[450] ADS-B receiver

[Robert Busino]

Feel free to send any links directly as you go forward. Dig it all.  Can't 
wait to share this stuff with my pal "Starman"!
  
  
  

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 From: "David McKenzie" <dmckenzie at gmail.com>
Sent: Monday, May 23, 2016 8:53 PM
To: "144. 450 Mailing List" <450 at lists.vhfwiki.com>
Subject: Re: [450] ADS-B receiver   
I moved the receiver and antenna outside this evening to see how the range 
improves. It is only right above the peak of the roof and the antenna is 
about 12-18" from the conduit holding the CX333, but it is hearing pretty 
well so far. If anybody is interested in seeing the live plots reply 
privately and I'll share the URL. I just don't want it getting cached by 
the google. https://i.sli.mg/Mxs3k7.png On 5/23/2016 12:45 PM, David 
McKenzie wrote: > After a few days logging ADS-B and mode-s transponders 
from aircraft > overhead here's how it hears. The antenna is in the attic 
directly > conencted to an "airspy mini" sdr dongle (99 bux, 6ish MHz 
bandwidth > very nice, rx only). It's a homebrew colinear made out of 11cm 
sticks of > rg58. > > > https://i.sli.mg/jpLLLM.png > > 
https://i.sli.mg/SqYRri.png > > The range circles are 20 miles each, red is 
30,000ft+, purple is > 20k-30k, dark green is 10-20k and light green is 
under 10k. From inside > the attic it can pretty much hear every takeoff 
and landing at oxford > but I lose planes into bradley under about 4000 
feet. > _______________________________________________ 450 mailing list 
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