Usually this kind of setup is used for rebroadcast stations for VHF, or sometimes even linking HF to VHF(to folks who’ve not played with radios think about making the WiFi coverage work in your apartment house - but your house is a circle with an 80 kilometre radius. Lost of fun, because you get to slink away from every one else’s and you and your mate(or mates) can just brew up and listen to the nets - ok not all that great, but very probably better than actually fighting.
i wonder in practic practice how many would still use this kind of setup? It would seem that drones or autominous vehicles could do the same for less cost, either in war or disaster and of course one thing about a node like this if it’s war they are very visible via RF, so it’s probably a good thing for everyone If there are no people in them.
Well there has been examples used by the International Red Cross, for reusing old Mobile Phones as instant relays for communications purposes using voice and TXT facilities - within the Pacific Islands.
However, drones - land based ones could also be used to set up analogue or digital communications networks in the battlefield, and perhaps the same in Civil Defence emergencies as well.