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=-0.5 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_50_60,HTML_MESSAGE,RATWARE_GECKO_BUILD 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 u0VB462K030825 for ; Sun, 31 Jan 2016 12:04:06 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1aPpkJ-0003LE-KX for rs_out_1@blacksheep.org; Sun, 31 Jan 2016 11:00:43 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1aPpkJ-0003L5-9R for rsgb_lf_group@blacksheep.org; Sun, 31 Jan 2016 11:00:43 +0000 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.86) (envelope-from ) id 1aPpjS-0000Cq-Ug for rsgb_lf_group@blacksheep.org; Sun, 31 Jan 2016 11:00:42 +0000 Received: from dovecot03.posteo.de (dovecot03.posteo.de [172.16.0.13]) by mout01.posteo.de (Postfix) with ESMTPS id 7E23E20936 for ; Sun, 31 Jan 2016 11:59:33 +0100 (CET) Received: from mail.posteo.de (localhost [127.0.0.1]) by dovecot03.posteo.de (Postfix) with ESMTPSA id 3ptTts46x3z5vN0 for ; Sun, 31 Jan 2016 11:59:33 +0100 (CET) Message-ID: <56ADE915.9060605@posteo.de> Date: Sun, 31 Jan 2016 11:59:33 +0100 From: DK7FC User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: In-Reply-To: X-Scan-Signature: 611f9af8a0f6ba007b1ec6dce409caf4 Subject: Re: LF: MF powerful Beacon in Poland? Content-Type: multipart/alternative; boundary="------------040605080701070209060400" 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: RO X-Status: X-Keywords: X-UID: 6566 This is a multi-part message in MIME format. --------------040605080701070209060400 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Years ago, when i was young, i've done an experiment with a portable MF equipment which completely fits into a backpack, including battery, PA, antenna (TX antenna!) and measuring equipment as well as a netbook. I had CW QSOs with a horizontal dipole just 4m above ground in the forest using 50W from a small by powered by a 7 Ah accu. These QSOs were with DF6NM and DL4YHF. And it was July in the late afternoon! https://dl.dropboxusercontent.com/u/19882028/MF/A%20full%20size%20dipole%20for%20the%20630%20m%20band.pdf 73, Stefan PS: Ignore the theory, just do it! Am 31.01.2016 11:39, schrieb Vincent Stallbaum: > I think DJ0ABR and DH5RAE are running fullsize dipoles in 630m WSPR. > They have big signals. So give it a try. > Maybe you can install two antennas so we can compare vert. and > horizontal polarisation. That would be really exciting. > > 73 > Vinny > > > > Von meinem Samsung Gerät gesendet. > > > -------- Ursprüngliche Nachricht -------- > Von: Claudio Pozzi > Datum: 31.01.2016 11:11 (GMT+01:00) > An: rsgb_lf_group@blacksheep.org > Betreff: Re: LF: MF powerful Beacon in Poland? > > On Saturday, January 30, 2016 00:05:28 you wrote: > > > Hi Markus, > > > I live in a 15 floor building, on top of which there is a 30 meter > mast, and > > > my building - by Warsaw standards - is "small". (I set a QRP world > record > > > in 2005 from such a building on 3.5mhz) > > Many amateurs have access to far > > > higher objects (: > > Thus to hang a dipole on such a building would not be > > > expensive and to mount a 1w TX at the dipole center point would make > beacon > > > construction simple. My concept is to have a "real" beacon that > would act > > > as a marker of propagation, but when I look at WSPR I wonder if such an > > > idea is outdated and the era of traditional beacons is over? Richard > SO5GB > > > > > > > In MF an LF and VLF the vertical polarization is a must for > propagation, so think at a vertical dipole. > > Claudio ik2pii > > > > > ---- > ZE-Light e ZE-Pro: servizi zimbra per caselle con dominio email.it, > per tutti i dettagli clicca qui > > > Sponsor: > Soluzioni di email hosting per tutte le esigenze: dalle caselle > gratuite a quelle professionali su piattaforma Zimbra, da quelle su > proprio dominio a quelle certificate PEC. Confronta le soluzioni > Clicca qui > --------------040605080701070209060400 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Years ago, when i was young, i've done an experiment with a portable MF equipment which completely fits into a backpack, including battery, PA, antenna (TX antenna!) and measuring equipment as well as a netbook.
I had CW QSOs with a horizontal dipole just 4m above ground in the forest using 50W from a small by powered by a 7 Ah accu. These QSOs were with DF6NM and DL4YHF. And it was July in the late afternoon!

https://dl.dropboxusercontent.com/u/19882028/MF/A%20full%20size%20dipole%20for%20the%20630%20m%20band.pdf

73, Stefan

PS: Ignore the theory, just do it!

Am 31.01.2016 11:39, schrieb Vincent Stallbaum:
I think DJ0ABR and DH5RAE are running fullsize dipoles in 630m WSPR. They have big signals. So give it a try. 
Maybe you can install two antennas so we can compare vert. and horizontal polarisation. That would be really exciting.

73
Vinny



Von meinem Samsung Gerät gesendet.


-------- Ursprüngliche Nachricht --------
Von: Claudio Pozzi <smtp01@email.it>
Datum: 31.01.2016 11:11 (GMT+01:00)
An: rsgb_lf_group@blacksheep.org
Betreff: Re: LF: MF powerful Beacon in Poland?

On Saturday, January 30, 2016 00:05:28 you wrote:

> Hi Markus,

> I live in a 15 floor building, on top of which there is a 30 meter mast, and

> my building - by Warsaw standards - is "small". (I set a QRP world record

> in 2005 from such a building on 3.5mhz)

Many amateurs have access to far

> higher objects (:

Thus to hang a dipole on such a building would not be

> expensive and to mount a 1w TX at the dipole center point would make beacon

> construction simple. My concept is to have a "real" beacon that would act

> as a marker of propagation, but when I look at WSPR I wonder if such an

> idea is outdated and the era of traditional beacons is over? Richard SO5GB

>

 


In MF an LF and VLF the vertical polarization is a must for propagation, so think at a vertical dipole.

 

 

Claudio ik2pii

 

 




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