail.ukl.yahoo.com with NNFMP; 23 Nov 2010 21:50:27 -0000 Received: from [217.146.183.162] by tm15.bullet.mail.ukl.yahoo.com with NNFMP; 23 Nov 2010 21:50:27 -0000 Received: from [127.0.0.1] by omp1003.mail.ukl.yahoo.com with NNFMP; 23 Nov 2010 21:50:27 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 491591.12411.bm@omp1003.mail.ukl.yahoo.com Received: (qmail 5357 invoked by uid 60001); 23 Nov 2010 21:50:27 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.co.uk; s=s1024; t=1290549027; bh=PMdYuxqbJXg2haH8gYqkoyCfpHSn6j9y248dEVtSaFQ=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=chhoPREWoy6FM4uDMwMjNkyYjTqMzOpgocvzWSnMF1kZpSRvR29e1Kv9KvuNFfRqX9O9vIUt/YJh8bJR0ebvWEqYorPbTTCdfVmwTMIt+cMs0WX2yAdLm7zKoGHjzBzrks3DN5bSgXaLYlKRkPH8b9L/bpph8JLsjZcxAiCvw3E= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.co.uk; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=4m2270qywHkdU6H/PcIlytXj7pqWlV91iwoMwQob0yPJzXEikkoIf9zUEzyzljx454jI4aBNUn6SgPyFphyDj+hn3ZGq55oPCk7bEG2tHWj/bbnPWIs8ShJtegAnHrkT4i96ihtoos+3n9SUfgCd1A4lqEFg0Ob+w1sMaoQjjN0=; Message-ID: <259440.2827.qm@web28108.mail.ukl.yahoo.com> X-YMail-OSG: mNKiW7gVM1mDlBGcHDLXFcRpzLfSfZXAy48mCTJP4iQ8fRv dq9_JdfgfRjIEo3cbGTHlgHlN1giifAXkH1oV2qN5Eii4Pit56mfWj8NcdCP Q3R8t1XDd2wdIl8EXY.Ej0ErEKIvB6Gqp64aqdVJCCVQ6RD2qXIfJE5UK43w s1QaNCVSbeVbnnH6dPhrH8VGiK5mMdH_cu.zihYpE3Fgb9HFjsxLWj8IJuUO tWjNIFjAkZylgtGXpBBmjMreLjNjoftS0tCrFjf546hvuQlTVPG_AjwL6uT_ 1Ow814VwE3j6ZMw.p7vuyl9pxBMOX7_sd10wxQZVlPP4i1a9ggPI- Received: from [81.158.122.45] by web28108.mail.ukl.yahoo.com via HTTP; Tue, 23 Nov 2010 21:50:26 GMT X-Mailer: YahooMailClassic/11.4.9 YahooMailWebService/0.8.107.285259 Date: Tue, 23 Nov 2010 21:50:26 +0000 (GMT) From: M0FMT To: rsgb_lf_group@blacksheep.org In-Reply-To: MIME-Version: 1.0 DomainKey-Status: good (testing) Subject: Re: LF: VLF G3XIZ - QRT Content-Type: multipart/alternative; boundary="0-1176309109-1290549026=:2827" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.7 required=5.0 tests=HTML_40_50, HTML_FONTCOLOR_UNSAFE,HTML_MESSAGE,HTML_TAG_EXISTS_TBODY 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-d233.2 ; domain : yahoo.co.uk DKIM : pass x-aol-sid: 3039ac1d40884cec375e190a X-AOL-IP: 195.171.43.25 --0-1176309109-1290549026=:2827 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Thanks Gary =A0 Because of a very very slow and unpredictable BT so called broadband conne= ction, all my=A0mail is directed to Trash Can .... don't ask.... So unless= I catch it before being dumped I miss it. =A0 So thank you for the update. I spent an hour and a quarter .... dooh! =A0 Well I will take a look at the first bit of my capture to see if anything= was there. During the first hour I only had time for casual checks so=A0I= decided to record the whole spectrum for later analyses. 73 es GL petefmt I support www.NotSpotTelecom.Com your community Telco / ISP. --- On Tue, 23/11/10, Gary - G4WGT wrote: From: Gary - G4WGT Subject: Re: LF: VLF G3XIZ - QRT To: rsgb_lf_group@blacksheep.org Date: Tuesday, 23 November, 2010, 19:22 Pete,=20 I read a mail that Chris wrote stating :- >>Hello Rik, >>Thanks for the advice. >>I'll set the DFCW for 60 or even 120 second elements. >>Will that do ? >>73,=A0Chris G3XIZ And in a later mail wrote that his Tx PA blew up after 45 minutes. I hope that helps you. 73 Gary - G4WGT. On 23 November 2010 18:59, M0FMT wrote: Does anyone know=20 =A0 a:- What time did=A0the transmission end? Because