Return-Path: Received: from mtain-di06.r1000.mx.aol.com (mtain-di06.r1000.mx.aol.com [172.29.64.10]) by air-di06.mail.aol.com (v129.4) with ESMTP id MAILINDI063-eacc4c434d2326e; Sun, 18 Jul 2010 14:51:15 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-di06.r1000.mx.aol.com (Internet Inbound) with ESMTP id AE3DD380000C0; Sun, 18 Jul 2010 14:51:13 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OaYve-0004F1-Kh for rs_out_1@blacksheep.org; Sun, 18 Jul 2010 19:49:34 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OaYvd-0004Es-JK for rsgb_lf_group@blacksheep.org; Sun, 18 Jul 2010 19:49:33 +0100 Received: from mtaout01-winn.ispmail.ntl.com ([81.103.221.47]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OaYvc-00042V-BS for rsgb_lf_group@blacksheep.org; Sun, 18 Jul 2010 19:49:33 +0100 Received: from know-smtpout-4.server.virginmedia.net ([62.254.123.3]) by mtaout01-winn.ispmail.ntl.com (InterMail vM.7.08.04.00 201-2186-134-20080326) with ESMTP id <20100718184926.LTFA3266.mtaout01-winn.ispmail.ntl.com@know-smtpout-4.server.virginmedia.net> for ; Sun, 18 Jul 2010 19:49:26 +0100 Received: from [86.31.214.214] (helo=desktop) by know-smtpout-4.server.virginmedia.net with esmtpa (Exim 4.63) (envelope-from ) id 1OaYvS-0000Vc-H1 for rsgb_lf_group@blacksheep.org; Sun, 18 Jul 2010 19:49:23 +0100 From: "James Cowburn" To: References: Date: Sun, 18 Jul 2010 19:49:14 +0100 Message-ID: <02c601cb26a9$eb257460$0217aac0@desktop> MIME-Version: 1.0 X-Mailer: Microsoft Office Outlook 11 Thread-Index: AcsmpHFyrzSAiigkT4yZp8mvGKZs2wABPOhg In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3664 X-Cloudmark-Analysis: v=1.1 cv=DhNl2YeytwJssBBGe49HJX82LNDFEEVkpVB34RXKaPo= c=1 sm=0 a=8RloEfZUAAAA:8 a=F3M5lZpKAAAA:8 a=FcAFIstCAAAA:8 a=pGLkceISAAAA:8 a=fnYqA7hvAAAA:8 a=j6Q1dnSHAAAA:8 a=A06HpNCPAAAA:20 a=WPgOe9j2KGregJhfCt0A:9 a=l3RwFZr02PeRXgJvUCQA:7 a=VvA9oWx6ur-wJF3InDPiHStsRuwA:4 a=CjuIK1q_8ugA:10 a=O58u2wXj750A:10 a=wk6s2zzMB60A:10 a=NV0LgFqsyRYA:10 a=MSl-tDqOz04A:10 a=gA6IeH5FQcgA:10 a=NWVoK91CQyQA:10 a=PId_Bgnr7tZYnYD8:21 a=5J0l1ZIhvKchh7mr:21 a=SSmOFEACAAAA:8 a=0x2gMaR8TnHer1mPbdsA:9 a=NPP4SbUNSHoZtnEEVBIA:7 a=qkgaR2Uud0LWSmRKX28elYI1p2sA:4 a=kaYK2Io2wy0jdtvo:21 a=bwDKygIXYFHpYtx3:21 a=HpAAvcLHHh0Zw7uRqdWCyQ==:117 X-Spam-Score: 0.3 (/) X-Spam-Report: autolearn=disabled,HTML_FONT_BIG=0.256,HTML_MESSAGE=0.001 Subject: RE: LF: 136.96kHz testing Content-Type: multipart/alternative; boundary="----=_NextPart_000_02C7_01CB26B2.4CE9DC60" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=BE_AMAZED,EXCUSE_16,HTML_50_60, HTML_FONTCOLOR_UNKNOWN,HTML_FONTCOLOR_UNSAFE,HTML_FONT_BIG, 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: 3039ac1d400a4c434d2167b8 X-AOL-IP: 193.82.116.20 X-AOL-SPF: domain : blacksheep.org SPF : none ------=_NextPart_000_02C7_01CB26B2.4CE9DC60 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi Roger Well, with a 8m wire earthed at both ends as an earth electrode antenna I can get S5/6 sigs into G3XIZ who is 3km away, using his old CW TX with an output of around 60w. No resonant coils, no HV issues. OK so its not Dx but we manage 8wpm CW QSOs. You've shown what can be done with 500 and QRPp so lets see what can be done on 137.7 I will be QRSS10 on 137.7 later this evening, though if last night is anything to go by then all I'll be doing is drowning in the static! With best regards Jim Dr. James Cowburn G7NKS E james.cowburn@virgin.net The information transmitted is intended only for the person to whom it is addressed and may contain confidential and/or privileged material. If you are not the intended recipient, you are hereby notified that you must not read this message. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. Consequently, this email is not intended to be contractually binding. If you received this in error, please contact the sender, return the message as well as its attachments and delete the whole from any computer. _____ From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Roger Lapthorn Sent: 18 July 2010 19:09 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: 136.96kHz testing Thank you Gary. Yes, I hope to give 136kHz a good go considering my small garden and QRP leanings. Last autumn and winter I surprised myself (and others) by achieving credible results on 500kHz with an ultra-simple QRP station. It will be tougher on 136kHz certainly, but I start with low expectations that, with some perseverance, may be exceeded. Next on the cards is the transverter design and build. There are plenty of good circuits to grab ideas from, plus I have some of my own. The efficient small antenna will be the really big challenge. 73s Roger G3XBM On 18 July 2010 18:51, Gary - G4WGT wrote: Roger, Congratulations for Txing a 136 kHz signal, however small, don't let anyone put you off (no names mentioned) we all have to start somewhere. My first 136 kHz Tx was 5 watts & an 80m inverted V antenna, I didn't have any QSO's with that but it was a start. You will make progress & I will look forward to Rxing your signal in the near future & a possible QSO. 73 Gary - G4WGT. On 18 July 2010 17:14, Roger Lapthorn wrote: This is the very beginning of my journey onto 136kHz.... For anyone very very close to Burwell, Cambs, JO02DG, I'm putting a QRP 10wpm keyer-generated CW message (later to be changed to QRSS3) out on 136.96kHz CW into my earth electrode antenna. Power from the TX is about 500mW, so ERP is just a few microwatts at most. I'd appreciate reports, but be amazed to get any until I start to run some more power into a real antenna. 73s Roger G3XBM -- http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk http://www.youtube.com/user/g3xbm G3XBM GQRP 1678 ISWL G11088 -- http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk http://www.youtube.com/user/g3xbm G3XBM GQRP 1678 ISWL G11088 ------=_NextPart_000_02C7_01CB26B2.4CE9DC60 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi Roger

