Welcome to IridiumLive!
IridiumLive is a Blazor server application which allows for the real-time vizualization of the iridium satellites as they pass above your location.
It is another tool which allows for the visualization of live data coming from gr-iridium. Will not work without it.
You install the application in your local network, and use the browser to interact with it.
Binaries: https://github.com/microp11/iridiumlive/releases
To build/run from source you need dotnet version 3.1.* installed, then run:
git clone https://github.com/microp11/iridiumlive
cd iridiumlive
cd IridiumLive
dotnet run
At this time the following ports have been hard coded:
7777: IridiumLive server port,
15007: udp port for receiving data from gr-iridium and iridium-toolkit.
If the ports cannot be bound to, use:
lsof -i :7777
lsof -i :15007
to find out what's attached to these port(s).
You could use:
lsof -ti :7777 | xargs --no-run-if-empty kill -9
to forcefully clear out the port as part of your pre-start routine.
The data will be provided by your personal install of gr-iridium and iridium-toolkit (see gr-iridium and iridium-toolkit). See bottom of page for quick instructions.
- On the same machine as gr-iridium download and extract the python udp transmitter udp-for-il.py. Please install in the same folder as gr-iridium.
- Depending of your intended OS target, download and extract the appropriate IridiumLive archive. There is no installation needed, simply extract in a folder of its own. You can extract either on the same machine or to a different one.
- In the udp-for-il.py script, the server_address (192.168.2.10) denotes the machine where IridiumLive is installed. Modify it accordingly. This address is also where you will open your browser to later on:
...
import socket
ap = ("192.168.2.10", 15007)
sk = socket.socket(family=socket.AF_INET, type=socket.SOCK_DGRAM)
def sendOverUdp(line):
...- Change the center frequency of the gr-iridium decoder to include the Ring Alert band as described at min 9 in the Stefan “Sec” Zehl, schneider during their presentation at The Eleventh HOPE (2016): Iridium Satellite Hacking.
- Instantiate the iridium receiver and pipe through decoder, filter and udp transmitter adapting the following command line:
user@computer:~/gr-iridium$ iridium-extractor --offline --multi-frame examples/hackrf.conf | ~/iridium-toolkit/iridium-parser.py -p /dev/stdin /dev/stdout | python udp-for-il.py
- Only continue to next step if you see udp lines being transmitted:
191
1576397118 | i: 68/s | i_avg: 19/s | q: 0 | q_max: 7 | o: 106/s | ok: 63% | ok: 43/s | ok_avg: 51% | ok: 32064 | ok_avg: 9/s | d: 0
1576397119 | i: 67/s | i_avg: 19/s | q: 0 | q_max: 6 | o: 103/s | ok: 64% | ok: 43/s | ok_avg: 51% | ok: 32108 | ok_avg: 9/s | d: 0
1576397120 | i: 58/s | i_avg: 19/s | q: 0 | q_max: 5 | o: 91/s | ok: 57% | ok: 33/s | ok_avg: 51% | ok: 32142 | ok_avg: 9/s | d: 0
1576397121 | i: 69/s | i_avg: 19/s | q: 0 | q_max: 4 | o: 115/s | ok: 61% | ok: 42/s | ok_avg: 51% | ok: 32185 | ok_avg: 9/s | d: 0
169
173
191
169 <- the length of one blob sent over UDP
173
191
169- Run IridiumLive.
- Set up time accurately on the gr-iridium machine!
- Open any browser at http://server_address:7777 and enjoy!
This was my first .NET Core web app. Blazor on top of it. Be merciless and gentle!
The following has been tested on RPi 400 with https://sourceforge.net/projects/dragonos-pi64/
Currently DragonOs contains gnuradio 3.8+
Use the following to have your gr-iridium aligned with these versions:
git clone -b maint-3.8 https://github.com/muccc/gr-iridium.git
cd gr-iridium
mkdir build
cd build
cmake ..
make
sudo make install
sudo ldconfig
git clone https://github.com/muccc/iridium-toolkit.git
git checkout -b local-branch-from-commit e173069f43189ee7dfca2875f56ac284e74b17e4