Agreed -narrower BW will certainly improve range if you are using Dorji''s DRF1268DM modules (best confirm). Refer attached table -organised by SRNET & myself some years ago with SX127x modules. I'd settled then on 62.5kHz BW for reliability.
The crystal oscillator on 2nd generation SX126x based LoRa offerings has superior matching & temperature stability than the xtall on initial SX127x modules. Dorji's setup tool is quite involved however so you may well be able to stay with what's working! Mmm -aside from Oaks in full leaf do you experience heavy rain signal fade ? Stan.
The crystal oscillator on 2nd generation SX126x based LoRa offerings has superior matching & temperature stability than the xtall on initial SX127x modules. Dorji's setup tool is quite involved however so you may well be able to stay with what's working! Mmm -aside from Oaks in full leaf do you experience heavy rain signal fade ? Stan.
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