ADS-B receiver

miniADSB receiver installation at Hůrka, Prague, Czech Republic, Central Europe.

FPGA decoder kit

If you are interested in FPGA decoder kit, see this link and visit miniadsbrx yahoo group. This page is about particular installation using this decoder and miniADSB receiver.

Hardware

The house on thich side the antenna was attached is under reconstruction. New antenna will be installed after reconstruction of balcony will be done. Receiver is now working with small wire antenna behind the window.

The receiver consists of several parts:

Antenna + lighting arrester + miniADSB receiver + comparator + RS-485 transmitter on pole
approx 20 meters of classic ethernet cable (1 pair for data, 3 pairs for power supply)
RS-485 receiver + FPGA decoder with ethernet available as kit
internet :-)
Intel Atom N270 server running 24/7 with PlanePlotter running on Linux (under Wine), serving also several web sites including this one

Location of receiver

View Larger Map

Installation photos

Antenna

VK4TEC's antenna: link, photo.

miniADSB hardware

There are minor changes made to the miniADSB receiver:

a 47nH SMD inductor (size 0402) was added on the antenna input
a ESD suppressor paralel to the inductor, 0603ESDA-TR of Cooper Bussman

The receiver succesfully survived a heavy thunderstorm just one week after its installation, and this was almost miracle (we have got broken windows) link, link.

FPGA decoder board

The decoder is available as kit. See page about the kit.

Receiver data

Receiver provides along others raw timestamped "AVR Format" data. They are accessible by TCP, at hq-hurka.zuban.name port 7777 (IP address is not static and may change). The data are also available using over HTTP (as endless file) at http://hq-hurka.zuban.name:7780/rx). The decoder has only limited number of sockets (currently 6) so please do connect only for evaluation and do not connect for long time to keep this available aslo for others.

Sample of current receiver operation

Receiver statistics

These statistics images are downloaded directly from the decoder's web interface (http://hq-hurka.zuban.name:7780):

Number of received Mode-S messages per minute

Number of planes

PlanePlotter test page

Receiver range

To south-west, south and south-east up to 180-220nm, north about 100-150nm. Unfortunately because of nearby buildings to north-west, no coverage of Ruzyně airport.

Contact

zuban2 (at) zuban (dot) name