Return-Path: Received: (qmail 31694 invoked from network); 17 Mar 2004 09:09:03 -0000 Received: from unknown (HELO ptb-mxscan03.plus.net) (212.159.14.237) by ptb-mailstore03.plus.net with SMTP; 17 Mar 2004 09:09:03 -0000 Received: (qmail 92644 invoked from network); 17 Mar 2004 09:09:02 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore03.plus.net (212.159.14.217) by ptb-mxscan03.plus.net with SMTP; 17 Mar 2004 09:09:01 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore03.plus.net with esmtp (Exim) id 1B3X2q-000Ns0-R4 for dave@picks.force9.co.uk; Wed, 17 Mar 2004 09:09:00 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1B3X2E-0000Zh-LN for rs_out_1@blacksheep.org; Wed, 17 Mar 2004 09:08:22 +0000 Received: from [213.232.95.59] (helo=relay.salmark.net) by post.thorcom.com with esmtp (Exim 4.14) id 1B3X2D-0000ZY-Qy for rsgb_lf_group@blacksheep.org; Wed, 17 Mar 2004 09:08:21 +0000 Received: from [62.41.128.11] (helo=smtp.v21.co.uk) by relay.salmark.net with esmtp (Exim 4.24) id 1B3ewA-0001UQ-8b for rsgb_lf_group@blacksheep.org; Wed, 17 Mar 2004 17:34:38 +0000 X-Fake-Domain: y6m8a2 Received: from y6m8a2 (host213-121-67-232.surfport24.v21.co.uk [213.121.67.232]) by kaliber.flexi-surf.co.uk (8.10.2/8.10.2) with SMTP id i2H97jM18994 for ; Wed, 17 Mar 2004 09:07:46 GMT X-Bad-Message-ID: no DNS (y6m8a2) Message-ID: <000701c40bff$ad8ecf00$e84379d5@y6m8a2> From: "Frederick John Armstrong" To: rsgb_lf_group@blacksheep.org References: Date: Wed, 17 Mar 2004 08:32:42 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2314.1300 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300 X-Spam-Score: 0.1 (/) X-Spam-Report: 0.1 RCVD_IN_SORBS RBL: SORBS: sender is listed in SORBS [213.121.67.232 listed in dnsbl.sorbs.net] _ Subject: LF: Re: 136 Antenna Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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-PN-SPAMFiltered: yes X-Spam-Rating: 2 ----- Original Message ----- From: G4WGT - Gary To: Rsgb_Lf_Group Sent: Monday, March 15, 2004 9:50 PM Subject: LF: 136 Antenna > > Hi All at LF, > > Still making improvements to the antenna system here, just installed 4 > additional earth rods & this showed about 10% increase in antenna current > (can't give you an accurate current measurement at the moment as I do not > have a calibrated meter, I'm working on that as well). I have been > monitoring my own signals on Dave's (G3YXM) grabber & last night was showing > "dog boning" on my QRS3 tests, thats the strongest I've seen it. G0MRF > transmitter running at 322 watts DC input. > > The biggest let down in my station is the Yaesu FT747GX which although is a > good reciever at LF the thing drifts a lot with room temperature > fluctuations even though I fitted a TCXO unit recently & although it did > make a considerable improvement to stability, on long dot lengths the signal > can almost drift off the Argo display. > > I think I have finished all the DIY jobs my wife lined up for me so I hope > to get serious on 136 soon. > > 73 > > Gary - G4WGT > Hi Gary, Like you I am conducting tests and modifications to my 136kHz antenna. Could you please tell me how to make use of the G3YXM grabber? I call frequently on 136 but get no replies. I wonder if you would be interested in attempting to make a qso with me with a view to getting reports from one another. Reports from any of the lf group would also be appreciated. Thank you and regards from John, G3JRL Weymouth.