Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dh04.r1000.mx.aol.com (Internet Inbound) with ESMTP id CE96838000321; Wed, 26 Dec 2012 18:36:33 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1To0VO-0005rt-M6 for rs_out_1@blacksheep.org; Wed, 26 Dec 2012 23:35:22 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1To0VO-0005rk-4x for rsgb_lf_group@blacksheep.org; Wed, 26 Dec 2012 23:35:22 +0000 Received: from mail-ie0-f177.google.com ([209.85.223.177]) by relay1.thorcom.net with esmtps (TLSv1:RC4-SHA:128) (Exim 4.77) (envelope-from ) id 1To0VL-0005Na-S6 for rsgb_lf_group@blacksheep.org; Wed, 26 Dec 2012 23:35:21 +0000 Received: by mail-ie0-f177.google.com with SMTP id k13so11081537iea.36 for ; Wed, 26 Dec 2012 15:34:57 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:x-originating-ip:in-reply-to:references:date :message-id:subject:from:to:content-type:x-gm-message-state; bh=lQHG5o5k3c5awTMH6K9qKwB1LKSMW4jS8iie3X6TweY=; b=Ew2kJrHir69FXqYhgYf0owsyeVptCXJMvydTvVfX339FLJhbDoZXX0sKC9voW1Tddl BGr0kR76P6W9DqY+kOgVoHohVCXUuUP8FVEE825y/H2iyg8FXbwfSrC92+9/VMqK7RCw KPPb6+tRXkrZ7LOzytnWlEtMf53kdLgPFhZFC5kUU8osLkoR8xT8TCyGgSsGjcvwxoT9 e22MWu+f3//QTqZyWpKLWYD+vDqWeVqJaFTAhCbMKvs3yMQkNH/zWx7zlB3NL8Q/y7cl xGnuZZ1UC4w/Nsx4qNwWwAFhozOEc9rWdMXAfE09kKmSucfrtMGz5rbZz4qICvzN4Sm0 S3dg== MIME-Version: 1.0 Received: by 10.50.5.236 with SMTP id v12mr25582897igv.6.1356564897497; Wed, 26 Dec 2012 15:34:57 -0800 (PST) Received: by 10.50.154.102 with HTTP; Wed, 26 Dec 2012 15:34:57 -0800 (PST) X-Originating-IP: [80.195.207.132] In-Reply-To: References: <3B3F364C54F24112B0098F814D576658@MPC> <248E35A16F4D4A91851CDC0AE9DDAEC4@MPC> <1356349871.66247.YahooMailNeo@web133204.mail.ir2.yahoo.com> Date: Wed, 26 Dec 2012 23:34:57 +0000 Message-ID: From: DAVE PICK To: rsgb_lf_group@blacksheep.org X-Gm-Message-State: ALoCoQm2DwmrTKsUxOiNWkpLwfieqF5lKDcEQU/Sno96RDgasFtuhN7F6w3+ibl1SGqlmGlH4kX8 X-Spam-Score: -0.7 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Standing waves? On a matched feeder? This was mainly at Wooferton in the early seventies. Dave. On 24 December 2012 14:35, Mark wrote: [...] Content analysis details: (-0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.223.177 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 29f208b223fe7a2cb359508e38e2ea2d Subject: Re: LF: Unusual radio mast video Ukraine ?? Content-Type: multipart/alternative; boundary=e89a8f646e73d483a004d1c9e062 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-sid: 3039ac1d411850db8a013ea1 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --e89a8f646e73d483a004d1c9e062 Content-Type: text/plain; charset=ISO-8859-1 Standing waves? On a matched feeder? This was mainly at Wooferton in the early seventies. Dave. On 24 December 2012 14:35, Mark wrote: > ** > The open wire feeders are balanced feeders , the bird acts as a > capacitance on one side and the result is that a small amount of the > incident power is diverted. The worst part is that sometimes the birds > survived, but left their feet on the feeder. > Bear in mind that these shortwave feeders are connected to senders > running from 100kW to 300kW depending on era. > Arcs in the antenna field were not uncommon during my days on shortwave. > We dreaded stubble burning season large lumps of ash played havoc with > open wire systems > > Dave, I wonder where you worked? I had spells at Daventry and Wooferton > and some project work at Rampisham and Skelton > > > > *From:* M0FMT > *Sent:* Monday, December 24, 2012 11:51 AM > *To:* rsgb_lf_group@blacksheep.org > *Subject:* Re: LF: Unusual radio mast video Ukraine ?? > > Hi Dave > > Must have had the bad luck to step on a voltage peak of the standing wave? > > 73 es GL, HNY es MX Pete M0FMT IO91UX > > *From:* DAVE PICK > *To:* rsgb_lf_group@blacksheep.org > *Sent:* Monday, 24 December 2012, 10:32 > *Subject:* Re: LF: Unusual radio mast video Ukraine ?? > > I used to work on short-wave broadcast stations using open wire feeders. > When a bird alighted on one feeder a huge arc would be struck and I could > plainly hear the audio from the service. Once the transmitter had tripped > and the smoke cleared, all that remained of the bird was its feet stuck to > the wire... > > Merry Christmas! > > Dave G3YXM > > > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2013.0.2805 / Virus Database: 2637/5981 - Release Date: 12/23/12 > > --e89a8f646e73d483a004d1c9e062 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Standing waves? On a matched feeder?
This was mainly at Wooferton in the= early seventies.

Dave.

On 24 Dece= mber 2012 14:35, Mark <markhughes1@blueyonder.co.uk> wrote:
The open wire feeders are balanced feeders , th= e bird=20 acts as a capacitance on one side and the result is that a small amount of = the=20 incident power is diverted.=A0 The worst part is that sometimes the birds= =20 survived, but left their feet on the feeder.
=A0Bear in mind that these shortwave feeders ar= e=20 connected to senders running from 100kW to 300kW depending on era.=A0=20
Arcs in the antenna field were not uncommon dur= ing my=20 days on shortwave.=A0 We=A0dreaded stubble burning season=A0 large=20 lumps of ash played havoc with open wire systems
=A0
Dave, I wonder where you worked? I had spells a= t=20 Daventry and Wooferton and some project work at Rampisham and=20 Skelton
=A0
=A0

From: M0FMT
Sent: Monday, December 24, 2012 11:51 AM
Subject: Re: LF: Unusual radio mast video Ukraine=20 ??

Hi Dave
=A0
Must have had the bad luck to step on a voltage peak of the stan= ding=20 wave?=A0
73 es GL, HNY es MX=A0Pete M0FMT IO91UX
From: DAVE PICK <daveyxm@virginme= dia.com>
To: rsgb_lf_group@= blacksheep.org=20
Sent: Monday, 24 Decem= ber=20 2012, 10:32
Subject: Re= : LF:=20 Unusual radio mast video Ukraine ??

=20
I used to work on short-wave broadcast stations using=20 open wire feeders. When a bird alighted on one feeder a huge arc would be= =20 struck and I could plainly hear the audio from the service. Once the=20 transmitter had tripped and the smoke cleared, all that remained of the b= ird=20 was its feet stuck to the wire...

Merry Christmas!

Dave=20 G3YXM


No virus fo= und in this=20 message.
Checked by AVG - www.avg.com
Version: 2013.0.2805 / Virus=20 Database: 2637/5981 - Release Date: 12/23/12


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