Return-Path: X-Spam-DCC: paranoid 1233; 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=-2.2 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_50_60,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 t4SDwxpe024019 for ; Thu, 28 May 2015 15:58:59 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1YxyEe-0002jA-F2 for rs_out_1@blacksheep.org; Thu, 28 May 2015 14:52:36 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1YxyEd-0002j1-Uh for rsgb_lf_group@blacksheep.org; Thu, 28 May 2015 14:52:35 +0100 Received: from mail-ob0-f169.google.com ([209.85.214.169]) by relay1.thorcom.net with esmtps (TLSv1.2:AES128-GCM-SHA256:128) (Exim 4.85) (envelope-from ) id 1YxyEa-0001jS-42 for rsgb_lf_group@blacksheep.org; Thu, 28 May 2015 14:52:34 +0100 Received: by obbnx5 with SMTP id nx5so33024375obb.0 for ; Thu, 28 May 2015 06:52:30 -0700 (PDT) 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=jhou4OiqjYmwMdiFoFv7KgFqvKlzsZ67huLZdrDAaZM=; b=wNxDOU5OIz75oFSR0eSCkrS6yET6Y4oAZdZ4n586yIzfX3mpbx4JQM189fbu2A5801 o4qP/zHhkIroylWX9gDPuyo2mAxkYvhddHMStQy7XhokEm0OKQQpDoYovRXx1tS1fwYF iEOX1DoTDXVh2si+MKM8jNsPypUw3fD+704Ks4Ai4BrkNfB3tXueIM9LFTO6amd/pgUk 1nVa6OyvmMtKDIl6OgBJoWfWy4EJuNJimTV0G0U5AhPlLQ/JBbLHHtQWmWC+CCh33tL0 hEOMnjKSKQCQYpCrFitOR2cqivDVB0iTUkFD1OnS5e78UHRnm8l1NBlzOKSZPI/aMGyc Q9Jg== MIME-Version: 1.0 X-Received: by 10.202.45.199 with SMTP id t190mr2433596oit.6.1432821149719; Thu, 28 May 2015 06:52:29 -0700 (PDT) Received: by 10.60.8.97 with HTTP; Thu, 28 May 2015 06:52:29 -0700 (PDT) In-Reply-To: References: <394FEA4DA5AA4542828CB5F63AEE2C88@F6CNIToshiba> <474231660.434744.1432735092592.JavaMail.yahoo@mail.yahoo.com> <556640CA.1080101@posteo.de> <5566EDC7.2010508@tele2.se> Date: Thu, 28 May 2015 09:52:29 -0400 Message-ID: From: Warren Ziegler To: "rsgb_lf_group@blacksheep.org" X-Scan-Signature: 2015a9c9c70c0326c96b00c8a41f50f5 Subject: Re: LF: De F6CNI : MF mobile ? Content-Type: multipart/alternative; boundary=001a11379242a7f788051724abaa 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: 3334 --001a11379242a7f788051724abaa Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I was also intrigued by the idea of 475kc mobile and did some calculations. I came to the conclusion that such a very big loading coil would be needed that one would have to take care to avoid the situation where the self resonte frequency was below the operating frequency! Perhaps a basket weave coil would be necessary. 73 Warren On Thursday, May 28, 2015, Guy=C3=A9 Andr=C3=A9 = wrote: > Just for info to Johan and Stefan : > > WOW ! Yes I rember the experiments of Dave G3YXM. My first QSO with him o= n > 2 way or x-band 137 CW was 1999/05/15, now 16 years ago ! After I had som= e > others including a cross band one at 2000/12/30 when he was QSY in GM. > > Also, I was listening at his signal when he was trying his mobile antenna= . > He made a few successfull QSO but at low distance, and nothing heard on m= y > side at 500 km ! HI. It was true mobile... The very old users of the LF > band remember that. HI ! > > But it was easy, because in the years 1999 / 2003, when I was QRV CW on L= F > (250 Watts and a large Inv L), each saturday morning after a CQ we got 5 = to > 10 QSO. The activity was important. Now try that, and perhaps you get one > QSO per month ? HI. > > 73 de Andy =E2=80=93 F6CNI =E2=80=93 JN19QB > > *From:* Johan Bodin > *Sent:* Thursday, May 28, 2015 12:28 PM > *To:* rsgb_lf_group@blacksheep.org > > *Subject:* Re: LF: MF mobile ? > > Hi Stefan, > > G3YXM was mobile on 136kHz many years ago. See > http://www.wireless.org.uk/mobile.htm , scroll down to middle of page. > > If it is possible on 136kHz then it should be a piece of cake on 475 :-) > > 73 > Johan SM6LKM > > DK7FC wrote: > > Hmm, i find someone should do a real mobile (mobile-mobile, with a > velocity > 0) experiment. > > > > > ------------------------------ > [image: Avast logo] > > L'absence de virus dans ce courrier =C3=A9lectronique a =C3=A9t=C3=A9 v= =C3=A9rifi=C3=A9e par le > logiciel antivirus Avast. > www.avast.com > > --=20 73 Warren K2ORS WD2XGJ WD2XSH/23 WE2XEB/2 WE2XGR/1 --001a11379242a7f788051724abaa Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I was also intrigued by the idea of 475kc mobile and did some calculations.=
I came to the conclusion that such a very big loading coil would be ne= eded that one would have to take care to avoid the situation where the self= resonte frequency was below the operating frequency! Perhaps a basket weav= e coil would be necessary.

73 Warren


On Thursday, May 28, 2015, Guy=C3=A9 Andr=C3=A9 <andre.guye1@aliceadsl.fr> w= rote:
Just for info to Johan and Stefan :
=C2=A0
WOW ! Yes I rember the experiments of Dave G3YXM. My= first=20 QSO with him on 2 way or x-band 137 CW was 1999/05/15, now 16 years ago ! A= fter=20 I had some others including a cross band one at 2000/12/30 when he was QSY = in=20 GM.
=C2=A0
Also, I was listening at his signal when he was tryi= ng his=20 mobile antenna. He made a few successfull QSO but at low distance, and noth= ing=20 heard on my side at 500 km ! HI. It was true mobile... The very old users o= f the=20 LF band remember that. HI !
=C2=A0
But it was easy, because in the years 1999 / 2003, w= hen I was=20 QRV CW on LF (250 Watts and a large Inv L), each saturday morning after a C= Q we=20 got 5 to 10 QSO. The activity was important. Now try that, and perhaps you = get=20 one QSO per month ? HI.
=C2=A0
73 de Andy =E2=80=93 F6CNI =E2=80=93 JN19QB
= =C2=A0
Sent: Thursday, May 28, 2015 12:28 PM
Subject: Re: LF: MF mobile ?
=C2=A0
= Hi=20 Stefan,

G3YXM was mobile on 136kHz many years ago. See http://www.wireless.= org.uk/mobile.htm=20 , scroll down to middle of page.

If it is possible on 136kHz then it= =20 should be a piece of cake on 475 :-)

73
Johan SM6LKM

DK7FC wrote:
Hmm, i find=20 someone should do a real mobile (mobile-mobile, with a velocity > 0)= =20 experiment.



3D"Avast

L'absence de virus dans ce courrier =C3=A9lectronique a =C3=A9t=C3= =A9 v=C3=A9rifi=C3=A9e par le logiciel antivirus Avast.
www.avast.com




--
73 Warren K2ORS
=C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 WD2XGJ
=C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 WD2XSH/23
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 WE2XEB/2
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 WE2XGR/1

=C2=A0
--001a11379242a7f788051724abaa--