Where it's at by the pond I have a storage building about half way with power. So I only have to run 150' of extension cord.
If I can get out to say 800m I figure I can stick a 12v battery with an inverter with it. Could also add a solar cell so I wouldn't have to recharge. Or maybe not recharge as much. Or depending on what camera I find, Some are 12v. So I could leave out the inverter.
Guess your talking about the same type linear amp used on CBs? But don't they over heat if left on? I can try one. If it works I'll probably have to look for a bigger solar cell. I'll also look around. I had a SWR meter at one time. If I can't found it I guess I can get one cheap enough.