 

Well, with a 8m= wire earthed at both ends as an earth electrode antenna I can get S5/6 sigs into G3XIZ who is 3k= m away, using his old CW TX with an output= of around 60w.  No resonant coils, no HV issues.   OK so its not Dx but we mana= ge 8wpm CW QSOs.  

 

You’ve sh= own what can be done with 500 and QRPp so lets see what can be done on 137.7

 

I will be QRSS1= 0 on 137.7 later this evening, though if last night is anything to go by then all I’ll= be doing is drowning in the static!

 

 

 

 

With best regards=

 

 

Jim

 

 

Dr. James Cowbu= rn G7NKS

E james.cowburn@virgin.net

 

The information= transmitted is intended only for the person to whom it is addressed and may contain confidential and/or pri= vileged material. If you are not the intended recipient, you are hereby notifi= ed that you must not read this message.
Any review, retransmission, dissemination or other use of, or taking= of any action in reliance upon, this information by persons or entities other= than the intended recipient is prohibited.  Consequently, this email is no= t intended to be contractually binding.
If you received this in error, please contact the sender, return the= message as well as its attachments and delete the whole from any computer.=

From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksh= eep.org] On Behalf Of R= oger Lapthorn
Sent: 18 July 2010 19:0= 9
To: rsgb_lf_group@black= sheep.org
Subject: Re: LF: 136.96= kHz testing

 

Thank you Gary.=

Yes, I hope to give 136kHz a good go considering my small garden and= QRP leanings. Last autumn and winter I surprised myself (and others) by ac= hieving credible results on 500kHz with an ultra-simple QRP station. It will= be tougher on 136kHz certainly, but I start with low expectations that, with some perseverance, may be exceeded.

Next on the cards is the transverter design and build. There are plent= y of good circuits to grab ideas from, plus I have some of my own. The efficient= small antenna will be the really big challenge.

73s
Roger G3XBM

 

On 18 July 2010 18:51, = Gary - G4WGT <g4wgt@tiscali.co.uk= > wrote:

Roger,

 

Congratulations for Txing a 136 kHz signal,= however small, don't let anyone put you off (no names mentioned) we all have to start somewhere= . My first 136 kHz Tx was 5 watts & an 80m inverted V antenna, I didn't= have any QSO's with that but it was a start.

 

You will make progress & I will look forw= ard to Rxing your signal in the near future & a possible QSO.

 

73

 

Gary - G4WGT.<= /span>

 

On 18 July 2010 17:14, Roger Lapthorn <rogerlaptho= rn@gmail.com> wrote:

This= is the very beginning of my journey onto 136kHz....

For anyone very very close to Burwell, Cambs, JO02DG, I'm putting a QRP 10wpm keyer-generat= ed CW message (later to be changed to QRSS3) out on 136.96kHz CW into my ear= th electrode antenna. Power from the TX is about 500mW, so ERP is just a= few microwatts at most. 

I'd appreciate reports, but be amazed to get any until I start to run= some more power into a real antenna.

73s
Roger G3XBM


--
http://g3= xbm-qrp.blogspot.com/
http://www.g3xbm.= co.uk
http:/= /www.youtube.com/user/g3xbm
G3XBM    GQRP 1678      ISWL G11088

 




--
http://g3xbm-qrp.blogspot.c= om/
http://www.g3xbm.co.uk
http://www.youtube.com/u= ser/g3xbm
G3XBM    GQRP 1678      ISWL G11088

------=_NextPart_000_02C7_01CB26B2.4CE9DC60--