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=-2.4 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, 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 t7MGCIqc019007 for ; Sat, 22 Aug 2015 18:12:18 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ZTBLm-0006c3-71 for rs_out_1@blacksheep.org; Sat, 22 Aug 2015 17:08:58 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ZTBLl-0006bu-Ru for rsgb_lf_group@blacksheep.org; Sat, 22 Aug 2015 17:08:57 +0100 Received: from omr-a013e.mx.aol.com ([204.29.186.60] helo=omr-a013.mx.aol.com) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.86) (envelope-from ) id 1ZTBKi-0005m2-Gb for rsgb_lf_group@blacksheep.org; Sat, 22 Aug 2015 17:08:56 +0100 Received: from mtaout-maa02.mx.aol.com (mtaout-maa02.mx.aol.com [172.26.222.142]) by omr-a013.mx.aol.com (Outbound Mail Relay) with ESMTP id 64A603800090 for ; Sat, 22 Aug 2015 12:07:39 -0400 (EDT) Received: from White (ipb21bed2d.dynamic.kabel-deutschland.de [178.27.237.45]) by mtaout-maa02.mx.aol.com (MUA/Third Party Client Interface) with ESMTPA id 976F23800009E for ; Sat, 22 Aug 2015 12:07:36 -0400 (EDT) Message-ID: <7E0C3B8C81574BB3B57589D478E1C624@White> From: "Markus Vester" To: References: <0LbuCq-1Z0UCd0iGK-00jKxe@mail.gmx.com> <55D718E5.8040508@posteo.de> <0FB4BC4D-1000-44F8-8855-C4B1B19CDDE8@talktalk.net> <4A6A0C74F3624CCC93FC660782555B89@PCFausto> Date: Sat, 22 Aug 2015 18:07:38 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 12.0.1606 X-MimeOLE: Produced By Microsoft MimeOLE V12.0.1606 x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1440259659; bh=Scs/ljtU30F9uMqJgyfGJvjtOHvgSIUeQdPZSrIhodc=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=8QriZlFUcPMwDYnMYW/cBN0ZZf66m6kKXxGvkL/NpL1KEHcrJde0/GDZ7h6fw3F2N 1xZxpiKgkkf4zhVhi7Vj0q3daDK7XsuCyg6cjy12/kP9TmLlaFPXQpeMaULuL2pFxb hBN8bCq5sMYw++UjXU7D18DK0CIPFDumTDTTUP5I= x-aol-sid: 3039ac1ade8e55d89e486bcd X-AOL-IP: 178.27.237.45 X-HELO-Warning: Remote host 204.29.186.60 (omr-a013e.mx.aol.com) used invalid HELO/EHLO omr-a013.mx.aol.com - verification failed X-Scan-Signature: 96c1546db5321e0e52b4c66d17932f07 Subject: Re: LF: Re: Band is open to VK! Content-Type: multipart/alternative; boundary="----=_NextPart_000_000A_01D0DD05.6E2EA4F0" 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: 3942 Dies ist eine mehrteilige Nachricht im MIME-Format. ------=_NextPart_000_000A_01D0DD05.6E2EA4F0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Fausto, LF, >> do not forget that in 1901 Guglielmo Marconi received a signal across = the Atlantic at a frequency around 500 kHz=20 ...did he really? I think there is some doubt around this story. With a = coherer, it would be very hard to prove the difference between receiving = a signal consisting of just three dots, and false triggering by random = statics. Considering a situation where a success was badly needed, the = reception may well have been the result of wishful thinking. http://www.antiquewireless.org/uploads/1/6/1/2/16129770/45-did_marconi_re= ceive_transatlantic_radio_signals_in_1901.pdf http://www.antiquewireless.org/uploads/1/6/1/2/16129770/46-did_marconi_re= ceive_transatlantic_radio_signals_in_1901.pdf Today we'd simply say "show us the screenshot" ;-) Best 73, Markus From: Fausto Coletti=20 Sent: Friday, August 21, 2015 9:59 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: Re: Band is open to VK! :-)) I have a 8 motor drone but can fly only 20 minutes with one Kg = payload.=20 A kite or baloon is better.=20 Seriously speaking, the difficulties are very big, as rightly says = Stefan 160 meters band, has a very different behavior but, do not forget = that in 1901 Guglielmo Marconi received a signal across the Atlantic at = a frequency around 500 kHz and with a receiver that in comparison with = those of today was a tack. Ok were "only" 3500 Km.=20 Today what are we doing more with our ultramodern equipment?=20 Today we have SDR, filters, DSP, noise reducer, Marconi at Signal Hill = had a drop of mercury.=20 Today obtain a considerable power is relatively easy and inexpensive,=20 114 years ago there were only Ruhmkorff coils then, how much power was = actually radiated=20 no one ever taken the trouble to measure it.=20 But as they did then my compatriot to get those great results: trying, = trying and trying again trying to improve something every day.=20 The important thing is to think that nothing is impossible, maybe = improbable but not impossible.=20 Tonight I bored with the history of telegraphy...:-)=20 73, Fausto IK4NMF=20 ... ------=_NextPart_000_000A_01D0DD05.6E2EA4F0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Fausto, = LF,
 
>> do not=20 forget that in 1901 Guglielmo Marconi received = a signal across the Atlantic at a=20 frequency around 500 kHz=20
 
...did he really? I = think there=20 is some doubt around this story. With a coherer, it would be very hard=20 to prove the difference between receiving a signal consisting = of just=20 three dots, and false triggering by random statics. Considering a = situation=20 where a success was badly needed, the reception may well = have=20 been the result of wishful thinking.
 
http://www.antique= wireless.org/uploads/1/6/1/2/16129770/45-did_marconi_receive_transatlanti= c_radio_signals_in_1901.pdf
http://www.antique= wireless.org/uploads/1/6/1/2/16129770/46-did_marconi_receive_transatlanti= c_radio_signals_in_1901.pdf
 
Today=20 we'd simply say "show us the screenshot" ;-)
 
Best = 73,
Markus
 

Sent: Friday, August 21, 2015 9:59 PM
To: rsgb_lf_group@blacksheep.org= =20
Subject: Re: LF: Re: Band is open to VK!

:-)) I have a 8 motor drone but can fly = only 20 minutes with one Kg payload.
A kite or baloon is better. =
Seriously=20 speaking, the difficulties = are very big,=20 as rightly says Stefan 160 meters=20 band, has a = very different behavior but, do not forget = that=20 in 1901 Guglielmo = Marconi received a signal = across the Atlantic at a frequency = around 500 kHz and with a receiver that in comparison with=20 those of today was a tack. = Ok were "only" 3500 Km.=20
Today what are we doing more=20 with our ultramodern = equipment?
Today we have SDR, = filters, DSP,=20 noise reducer, Marconi at = Signal=20 Hill had a drop of=20 mercury.
Today obtain=20 a considerable power is=20 relatively easy and inexpensive,=20
114 years ago there were = only Ruhmkorff coils then, how much = power was actually radiated
no one ever taken the = trouble=20 to measure it.=20
But as they = did then my compatriot to get those great results: = trying, trying and trying again=20 trying to improve=20 something every day.=20
The important thing = is to think that nothing is=20 impossible, maybe improbable but = not impossible.=20
Tonight I=20 bored with the history = of telegraphy...:-)=20
&nbs= p;
73, Fausto IK4NMF=20
...
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