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 t7MHFwuY019111 for ; Sat, 22 Aug 2015 19:15:58 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ZTCLP-00070B-T9 for rs_out_1@blacksheep.org; Sat, 22 Aug 2015 18:12:39 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ZTCLP-000702-EN for rsgb_lf_group@blacksheep.org; Sat, 22 Aug 2015 18:12:39 +0100 Received: from smtp206.alice.it ([82.57.200.102]) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1ZTCKO-0005zb-K4 for rsgb_lf_group@blacksheep.org; Sat, 22 Aug 2015 18:12:38 +0100 Received: from PCFausto (87.16.53.248) by smtp206.alice.it (8.6.060.28) id 55BB65F90462A881 for rsgb_lf_group@blacksheep.org; Sat, 22 Aug 2015 19:11:20 +0200 Message-ID: From: "Fausto Coletti" To: References: <0LbuCq-1Z0UCd0iGK-00jKxe@mail.gmx.com> <55D718E5.8040508@posteo.de> <0FB4BC4D-1000-44F8-8855-C4B1B19CDDE8@talktalk.net> <4A6A0C74F3624CCC93FC660782555B89@PCFausto> <7E0C3B8C81574BB3B57589D478E1C624@White> In-Reply-To: <7E0C3B8C81574BB3B57589D478E1C624@White> Date: Sat, 22 Aug 2015 19:11:16 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6002.18197 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18463 X-Scan-Signature: a3fb7b6a9f6d51087b0e6a8a8c0d161f Subject: Re: LF: Re: Band is open to VK! Content-Type: multipart/alternative; boundary="----=_NextPart_000_0032_01D0DD0E.51E7C9D0" 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: 3945 This is a multi-part message in MIME format. ------=_NextPart_000_0032_01D0DD0E.51E7C9D0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I know these documents and I know also how many detractors there have = been and there are against the work of Guglielmo Marconi.=20 Now I'm not here to say if in December 1901 Marconi succeeded or not in = his attempt, I'm convinced of it, the fact is that a year later=20 he successfully repeated the experiment with the same equipment, in = front of numerous witnesses and people sent by his opponents.=20 On this there is no doubt.=20 As there is no doubt that all those who were opposed to Marconi claiming = to be able to transmit a telegraphic signal before him,=20 when Marconi transmitted and receive to two or three hundred kilometers = away, they were unable to to receive a signal to a hundred meters.=20 Here a documentary made by a German broadcaster few years ago:=20 http://www.zdf.de/ZDFmediathek/beitrag/video/1211142/Das-unsichtbare-Netz= #/beitrag/video/1211142/Das-unsichtbare-Netz=20 This is one of the best documentaries I have ever seen and probably the = closest to historical truth.=20 @ Stefan DK7FC=20 It is true that in 1901 there was the noise created by the man who today = is present but, the noise generated by Mother Nature was also at that = time.=20 Now I do not know what could be the relationship between the sensitivity = of Marconi receiver in the 1901 environment, and a modern receiver with = the noise of today.=20 I recently tested some nickel powder Coherer for a historical events = which we are organizing for next month and I assure you that a = carpenter's tack is more sensitive :-)=20 73, Fausto=20 ----- Original Message -----=20 From: Markus Vester=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Saturday, August 22, 2015 6:07 PM Subject: Re: LF: Re: Band is open to VK! 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 ... Nessun virus nel messaggio. Controllato da AVG - www.avg.com Versione: 2015.0.6125 / Database dei virus: 4392/10484 - Data di = rilascio: 22/08/2015 ------=_NextPart_000_0032_01D0DD0E.51E7C9D0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I know = these documents and I know also how many detractors there have = been=20 and there are against the = work=20 of Guglielmo Marconi.
Now=20 I'm not here to say = if in December=20 1901 Marconi succeeded=20 or not in his=20 attempt, I'm convinced of it, the fact is = that a year later =
he=20 successfully repeated the=20 experiment with the = same=20 equipment, in front of = numerous witnesses and people sent=20 by his opponents.=20
On=20 this there is no doubt.=20
As there is no doubt that all those who were=20 opposed to Marconi claiming to=20 be able to transmit a telegraphic signal before him, =
when Marconi transmitted and receive to two = or three hundred kilometers=20 away, they were unable to to=20 receive a signal to a hundred meters. =
Here a documentary=20 made by a German broadcaster few=20 years ago:=20
 
http://www.zdf.de/ZDFmediathek/beitrag/video/1211142/Das-uns= ichtbare-Netz#/beitrag/video/1211142/Das-unsichtbare-Netz 
 
This is one of the=20 best documentaries I = have=20 ever seen and = probably the closest to historical=20 truth.
 
@ Stefan = DK7FC=20
 
It is true = that=20 in 1901 there was = the noise created by the man = who today is present = but, the noise generated by Mother = Nature=20 was also at that=20 time.
Now I do not know what=20 could be the relationship between the sensitivity of Marconi receiver in = the 1901 = environment,=20 and a modern receiver = with the noise of=20 today. =
I recently tested some nickel powder Coherer = for a historical events=20 which we are organizing for next month and = I assure you that a carpenter's tack is=20 more sensitive :-)=20
&nbs= p;
73, Fausto=20
 
 
 
 
 
 
 
----- Original Message -----
From:=20 Markus=20 Vester
Sent: Saturday, August 22, 2015 = 6:07=20 PM
Subject: Re: LF: Re: Band is = open to=20 VK!

Hi Fausto,=20 LF,
 
>> do=20 not 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=20 there 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=20 just three dots, and false triggering by random = statics. Considering a=20 situation where a success was badly needed, the = reception may=20 well have 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=20 only 20 minutes with one Kg payload.
A kite or baloon is better. =
Seriously=20 speaking, the difficulties = are=20 very big, as = rightly says Stefan 160 meters band, has a very=20 different behavior but, = do not forget that in 1901 = Guglielmo Marconi received = a signal across the Atlantic at a=20 frequency around 500 kHz=20 and with a receiver that=20 in comparison with those of=20 today was a=20 tack. Ok were "only" 3500 Km.=20
Today what are we doing more=20 with our ultramodern = equipment?
Today we have SDR, = filters,=20 DSP, noise reducer, Marconi at=20 Signal Hill had a drop of 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=20 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 trying to=20 improve something every = day.=20
The important = thing is to think that nothing is=20 impossible, maybe=20 improbable but=20 not impossible.=20
Tonight I bored with the=20 history of telegraphy...:-)=20
&nbs= p;
73, Fausto IK4NMF=20
...
=

Nessun virus nel=20 messaggio.
Controllato da AVG - www.avg.com
Versione: 2015.0.6125 / = Database=20 dei virus: 4392/10484 - Data di rilascio:=20 22/08/2015

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