Very long range wireless communication between two arduinos(500-1000 KM) I searched for very long range wireless communications between two Arduinos, but can't find solutions. I don't live in USA, In my country there are regions, where GSM does not work.
I want wireless communication approximately 500-1 000 KMs.
What are options without GSM for that distance wireless communication(500-1000 KM)?
What are options without GSM for that distance wireless communication(500-1000 KM)?


1) use the internet;

2) use narrow band transmission, like qrp;

3) use relays;

4) use satellite phones;

5) use a high-powered lw transceivers.

6) ...