Wow that's amazing. I was just looking at the T-Echo. What device did you start out with?
I started with a t-deck, which is overkill, but I see that most nodes in the area are using heltec V3. I ordered two of those (~$40 each) and will report on the experience when I receive them. What may matter more is getting a large, high quality antenna and getting enough elevation.
Ahh thank you for the info. I am in an apartment at the moment and might have some trouble installing one, but I'll think about getting on just to have it.