diff --git a/docs/radio-settings.md b/docs/radio-settings.md index 4a3f615e..e6b148cc 100644 --- a/docs/radio-settings.md +++ b/docs/radio-settings.md @@ -37,12 +37,12 @@ Various data-rates are selectable when configuring a channel and are inversely p Considerations: -* Spreading Factor +* Spreading Factor - How much we "spread" our data over time. * * Each step up in Spreading Factor dobules the airtime to transmit. * * Each step up in Spreading Factor adds about 2.5db extra link budget. -* Bandwidth +* Bandwidth - How big of a slice of the spectrum we use. * * Each doubling of the bandwidth is almost 3db less link budget. -* Coding Rate +* Coding Rate - How much redundency we encode to resist noise. * * Increasing coding rate increases reliability while decrasing data-rate. * * 4/5 - 1.25x overhead * * 4/6 - 1.5x overhead