How to configure for better call quality.

[zerooolong]

Hello, thank you for sharing. I have successfully replicated this solution. However, the call quality remains poor during use. Are there any reference settings I can follow, or any other setup guides?

[sh123]

For the best voice quality, use Codec2 at 1200 bps or higher, paired with a correspondingly higher RF bit rate. Alternatively, OPUS codec with elevated bitrate settings.

• SF=7 Configurations
  125 kHz: 2400 bps
  62.5 kHz: 1600 bps
  41.7 kHz: 1200 bps
  31.25 kHz: 700 bps (strong noise environment)

• SF=8 Configurations
  250 kHz: 2400 bps
  125 kHz: 1600 bps
  62.5 kHz: 700 bps (strong noise environment)

• SF=9 Configurations
  250 kHz: 2400 bps
  125 kHz: 1200 bps (~1 sec delay)

• SF=10 Configurations
  500 kHz: 2400 bps
  250 kHz: 1200 bps (~1 sec delay)

• SF=11 Configurations
  500 kHz: 1200 bps

[zerooolong]

Thank you for the detailed guidance! I will test these configurations one by one and see how it goes.