Air Traffic Question

[Le_Petit_Lapin]

So, back the other week when Eyjafjallajökull was making a right mess of air traffic in Europe this lovely website was posted somewhere in the volcano thread:

http://www.flightradar24.com/

Sometimes I'll see a plane up over me and I can now nip onto there if I'm curious and see where its going, which is rather nice, like the ShipAIS website.

Anyway, I was wondering what it means if you see planes flying overhead that don't show up on that website? I'm not the best sleeper in the world, so I tend to be up at 3, 4, 5am and there seems to be this one damn plane that does a long wide 180 degree turn over my house every couple of days at like 3:30am, yet its never on that website when I go to have a look.

Why would this be? Just curious.

 

[Deiwos]

*awaits magick to show up with a conspiracy theory involve lizards and UFOs*

 

[RobH]

Only airplanes equipped with an ADS-B transponder within the coverage area of our 100 receivers are visible on the map.

Also see here for more detailed information: http://www.flightradar24.com/about.php

 

[2StepSteve]

Great site thanks for sharing would be interesting to use in conjunction with a scanner as lists their call sign.

 

[Scuzi]

What you are seeing on that website is not a radar feed. As above, it is based on a network of ADS-B receivers. Not all aircraft aree equipped with these transponders and not all of those that are have the function enabled.

There's a LOT more up there than appears on that website.

 

[nydryl]

Can't help with your request but that's a really interesting site.

 

[Cosimo]

Here is an edited ADS-B receive:

http://forums.overclockers.co.uk/showpost.php?p=16406309&postcount=1833

More about the software:

http://www.kinetic-avionics.co.uk/basestation.php

Here are two receivers:

From Kinetic:

http://www.kinetic-avionics.co.uk/sbs-1.php

Buy it from Martin Lynch:

http://www.hamradio.co.uk/acatalog/Av_RD_Kinetic_Avionics.html

From AirNav:

http://www.airnavsystems.com/RadarBox/

 

[Cosimo]

Why would this be? Just curious.

Sounds like a military or marine patrol. Do you have any airfields around?

 

[Andr3w]

a lot of aircraft that you see don't have the right equipment to be able to appear on that website.

Also for obvious reasons our military aircraft don't appear

Here is an edited ADS-B receive:

http://forums.overclockers.co.uk/showpost.php?p=16406309&postcount=1833

More about the software:

http://www.kinetic-avionics.co.uk/basestation.php

Here are two receivers:

From Kinetic:

http://www.kinetic-avionics.co.uk/sbs-1.php

Buy it from Martin Lynch:

http://www.hamradio.co.uk/acatalog/Av_RD_Kinetic_Avionics.html

From AirNav:

http://www.airnavsystems.com/RadarBox/

Good post

 

[Le_Petit_Lapin]

Sounds like a military or marine patrol. Do you have any airfields around?

Aldergrove I should imagine in that case.