www.flightradar24.com

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VK3JTM
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www.flightradar24.com

Post by VK3JTM » Mon Apr 26, 2010 10:18 am

Hi all, Just letting you all that I am now uploading plane data to http://www.flightradar24.com/?lat=m36d8 ... 625&zoom=6, live 24/7 as YARA radar.
The setup here in Ararat (307masl) is a RadarBox with 12db antenna at 12mtr(40 foot) 35db mast head amp.
I am seeing about 400km Radius at this time.
Also I am on Plane-plotter as ix
73`s from Tim vk3jtm
Last edited by VK3JTM on Fri Jul 02, 2010 9:24 pm, edited 2 times in total.

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Re: www.flightradar24.com

Post by VK7HDX » Tue Apr 27, 2010 8:41 am

Thank you for this.

73...Karl
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Re: www.flightradar24.com

Post by VK3JTM » Thu Apr 29, 2010 6:13 pm

Hi All,If you have an ADS-B receiver, or get one, and you want to share information received by your receiver with Flightradar24.com you can contact info@flight24.com with information about your location (town or airport and country). In a couple of days they will send you some scripts that are easily installed on your computer. Once installed the scripts will send flight information from your area to our server and the map on Flightradar24.com. The bandwidth used by the scripts is very small, about 500 MB per month (15 MB per day). Several of Flightradar24.com receivers are using GPRS/3G/mobile broadband to send information to the map. :D
This is looking like it`s going to be a real good site that is for free. 8)

Cheers for now: Tim VK3JTM

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Re: www.flightradar24.com

Post by VK7HDX » Thu Apr 29, 2010 11:08 pm

Hi Tim.
Can You please send me some information or links on a ADS-B RX and what type of quality of antenna is required.
Because the planes go off the radar about 100km short of VK7 and I would like to extend our viewing window.

73..Karl
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Re: www.flightradar24.com

Post by VK4QB » Fri Apr 30, 2010 8:10 am

Hi Tim,
The antenna is vertically polarised. Frequency 1090 mhz The aircraft use a 1/4 wave but you can get better gain with a omnidirectional phased array BUt you will have poor performance from those aircraft over the top.
73
Brian 4QB

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Re: www.flightradar24.com

Post by VK4FIL » Fri Apr 30, 2010 10:23 am

Hi Tim and others,
Yes, this is a great system and only very recently Brisbane has come online as well as South Australia.
I use it almost every day to track aircraft beyween BNE and SYD for 6 meters FSK441 / JT6M modes for enhancement and MS scatter.
Keep up the good work those who have set up RX for ADS-B

Phil vk4fil

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Re: www.flightradar24.com

Post by VK3JTM » Mon May 03, 2010 9:36 pm

Hi all, I have installed the latest Plane Plotter with the 30003 port and now trying to cross link this to filghtradar24 but not having any luck at the moment.
Karl, I have sent you a email with links to the reviver, antenna and amp, hope this is of some help to you?
looks like there is now another ADS-B feeding from Adelaide (YPAD2) witch has a good coverage.

cheers for now Tim: VK3JTM

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Re: www.flightradar24.com

Post by VK7HDX » Tue May 04, 2010 7:43 am

Hi Tim..
Thanks for that information as well.
I still have a huge fascination on watching (which looks like a Qantas) overhead at roughly 35.000ft (if not higher) as it travels across the VK7 to Johannesburg from Sydney around 11.45am (VK7 time) Monday and Friday. Yesterday it was a cloudless day and I could hear it and also could see the 4 vapor trails off the back of the aircraft. So on the off chance I raced inside to fired up Flightradar24 but nothing but I already knew that because you can see this far South.

Once again thank you for this useful service.

73...Karl
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Re: www.flightradar24.com

Post by VK3JTM » Fri May 07, 2010 1:10 pm

Hi all, Here are some links to web sites that I used to get my station up and running.
this is the shop I got my ADS-B unit from,http://www.vscs.com.au/eshop/index.php? ... roductId=8
And I made a 12db Collinear antenna like this one http://www.repeater-builder.com/antenna/wa6svt.html
for 1090MHz and I then got a mast head amp from http://www.kuhne-electronic.de/en/shop/ ... _1090_A_TM
The unit comes with a antenna but it is not very good for long haul stuff.

Hope this will help any that are looking at doing the same thing. :wink:

73`s for now Tim: VK3JTM :D

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Re: www.flightradar24.com

Post by VK3BJM » Fri May 07, 2010 4:07 pm

Or, if you don't have the Wallabies - sorry, Euros; always get those two mixed up - for the Kuhne LNA, go for the VK5EME EME103 pre-amp kit (http://www.minikits.com.au/kits2.html#eme103). Works just fine at 1090 MHz, and has a 1000 MHz High Pass filter on the front end. Only $40 Au - leaves you plenty of spare cash for a box to put it in...

Remember you only need enough gain in the pre-amp to overcome the coax loss between the antenna and the receiver...