I have 10s of Mbytes of= recording to backtrack through and I don't want to be looking at the time= when there was no transmission. =A0 b:- Was he sending a steady carrier or what was sent? Dennis thinks it was= steady carrier? =A0I think having a regular pulse like an Alpha stations= would help to identify the carrier through the noise for starters anyway= because a long QRSS or steady carrier is impossible to separate=A0from al= l the steady QRM carriers when you are unsure of what you are looking for= around that frequency especially at this QTH. It is frustrating to watch= a carrier signal for ages only to find it is QRM.=20 73 es GL petefmt I support www.NotSpotTelecom.Com your community Telco / ISP. --- On Tue, 23/11/10, Chris Osborn wrote: From: Chris Osborn Subject: Re: LF: VLF G3XIZ - QRT To: rsgb_lf_group@blacksheep.org Date: Tuesday, 23 November, 2010, 12:57 Hello Stefan / LF, =A0 All was going last night well until I=A0heard sparking from the aerial dis= tribution box each time the carrier was turned off. =A0 After about 45 minutes the PA FET's blew up. =A0 I did some investigation and found that the output transformer has develop= ed=A0some short-circuited turns and so is now useless. =A0 The loading coil seems unharmed so once I get a replacement transformer an= d connect=A0in some=20 new FET's I'll be back in business. =A0 I'll=A0slow down=A0the rise and fall times of the pulse train from the dri= ver unit to the FET's and hopefully cure the sparking. =A0 (Mal)=20 Yes,=A0N.O.V. holders=A0must get prior permission before=A0they transmit= and must stay by the telephone for the duration. =A0 Thanks to all those who looked for my signals. =A0 73=20 Chris G3XIZ =A0 =A0 From: Stefan Sch=E4fer To: rsgb_lf_group@blacksheep.org Sent: Mon, 22 November, 2010 21:32:28 Subject: Re: LF: VLF G3XIZ - QRT Hi Chris, Sorry to hear that. Just checked to mails after beeing abscent the weekend= and wanted to wish good luck too now but just read your mail below. I assume the breakdown immediately de-tuned your system which reduced the= HV? So the damage is limited to a few turns? Has it happened at the 0.2mm= dia wire? BTW i am using 0.4mm dia wire, so not really much more... Good luck in the next tests! 73, Stefan Am 22.11.2010 22:15, schrieb Chris Osborn:=20 Thanks for looking Roger and chaps but game's over for tonight. I've insulation breakdown somewhere in the aerial circuit and I can't fix= it until daylight. Maybe try again next weekend. 73 Chris G3XIZ From: Roger Lapthorn To: rsgb_lf_group@blacksheep.org; Chris Osborn Sent: Mon, 22 November, 2010 20:49:24 Subject: Re: LF: G3XIZ - no copy yet on 8.9719kHz Just swapped from the loop to the earth electrode - band noise stronger -= and there may be a hint of a signal on Chris's frequency. 73s Roger G3XBM On 22 November 2010 20:21, Roger Lapthorn wrote: Have been looking for 20 minutes so far but nothing seen from Chris at abo= ut 34km distance. Will continue to look for the next 2 hours. 73s Roger G3XBM --=20 http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk http://www.youtube.com/user/g3xbm G3XBM=A0=A0 GQRP 1678=A0=A0=A0 ISWL G11088 --=20 http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk http://www.youtube.com/user/g3xbm G3XBM=A0=A0 GQRP 1678=A0=A0=A0 ISWL G11088 =20 --0-1176309109-1290549026=:2827 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
=20 --0-1176309109-1290549026=:2827--
Thanks Gary
 
