[CW] Fake or Real? MGY

pa0wv pa0wv at amsat.org
Tue Feb 11 05:38:41 EST 2020




May be the spectrum of the spoken word "1912" and the spectrum of the 
body of a dash is of value.

Produced by downloading the complete MP3 from the N1EA link, opening it 
with Audacity, selecting the samples and using the spectrum facility of 
Audacity.

73=30


  Richard Knoppow schreef op 2020-02-11 07:24:
>    I think some wire recorders used super sonic bias which would have
> lowered the noise and improved fidelity. I probably have specs
> somewhere. However, one problem that was never solved was the twisting
> of the wire between recording and playback. This caused a variation of
> the high frequencies. Wire recording was never that popular and didn't
> compete with tape. It was also very difficult to edit since splicing
> was done by tying an square knot. Worked but not well.
>    There were a couple of machines that used steel tape. I think the
> early BBC recorders did. The first tape recorder I ever saw was in a
> roller skating rink in rural Michigan when I was a kid. Probably
> c.1947 but I am not sure. Have no idea of the kind. Once Ampex
> introduced high quality tape recorders many people began making them.
> At first no one could compete with Ampex but after a while there were
> several high quality machines available such as Fairchild and
> Rangertone. Ranger introduced a stepped drive capstan and roller to
> create tension on the tape without resorting to using the wind motors.
> Very clever. It took several years for Ampex et.al. to figure out that
> scrape flutter was important and provide rollers to remove it. Well,
> this is probably thoroughly off topic.
> 
> On 2/10/2020 4:02 PM, n7dc at comcast.net wrote:
>> I will first state, I havent looked up when wire recorders were first 
>> in use, but I happned to own one in 1960s and actually used it on my 
>> ham radio desk while going to college.  I copied both cw and also some 
>> voice AM signals in my SWL listening.  I recorded my own cw signals , 
>> from time to time, as well.  It worked, but a lot of trouble, and 
>> noises on it.  It made a good CQ transmission, for voice. HI.
>> 
>> N7DC at ARRL.NET
>> Ex WN5QMX,WA5UKR,ET2US,ET3USA,SV0WPP,VS6DD,N7DC/YV5/G5CTB
>> QSL Bureau, DIRECT, LOTW Preferred, eQSL used but upload at a courtesy 
>> only, as do not use the system for awards.
>> 
>>> On February 10, 2020 at 8:08 AM "D.J.J. Ring, Jr." <n1ea at arrl.net> 
>>> wrote:
>>> 
>>> Charles Apgar, W2MN recorded Sayville, NY radio, WSL on an Edison wax 
>>> cylinder recorder. Most of the cylinders were lost they had been on 
>>> display at NBC radio in NYC.
>>> 
>>> 73
>>> 
>>> DR
>>> 
>>> On Mon, Feb 10, 2020, 08:05 spud roscoe < spudrve1bc at outlook.com 
>>> <mailto:spudrve1bc at outlook.com>> wrote:
>>> 
>>>     Good Morning:
>>> 
>>>     If my memory serves me correctly I remember reading
>>>     something of the court case over WSL during World War I.
>>>     In that the so called experts stated they did *not* know
>>>     of a devise that could record radio signals. Maybe if you
>>>     have access to that it will indicate fake because it was
>>>     four or five years after Titanic. Years ago I interviewed
>>>     some of the old operators that were operating around then.
>>>     I find it hard to believe there was a recording and the
>>>     Cape Race VCE logs on Titanic were lost in the fire when
>>>     the station burned in 1919.
>>> 
>>>     Hope this helps.
>>> 
>>>     73
>>> 
>>>     Spud VE1BC
>>> 
>>>     Sent from Mail
>>>     <https://go.microsoft.com/fwlink/?LinkId=550986> for
>>>     Windows 10
>>> 
>>>     *From: *D.J.J. Ring, Jr. <mailto:n1ea at arrl.net>
>>>     *Sent: *February 10, 2020 7:09 AM
>>>     *To: *CW Reflector <mailto:cw at mailman.qth.net>
>>>     *Subject: *Re: [CW] Fake or Real? MGY
>>> 
>>>     The narrator isn't me. There was a W5 callsign given at
>>>     the end, that man was born in 1920, he has an amazing
>>>     voice for a man that old.  Most likely the last letter of
>>>     his call got cut off.
>>> 
>>>     I agree with your remarks, they spent a lot of time on a
>>>     fake recording, I think.
>>> 
>>>     73
>>> 
>>>     DR
>>> 
>>>     On Mon, Feb 10, 2020, 00:52 Richard Knoppow
>>>     <1oldlens1 at ix.netcom.com <mailto:1oldlens1 at ix.netcom.com>>
>>>     wrote:
>>> 
>>>         Now, having listened again to the entire thing with
>>>     introduction I find some of what I wanted is addressed
>>>     particularly the origin of the recording.
>>>         Is the narrator you David? If so I wish I had been a
>>>     little
>>>     more gentle in my remarks. Also, if its you, it makes my
>>>     judgement more toward the recording being genuine because
>>>     I know
>>>     you are a historian and generally pretty reliabl
>>> 
>>>     ______________________________________________________________
>>> 
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>>>     =30= 
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>>> =30=
>> 
>> 
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>> =30=
> 
> --
> Richard Knoppow
> 1oldlens1 at ix.netcom.com
> WB6KBL
> 
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> =30=
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