[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
>>>
>>> ______________________________________________________________
>>>
>>> CW mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/cw
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto: CW at mailman.qth.net <mailto:CW at mailman.qth.net>
>>> CW List ARCHIVES: http://mailman.qth.net/pipermail/cw/
>>> Unsubcribe send email to
>>> cw-unsubscribe at mailman.qth.net
>>> <mailto:cw-unsubscribe at mailman.qth.net>
>>> Subscribe send email to cw-subscribe at mailman.qth.net
>>> <mailto:cw-subscribe at mailman.qth.net>
>>> Support this email list: http://www.qsl.net/donate.html
>>>
>>> =30=
>>> ______________________________________________________________
>>> CW mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/cw
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:CW at mailman.qth.net
>>> CW List ARCHIVES: http://mailman.qth.net/pipermail/cw/
>>> Unsubcribe send email to
>>> cw-unsubscribe at mailman.qth.net
>>> Subscribe send email to cw-subscribe at mailman.qth.net
>>> Support this email list: http://www.qsl.net/donate.html
>>>
>>> =30=
>>
>>
>> ______________________________________________________________
>> CW mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/cw
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:CW at mailman.qth.net
>> CW List ARCHIVES: http://mailman.qth.net/pipermail/cw/
>> Unsubcribe send email to
>> cw-unsubscribe at mailman.qth.net
>> Subscribe send email to cw-subscribe at mailman.qth.net
>> Support this email list: http://www.qsl.net/donate.html
>>
>> =30=
>
> --
> Richard Knoppow
> 1oldlens1 at ix.netcom.com
> WB6KBL
>
> ______________________________________________________________
> CW mailing list
> Home: http://mailman.qth.net/mailman/listinfo/cw
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:CW at mailman.qth.net
> CW List ARCHIVES: http://mailman.qth.net/pipermail/cw/
> Unsubcribe send email to
> cw-unsubscribe at mailman.qth.net
> Subscribe send email to cw-subscribe at mailman.qth.net
> Support this email list: http://www.qsl.net/donate.html
>
> =30=
-------------- next part --------------
A non-text attachment was scrubbed...
Name: spectrum1912.jpg
Type: image/jpeg
Size: 57268 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/cw/attachments/20200211/4d2eb99d/attachment-0002.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: spectrumdash.jpg
Type: image/jpeg
Size: 50775 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/cw/attachments/20200211/4d2eb99d/attachment-0003.jpg>
More information about the CW
mailing list