I have a lopy4 device that sends data to TTN (gateway is a Mikrotik Lorawan gateway with 6.5dbi antenna mounted on roof) and despite the advertised optimum range of ~20km I am having a hard time getting even a few kilometers.
The devices are in flat farmland (see https://goo.gl/maps/r1uA5Xe8vZqKY3UE9 for an example) so I’m very surprised to be having issues.
When the device boots it joins the Lorawan network using OTAA and at distances over a few hundred meters it can’t even join the network! Full code is at https://gist.github.com/hilt86/b21d8d6d6491416e71043bfd0db8759a
Here are some questions :
- What can I do to improve the range?
- Should I be using the AU923 instead of AU915?
- What effect does choice of TTN router have?
I’d very much appreciate any advice I can get!