Research first before acting
Bought two LoRa modules from the Pihut - one plugged into my Pi4, the other via my mobile running a terminal app. Wrote a bash script to send a message every second with timestamp, and set the mobile to receive. Walked about five miles away from home.
What I should have done is checked the ground profile first, as my route after a quarter of a mile blocked the signal due to terrain. Haven't bothered since but intend to plan the next route. As I have a relative perched on a hill in Ryde, Isle of Wight, I'd like to see if it would work over on the ferry to Portsmouth. Don't see why not?
Now what would be really scary is if the message that bounced back from the moon responded with 'hello we're fine up here how's the weather on earth?'