[FedCom] airplane scatter

[Ed]

comprehensive airplane scatter detection has been demonstrated with 
inexpensive off-the-shelf hardware and free software:

http://events.ccc.de/congress/2005/fahrplan/attachments/673-slides-passive-radar.pdf#search=%22%22gnu%20radio%22%20%22passive%20radar%22%22

-ed


At 02:25 PM 10/10/06, you wrote:


>Michael W. Scheel wrote:
><major snip>
>>The radar return from FAA ATC radar would be so small you would 
>>need a directional antenna the size of a large building which most 
>>ATC Radars are. You would be better off trying to detect them with 
>>airplane scatter on the tv channels. Something I read and tried out 
>>back in the late 70s. I pointed a large TV antenna array at 
>>Milwaukee Wi and placed the TV on Channel 18. I then would see a 
>>brief burst of signal when an airplane was in the right place 
>>between Milwaukee and my location in Davenport Iowa. But it was 
>>really boring I think I never got more than a half dozen burst in 
>>60 minutes. Only tried it a couple of times.
>
>This technique is used for meteor detection. What they do is set up 
>a radio in CW mode so that it emits a tone (beat frequency) when the 
>TV signal carrier is detected.
>
>http://www.spaceweather.com/glossary/forwardscatter2.html
>
>
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