Because of a very very slow and unpredictable BT so called broadband connection, all my mail is directed to Tras= h Can .... don't ask.... So unless I catch it before being dumped I miss= it.
 
So thank you for the update. I spent an hour and a quarter .... dooh!=
 
Well I will take a look at the first bit of my capture to see if anyt= hing was there. During the first hour I only had time for casual checks so=  I decided to record the whole spectrum for later analyses.

73= es GL petefmt

I support www.NotSpotTelecom.Com your= community Telco / ISP.

--- On Tue, 23/11/10, Gary - G4WGT &l= t;g4wgt@tiscali.co.uk> wrote:

From: Gary - G4WGT <g4wgt@tiscali.co.uk>=
Subject: Re: LF: VLF G3XIZ - QRT
To: rsgb_lf_group@blacksheep.orgDate: Tuesday, 23 November, 2010, 19:22

Pete,=20

I read a mail that Chris wrote stating :-

=
>= >Hello Rik,
>>Thanks for the advice.
>>I'll set the= DFCW for 60 or even 120 second elements.
>>Will that do ?
>= ;>73, Chris G3XIZ

=
And= in a later mail wrote that his Tx PA blew up after 45 minutes.

=
I ho= pe that helps you.

=
73

=
Gary= - G4WGT.

=


On 23 November 2010 18:59, M0FMT <m0fmt@yahoo.co.uk> wrote:
Does anyone know
 
a:- What time did the transmission end? Because I have 10s of Mb= ytes of recording to backtrack through and I don't want to be looking at= the time when there was no transmission.
 
b:- Was he sending a steady carrier or what was sent? Dennis thinks= it was steady carrier?  I think having a regular pulse like an Alpha= stations would help to identify the carrier through the noise for starter= s anyway because a long QRSS or steady carrier is impossible to separate&n= bsp;from all the steady QRM carriers when you are unsure of what you are= looking for around that frequency especially at this QTH. It is frustrati= ng to watch a carrier signal for ages only to find it is QRM.

73= es GL petefmt

I support www.NotSpotTelecom.Com your community= Telco / ISP.

--- On Tue, 23/11/10, Chris Osborn <g3xiz@yah= oo.co.uk> wrote:

From: Chris Osborn <g3xiz@yahoo.co.uk><= BR>Subject: Re: LF: VLF G3XIZ - QRT
To: rsgb_lf_grou= p@blacksheep.org
Date: Tuesday, 23 November, 2010, 12:57

Hello Stefan / LF,
 
All was going last night well until I heard sparking from the ae= rial distribution box each
time the carrier was turned off.
 
After about 45 minutes the PA FET's blew up.
 
I did some investigation and found that the output transformer has de= veloped some
short-circuited turns and so is now useless.
 
The loading coil seems unharmed so once I get a replacement transform= er and connect in some
new FET's I'll be back in business.
 
I'll slow down the rise and fall times of the pulse train= from the driver unit to the FET's and hopefully cure the sparking.
 
(Mal)
Yes, N.O.V. holders must get prior permission before t= hey transmit and must stay by the telephone for the duration.
 
Thanks to all those who looked for my signals.
 
73
Chris G3XIZ
 

 
=
From: Stefan Sch=E4fer <= ;schaefer@iup.uni-heidelberg.de>
To: rsgb_lf_g= roup@blacksheep.org
Sent: Mon, 22 November, 2010 21:32:28
Subject: Re: LF: VLF G3XIZ - QRT

Hi Chris,=

Sorry to hear that. Just checked to mails after beeing abscent the= weekend and wanted to wish good luck too now but just read your mail belo= w.
I assume the breakdown immediately de-tuned your system which reduce= d the HV? So the damage is limited to a few turns? Has it happened at the 0.2mm dia wire?
BTW i am using 0.4mm= dia wire, so not really much more...

Good luck in the next tests!<= BR>
73, Stefan


Am 22.11.2010 22:15, schrieb Chris Osborn:=20
Thanks for looking Roger and chaps but game's over for tonight.
I've insulation breakdown somewhere in the aerial circuit and I can't fi= x it until daylight.

Maybe try again next weekend.

73 Chris= G3XIZ


=
From: Roger Lapthorn <rogerlapthorn@gmail.com>
= To: rsgb_lf_group@blacksheep.org; Chris Osborn <g3xiz@yahoo.co.uk>
Sent: Mon, 22 November, 2010 20:49= :24
Subject: Re: LF: G3= XIZ - no copy yet on 8.9719kHz

Just swapped from the loop to= the earth electrode - band noise stronger - and there may be a hin= t of a signal on Chris's frequency.

73s
Roger G3XBM

On 22 November 2010 20:21, Roger Lapthorn <rogerlapthorn@gmail.com> wr= ote:
Have been looking for 20 minutes so far= but nothing seen from Chris at about 34km distance.

Will continue= to look for the next 2 hours.

73s
Roger G3XBM

--
http://g3xbm-qrp.blogspot.com/
http://ww= w.g3xbm.co.uk
http://www.youtube.com/user/g3xbm
G3XBM&nbs= p;  GQRP 1678    ISWL G11088



--
http://g3xbm-qrp.blogspot.com/
<= A href=3D"http://www.g3xbm.co.uk/" rel=3Dnofollow target=3D_blank>http://w= ww.g3xbm.co.uk
http://www.youtube.com/user/g3xbm
G3XBM=    GQRP 1678    ISWL G11088
=