Return-Path: X-Spam-DCC: paranoid 1290; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_30_40,HTML_MESSAGE autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id tBUG1eWG021658 for ; Wed, 30 Dec 2015 17:01:40 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1aEJ6r-00067b-Ki for rs_out_1@blacksheep.org; Wed, 30 Dec 2015 15:56:21 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1aEJ6r-00067S-11 for rsgb_lf_group@blacksheep.org; Wed, 30 Dec 2015 15:56:21 +0000 Received: from mail-wm0-f50.google.com ([74.125.82.50]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.86) (envelope-from ) id 1aEJ5m-0001iG-Oz for rsgb_lf_group@blacksheep.org; Wed, 30 Dec 2015 15:56:19 +0000 Received: by mail-wm0-f50.google.com with SMTP id f206so41088034wmf.0 for ; Wed, 30 Dec 2015 07:54:59 -0800 (PST) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=VKA5VmJuEc32OShB60DsLUnGLjvHCwNtIgUohLmBTPU=; b=JhhClodDXKluirZIXLWLATmqR+TLNcyyKFNOpVCUDX6PkPdlGlUuMP2r8CW+Bo4/M0 yOa8aHmj5K+7d1sHQ21Q+h7/cHwSD2f9HxitZr+qzdr1xO3IfatwBysaAvjDBfZrDiov xTYs9CL7jvGW5WSwdcngiEZUgQKDm4fCXnIt4VX2ifY6BNlAx6QBnJ7jBM4fHkcvWZq7 IJQZbSb/qxla/wegouLET94TYCESjiGYiO/8z7BcDGyd1JcQrraYQneF0T/izwc+Mtsm pKRAvRCjzeUBkkRi8T9lKpuG3tMfrGGisla3vLSh+PbFOH6wqBQc7sIKJHbWXtwkOJ7C vYgQ== MIME-Version: 1.0 X-Received: by 10.28.51.135 with SMTP id z129mr71779744wmz.19.1451490893746; Wed, 30 Dec 2015 07:54:53 -0800 (PST) Received: by 10.28.150.6 with HTTP; Wed, 30 Dec 2015 07:54:53 -0800 (PST) In-Reply-To: References: Date: Wed, 30 Dec 2015 15:54:53 +0000 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org X-Scan-Signature: 2bd5d3c3e4b1ac0d4c95b192e62a82a2 Subject: Re: LF: RE: Re: Variometer in the shack Content-Type: multipart/alternative; boundary=001a1144424e1dd93105281f8f08 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-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 6013 --001a1144424e1dd93105281f8f08 Content-Type: text/plain; charset=UTF-8 Indeed, http://www.g4jnt.com/Melted_ATU_Cabin.JPG 'jnt On 30 December 2015 at 11:30, James Cowburn wrote: > Some even catch fire!!! > > > -----Original Message----- > From: owner-rsgb_lf_group@blacksheep.org > [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Gary - G4WGT > Sent: 29 December 2015 12:26 > To: rsgb_lf_group@blacksheep.org > Subject: LF: Re: Variometer in the shack > > Chris, > > I have my loading coil & variometer in a PVC garden tool store, they come > in > > all sizes. > > 73, Gary - G4WGT. > > > -----Original Message----- > From: Chris Wilson > Sent: Tuesday, December 29, 2015 11:41 AM > To: Dr. Wolf Ostwald > Subject: Re: LF: Variometer in the shack > > Hello Wolf, > > Sunday, December 20, 2015 > > > Thanks to all, with apologies for the delay in replying, hectic here! > I will find a waterproof means of having the variometer by the loading > coil, as opinion suggests having it in the shack is a bad idea. Plans > for 2016 are a better ground system, a dedicated LF antenna, as high > as I can get it, and an attempt at my full licence so I can get on MF > as well! I also have two 50V 60 Amp SMPS from big computer servers > that are isolated, and intend connecting them in series so my G3YXM > amp sees a full, regulated 100V on the FET's, rather than an > unregulated saggy, toroidal heating 100V dropping to 79V under load. > The toroidal mains transformer gets uncomfortably hot on QRSS > transmissions, and couldn't be run like that for long! > > > I would like to thank everyone for their patient help over this year, > and wish everyone a healthy and prosperous New Year. > > > > Best regards, > Chris 2E0ILY mailto:chris@chriswilson.tv > > My part time LF grabber is at http://www.chriswilson.tv/grabber.html > > > > HI ! > > past the variometer there is no 50 Ohms impedance, the stepup in voltage > > will be tremendous. The parallel capacitance of the coax will shunt a > > lot of the energy transported. > > Definitely the worse the more inductance has to be introduced. In my > > opinion its a no go. > > > 73 de wolf df2py > > > > --001a1144424e1dd93105281f8f08 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Indeed,

'jnt


<= div class=3D"gmail_quote">On 30 December 2015 at 11:30, James Cowburn <james.cowburn@virgin.net> wrote:
Some even catch fire!!!


-----Original Message-----
From: owner-rsgb_lf_g= roup@blacksheep.org
[mailto:owner-rsgb_lf= _group@blacksheep.org] On Behalf Of Gary - G4WGT
Sent: 29 December 2015 12:26
To: rsgb_lf_group@blackshee= p.org
Subject: LF: Re: Variometer in the shack

Chris,

I have my loading coil & variometer in a PVC garden tool store, they co= me in

all sizes.

73, Gary - G4WGT.


-----Original Message-----
From: Chris Wilson
Sent: Tuesday, December 29, 2015 11:41 AM
To: Dr. Wolf Ostwald
Subject: Re: LF: Variometer in the shack

Hello Wolf,

Sunday, December 20, 2015


Thanks to all, with apologies for the delay in replying, hectic here!
I will find a waterproof means of having the variometer by the loading
coil, as opinion suggests having it in the shack is a bad idea. Plans
for 2016 are a better ground system, a dedicated LF antenna, as high
as I can get it, and an attempt at my full licence so I can get on MF
as=C2=A0 well!=C2=A0 =C2=A0I=C2=A0 also have two 50V 60 Amp SMPS from big c= omputer servers
that=C2=A0 are=C2=A0 isolated, and intend connecting them in series so my G= 3YXM
amp=C2=A0 =C2=A0sees=C2=A0 =C2=A0a=C2=A0 =C2=A0full,=C2=A0 =C2=A0regulated= =C2=A0 100V=C2=A0 on the FET's, rather than an
unregulated=C2=A0 saggy,=C2=A0 toroidal heating 100V dropping to 79V under = load.
The=C2=A0 =C2=A0toroidal=C2=A0 mains=C2=A0 transformer=C2=A0 gets=C2=A0 unc= omfortably=C2=A0 hot=C2=A0 on=C2=A0 QRSS
transmissions, and couldn't be run like that for long!


I would like to thank everyone for their patient help over this year,
and wish everyone a healthy and prosperous New Year.



Best regards,
Chris=C2=A0 2E0ILY=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 mailto:chris@chriswilson.tv

My part time LF grabber is at http://www.chriswilson.tv/grabbe= r.html


> HI !
> past the variometer there is no 50 Ohms impedance, the stepup in volta= ge
> will be tremendous. The parallel capacitance of the coax will shunt a<= br> > lot of the energy transported.
> Definitely the worse the more inductance has to be introduced. In my > opinion its a no go.

> 73 de wolf=C2=A0 df2py




--001a1144424e1dd93105281f8f08--