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Another update to radio-settings.md

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Jm Casler 2021-02-02 23:59:34 -08:00
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1 changed files with 7 additions and 3 deletions
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docs/radio-settings.md
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@ -31,6 +31,8 @@ Channel zero starts at 903.08 MHz center frequency.
## Data-rates ## Data-rates
### About
Various data-rates are selectable when configuring a channel and are inversely proportional to the theoretical range of the devices. Various data-rates are selectable when configuring a channel and are inversely proportional to the theoretical range of the devices.
Considerations: Considerations:
@ -47,6 +49,9 @@ Considerations:
* * 4/7 - 1.75x overhead * * 4/7 - 1.75x overhead
* * 4/8 - 2x overhead * * 4/8 - 2x overhead
### Pre-Defined
Predefined Channels: Predefined Channels:
| Channel setting | Alt Channel Name | Data-rate | SF / Symbols | Coding Rate | Bandwidth | | Channel setting | Alt Channel Name | Data-rate | SF / Symbols | Coding Rate | Bandwidth |
@ -56,6 +61,8 @@ Predefined Channels:
| Long range (but slower) | Long Alt | 0.275 kbps | 9 / 512 | 4/8 | 31 | | Long range (but slower) | Long Alt | 0.275 kbps | 9 / 512 | 4/8 | 31 |
| Very long range (but slow) | Long Slow | 0.183 kbps (default) | 12 / 4096 | 4/8 | 125 | | Very long range (but slow) | Long Slow | 0.183 kbps (default) | 12 / 4096 | 4/8 | 125 |
### Custom Settings
Other settings can be set by using the Python API. Other settings can be set by using the Python API.
> meshtastic --set spread_factor 10 --set coding_rate 8 --bandwidth 125 > meshtastic --set spread_factor 10 --set coding_rate 8 --bandwidth 125
@ -75,7 +82,4 @@ Some example settings:
| 0.092 kbps | 12 / 4096 | 4/8 | 62 | | | 0.092 kbps | 12 / 4096 | 4/8 | 62 | |
| 0.046 kbps | 12 / 4096 | 4/8 | 31 | Twice the range of "Long Slow" | | 0.046 kbps | 12 / 4096 | 4/8 | 31 | Twice the range of "Long Slow" |
An easy calculator of other bit rates is:
[Lora Parameters](https://unsigned.io/understanding-lora-parameters/)