I have been testing a few tbeams with meshtastic on 433 and 868 so far I have found that the SX1262 at 868mhz is much better than 433 with the sx1276.
I tested 0% signal at 868mhz at around 24kms this was fairly impressive as there was a building in the way of the signal I could get nothing on 433mhz here or at another spot I tested at around 6km.
I don’t know why this is exactly I can only assume interference
Antennas used:
433mhz
868mhz