kopia lustrzana https://github.com/meshtastic/firmware
Another update to radio-settings.md
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@ -31,6 +31,8 @@ Channel zero starts at 903.08 MHz center frequency.
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## Data-rates
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## Data-rates
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### About
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Various data-rates are selectable when configuring a channel and are inversely proportional to the theoretical range of the devices.
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Various data-rates are selectable when configuring a channel and are inversely proportional to the theoretical range of the devices.
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Considerations:
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Considerations:
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@ -47,6 +49,9 @@ Considerations:
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* * 4/7 - 1.75x overhead
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* * 4/7 - 1.75x overhead
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* * 4/8 - 2x overhead
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* * 4/8 - 2x overhead
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### Pre-Defined
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Predefined Channels:
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Predefined Channels:
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| Channel setting | Alt Channel Name | Data-rate | SF / Symbols | Coding Rate | Bandwidth |
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| Channel setting | Alt Channel Name | Data-rate | SF / Symbols | Coding Rate | Bandwidth |
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@ -56,6 +61,8 @@ Predefined Channels:
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| Long range (but slower) | Long Alt | 0.275 kbps | 9 / 512 | 4/8 | 31 |
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| Long range (but slower) | Long Alt | 0.275 kbps | 9 / 512 | 4/8 | 31 |
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| Very long range (but slow) | Long Slow | 0.183 kbps (default) | 12 / 4096 | 4/8 | 125 |
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| Very long range (but slow) | Long Slow | 0.183 kbps (default) | 12 / 4096 | 4/8 | 125 |
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### Custom Settings
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Other settings can be set by using the Python API.
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Other settings can be set by using the Python API.
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> meshtastic --set spread_factor 10 --set coding_rate 8 --bandwidth 125
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> meshtastic --set spread_factor 10 --set coding_rate 8 --bandwidth 125
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@ -75,7 +82,4 @@ Some example settings:
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| 0.092 kbps | 12 / 4096 | 4/8 | 62 | |
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| 0.092 kbps | 12 / 4096 | 4/8 | 62 | |
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| 0.046 kbps | 12 / 4096 | 4/8 | 31 | Twice the range of "Long Slow" |
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| 0.046 kbps | 12 / 4096 | 4/8 | 31 | Twice the range of "Long Slow" |
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An easy calculator of other bit rates is:
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[Lora Parameters](https://unsigned.io/understanding-lora-parameters/)
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