Yea the Boron + LoRa combo is a pretty sweet combo.
I tried a few of the different modem settings but the default seemed to work good.
Just need to get the antennas up as high as possible or use directional for best results if your needing long range.
I found this info about different modem settings in the RH_RF95.h file
/// Choices for setModemConfig() for a selected subset of common
/// data rates. If you need another configuration,
/// determine the necessary settings and call setModemRegisters() with your
/// desired settings. It might be helpful to use the LoRa calculator mentioned in
/// http://www.semtech.com/images/datasheet/LoraDesignGuide_STD.pdf
/// These are indexes into MODEM_CONFIG_TABLE. We strongly recommend you use these symbolic
/// definitions and not their integer equivalents: its possible that new values will be
/// introduced in later versions (though we will try to avoid it).
/// Caution: if you are using slow packet rates and long packets with RHReliableDatagram or subclasses
/// you may need to change the RHReliableDatagram timeout for reliable operations.
/// Caution: for some slow rates nad with ReliableDatagrams youi may need to increase the reply timeout
/// with manager.setTimeout() to
/// deal with the long transmission times.
typedef enum
{
Bw125Cr45Sf128 = 0, ///1: Bw = 125 kHz, Cr = 4/5, Sf = 128chips/symbol, CRC on. Default medium range
Bw500Cr45Sf128, ///2: Bw = 500 kHz, Cr = 4/5, Sf = 128chips/symbol, CRC on. Fast+short range
Bw31_25Cr48Sf512, ///3: Bw = 31.25 kHz, Cr = 4/8, Sf = 512chips/symbol, CRC on. Slow+long range
Bw125Cr48Sf4096, ///4: Bw = 125 kHz, Cr = 4/8, Sf = 4096chips/symbol, CRC on. Slow+long range
BW41_7Cr45Sf512, ///5: Bw = 41.7 kHz, Cr = 4/5, Sf = 512chips/symbol, CRC on
BW62_5Cr45Sf1024, ///6: Bw = 62.5 kHz, Cr = 4/5, Sf = 1024 chips/symbol, CRC on
BW62_5Cr45Sf512, ///7: Bw = 62.5 kHz, Cr = 4/5, Sf = 512 chips/symbol, CRC on
BW256_7Cr45sf128, ///8: Bw = 256 kHz, Cr = 4/5, Sf7 = 128chips/symbol, CRC on
BW125_7Cr45sf128, ///9: Bw = 125 kHz, Cr = 4/5, Sf7 = chips/symbol, CRC on
BW62_57Cr45sf128, ///10: Bw = 62.5 kHz, Cr = 4/5, Sf7 = chips/symbol, CRC on
BW125CR46SF9, ///11: Bw = 125 kHz, Cr = 4/6, Sf9 = chips/symbol, CRC on
BW62_5CR45SF9, ///12: Bw = 62.5 khz, Cr = 4/5, Sf8 = 256 chips/symbol, CRC on.
BW62_5CR46SF10, ///13: Bw = 62.5 khz, Cr = 4/6, Sf10 = 1024 chips/symbol, CRC on.
BW62_5CR45SF11, ///14: Bw = 62.5 khz, Cr = 4/5, Sf11 = 2048 chips/symbol, CRC on.
BW125CR45SF11, ///15: Bw = 125 khz, Cr = 4/5, Sf11 = 2048 chips/symbol, CRC on.
BW125CR45SF10, ///16: Bw = 125 khz, Cr = 4/5, Sf10 = 1024 chips/symbol, CRC on.
BW31_25CR45SF9, ///17: Bw = 31.25khz, Cr = 4/5, Sf8 = 256 chips/symbol, CRC on.
BW41_7CR45SF9, ///18: Bw = 41.7khz, Cr = 4/5, Sf8 = 256 chips/symbol, CRC on
} ModemConfigChoice;