Flightradar24.com

[mattviatura]

Hello all

I discovered this site on another post and have been watching it. Fascinating stuff but how does it work?

I'm not far from Manchester airport and there are planes flying in and out which don't appear to be showing, does it not display everything?

Thanks

[SimonV8ster]

I think people on the planes send text messages to say where they are ?

It did a good job of screwing the performance of my PC up !!

[dr_gn]

mattviatura said:

Hello all

I discovered this site on another post and have been watching it. Fascinating stuff but how does it work?

I'm not far from Manchester airport and there are planes flying in and out which don't appear to be showing, does it not display everything?

Thanks

"Flightradar24.com shows live airplane traffic from different parts around the world. Only airplanes equipped with an ADS-B transponder within the coverage area of our 100 receivers are visible on the map".

[mattviatura]

I'll ask a different question as I wasn't aware commercial airliners used differing transponders. Please does anybody know of a more comprehensive site displaying all traffic?

Edited by mattviatura on Tuesday 11th May 09:25

[Eric Mc]

I'd be interested as well. Here at Farnborough we get a lot of trafic in and out of the airfield but most biz jets don't carry the type of transponder that works on Flightradar24.

[Chuck328]

Hi all,

I'll have a stab at guessing (from what I've heard) that these tracking web sites pool info from spotters who have kit that picks up basic transponder info. I don't think it needs ADS-B, more just your standard "Mode S" Transponder. This is then uplinked to the web. I'm also led to believe that the aircraft you see are there merely because those are the ones the "spotters" have uploaded.

I stand to be corrected, this is just what I've heard from pals around the industry.

Cheers

Edited by Chuck328 on Tuesday 11th May 12:33

[anonymous-user]

People buy these receivers

http://www.javiation.co.uk/sbs-1.html

http://www.airnavsystems.com/

and some upload the data to make a kind of 'live' ATC grid. It's only as good as the number of people providing the data and the location of their receivers though.

I would say at LGW sites like flight radar 24 only ever show about 10% of the aircraft on approach or departure. I think you see more if you get your own set and become part of the spotters grids.

[motomk]

Use ADS-B a lot where I live mainly at night when 95% of the planes have it.
During the day it is a different story as 95% of them don't have it!
I know Oz has a 30 minute delayed feed online but it is only around the major cities.