This video is about a Navtex receiver software based on SDRPLAY SDR devices, meant for practical use on recreational boats.
The main dish of this project is an sdr (software defined radio) experiment. As a telecom engineer with a passion for sailing, I thought it was a fun and useful project to go for. The main trigger is the fact that no good and usable navtex decoding software for use in leisure crafts exists at this moment. Sure there's excellent software like YAND and FLDIGI. The thing is that those are just meant for the occasional HAM that wants to capture some navtex messages for fun.
As a sailor you need to be able to receive those messages without being in front of a GUI at the exact moment the messages are transmitted.
Navtex software should also allow to select messages based on message types (subject indicator) and message sources (transmitter identity), like a standard commercial NAVTEX receiver.
Chapters:
00:00 - Intro
00:57 - Why another navtex software
02:01 - Navtex in general
03:39 - Hardware setup
05:04 - The actual software
08:05 - The installation procedure
13:50 - In production
17:17 - Outro
Links to product websites:
https://www.furuno.com/en/products/navtex/NX-300
https://openmarine.net/openplotter
https://www.sdrplay.com
Software Installation procedure:
1) install the sdrplay API version 3.15 or higher (https://www.sdrplay.com/api/)
2)Also install some prerequisites:
sudo apt-get install libcjson-dev libsqlite3-dev libmicrohttpd-dev sqlite3
3) Download and install the actual software
wget http://csme.be/dl/navtex-0.01.tar.gz. (*)
tar -xvzf navtex-0.01.tar.gz
cd navtex-0.01
./configure
make
sudo make install
(*) NOTE: IT'S BETTER TO CHECK http://csme.be/dl FOR THE LATEST VERSION!!
versions beyond v0.01 have support for RSP2 and have some bugs solved
https://www.nasamarine.com/product/series-2-navtex-antenna/
https://www.nasamarine.com/product/h-vector-navtex-antenna/
Software also available on
https://github.com/bartelvdh/Navtex
The web-interface is based on the react javascript framework
https://github.com/bartelvdh/NavtexWebapp