Hello everyone,
     Was experimenting with the available various open source DIY Digital FPV Systems since long time. There are several capable systems out there with great capabilities, since these opensource digital systems uses commonly available SBC like Raspberry pi, therefore less costly, upgradable & you can always repurpose the hardware's for other projects. Also its very easy to make the whole system. Its capable of doing Long Range (40+km achievable), Full HD digital video transmission, MAVLink Telemetry etc.
     Made a video about this, please check the below link, comments & quarries are welcome.

     https://youtu.be/yOq6otNqT2k?si=U1MrUPlgbkE7ZhaG