[amsat-bb] Re: Spitnik
John.Melton at Sun.COM
Thu Sep 6 12:34:54 PDT 2007
I can remember listening to this with my old Pye Communications Receiver
There is an interesting document at
http://www.vibrationdata.com/Newsletters/March2006_NL.pdf starting on
page 9 is a description of Sputnik 1 along with some pictures (including
one of Roy Welch).
Page 11 has the following paragraph:
"The signal was a Pulse Duration Modulation (PDM) signal, according to
Reference 2 and 3. Sputnik's internal pressure was encoded as pulse
length, and temperature as length between pulses."
Also references the amsat web site for the audio:
Sun IT CTO Office
UK Office: +44 1252 421708 (ext 21708)
US Office: +1 650 568 4504 (ext 65504)
Mobile: +44 7714 708861
Dave Guimont wrote:
> Hi Lee,
> I "heard" Sputnik, and all I can tell you is that I heard a series of
> "beeps"....I was a navy pilot stationed at St. Louis NAS at the time,
> and just had a receiver with a simple wire antenna.
> I can tell you nothing more than that, and have no idea what, if any,
> information the "beep" carried, and do not know today what was conveyed..
> If you find out let me know!!
> 73, Dave wb6llo at amsat.org
> Disagree: I learn....
> Pulling for P3E...
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