[GreenKeys] 'Russian woodpecker signal-revisited...

[Randy and Sherry Guttery]

  On 10/16/2010 9:54 AM, Ken Gartland wrote:
> Hi all...
>
> I have played the audio clip of the 'Russian woodpecker'
> over and over again...There is no doubt hearing a variety
> of modulation techniques and/or a form of AFSK keying,
> but using varying AF frequencies...
>
> Has any of you guys that are 'Audio'  proficient ever run this
> audio clip thru a frequency spectrum analyzer to see what
> is actually embedded in there?
>
> Just curious...Sounds like it cud be an interesting
> experiment...I am quite fascinated with this bit of Radio
> history. I pbly did hear it many yrs ago, but didn't. know what it was at the time.
Go here and get this file - then you can see it for yourself:

http://www.qsl.net/g3cwi/Downloads/gram50.zip

best!

-- 
randy guttery

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