73,
Barry
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Re: www.flightradar24.com

Post by VK4QB » Fri May 28, 2010 9:24 pm

Hi Tim,
Exactly what comes out of the Radar box ?
I have some old Transponder receivers from which I can see the 121 bit ADSB transmissions but I think they are decoded by the radar box. but into what format?
73
Brian 4QB

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Re: www.flightradar24.com

Post by VK3JTM » Sat May 29, 2010 12:06 am

VK4QB wrote:Hi Tim,
Exactly what comes out of the Radar box ?
I have some old Transponder receivers from which I can see the 121 bit ADSB transmissions but I think they are decoded by the radar box. but into what format?
73
Brian 4QB
Hi there Brian, the ADSB downlink broadcast frame is resent at regular intervals by the aircraft for a specific period time, at a nominal rate of 1 Hz. It includes the transmission of Extended Squitter - the unsolicited downlink broadcast of positional reports. The system „depends” on other aircraft systems, like a barometric encoder and GPS equipment for the position data.

The preamble of the Mode S downlink allows a synchronisation to a clock for decoding the Data Block which is coded with the Pulse-Posistion-Modulation (PPM). The Data format of an ADS-B message is the format number DF17. The content of the datafield DF is here the decimal number 17, in binary code 10001b.

Preamble
Data Block
5
3
24 bits
56 bits
24 bits
DF
CA
AA
ADS-B data
PI
clock

Figure 1: Data Block of an ADS-B message

The three following bits (called “Capability”, or “CA”) ist the number of sub-type of the ADSB- message. The length 3 bit gives eight different kinds of reports. The next 24 bits are the individual Aircraft (ICAO) Address. The next Data field of 56 bits is the carrier of the ADS-B report, depending on the content of the “CA” field.

This report can include:

* aircraft type and aircraft ID
* altitude,
* encoded latitude,
* encoded longitude (both coarse), and
* airborne velocity.

The last 24 bits are the error detection code (Parity Information, PI).
The Radar box reads and decodes this and puts it out on TCP port 30003.
Hope this info is some use to you?

73`s Tim
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Re: www.flightradar24.com

Post by VK4QB » Sat May 29, 2010 9:07 am

Tim,
Thanks for that data. I don't think that we can decode all the data without a micro tho. I once worked at a mob that did some research into ADSB transmitters and of course that pulse train was generated by micro.
Thanks
Brian 4QB

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Re: www.flightradar24.com

Post by VK3BJM » Tue Jun 22, 2010 2:12 pm

Good stuff, Tim

Have finally gotten around to getting the script from FlightRadar24, and I'm now streaming data from my SBS-1, too.

Can't promise that it will be streaming 24/7 - but we'll see if we can get close to it. It'll certainly be streaming when I'm in the shack.

Should fill in the blank area over SW NSW and northern VIC, depending of course on where the 28-el yagi is pointing! Being over the Great Divide helps with visibility to the NE through NW.

73,
Barry
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Re: www.flightradar24.com

Post by VK3JTM » Tue Jun 22, 2010 6:59 pm

VK3BJM wrote:Good stuff, Tim

Have finally gotten around to getting the script from FlightRadar24, and I'm now streaming data from my SBS-1, too.

Can't promise that it will be streaming 24/7 - but we'll see if we can get close to it. It'll certainly be streaming when I'm in the shack.

Should fill in the blank area over SW NSW and northern VIC, depending of course on where the 28-el yagi is pointing! Being over the Great Divide helps with visibility to the NE through NW.

73,
Barry
VK3BJM
Good one Barry, I can see your data on fighradart24 and it`s looking good. :D
Hope all well over there? did not hear you over the weekend for the Winter Field Day. :wink:

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Re: www.flightradar24.com

Post by VK3BJM » Wed Jun 23, 2010 1:51 pm

Unfortunately an accident back on the 9th of May left me in no position to participate in the Winter Field Day (there goes the certificate for competing in all three FD comps... :roll: ) - certainly not out in the field, anyway. I didn't operate from home as my father and sister came up on the weekend to take some of the pressure from my partner, who's been flat chat working, doing extracurricular studies, looking after me and the household, and generally burning the candle at both ends AND in the middle.

Aiming to be at GippsTech, though - if you're there I can bore you with the gruesome details over dinner!

73,
Barry
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Re: www.flightradar24.com

Post by VK3HZ » Sat Jun 26, 2010 9:37 am

VK3BJM wrote:Have finally gotten around to getting the script from FlightRadar24, and I'm now streaming data from my SBS-1, too.
Hey Baz,

How about sharing on PlanePlotter too? That way, we'll see more on the Radio Site Display Google Earth overlay.

Regards,
Dave.

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Re: www.flightradar24.com

Post by VK3BJM » Tue Jul 13, 2010 10:22 am

Dear Dave,

I've spent some time this morning reprogramming the comspewter with a very large axe, and would you believe it? I think I have finally got it all working! Plane Plotter, that is.

Have RSD running on GE. Have PP running. Can see data from my SBS-1 on PP and GE. Have hit the both-way share button - certainly receiving data from other receivers, appearing as aircraft in places far far away (well, too far even for my ADS-B antenna... :lol: ). So hopefully there is data leaking out to the rest of you!

Why wasn't it this simple the last time I tried this????? :roll:

Hoo-rooooooo,

Barry
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Re: www.flightradar24.com

Post by 9A4CU » Fri Dec 02, 2011 6:27 pm

For those interesting in ADS-B receivers maybe USB stick receiver would be interesting made by Miro, LZ2RR.
Have a look at http://46.40.125.13:8000/ or visit http://groups.yahoo.com/group/microADSB/
I have been using it and my "best Dx" is 245 miles with 5dB gain vertical antenna by Wi-Mo.Cheap stuff!

73
Sinisa

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