Hello everyone, could you share with me your experiences in using the following equipment, mainly what distances you have reached with this equipment, under what conditions, since I have not found that information, you will also know how you can change the propagation factor (SF )

-LILYGO TTGO LoRa32 915Mhz V1.6.1
-LILYGO TTGO T-Beam V1.1 LoRa32 915 Mhz NEO-6M