kopia lustrzana https://github.com/sh123/esp32_loraprs
Updated First steps into APRS over LoRa (markdown)
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@ -19,7 +19,7 @@ There are several bands, where different LoRa modules could operate:
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LoRa modules support various SF (spreading factors) and various bandwidths, table below summarizes possible options, with the maximum reasonable speed and signal level:
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- 433 MHz: ranging from 292 bps (SF9, -138 dbm) up to 1560 bps (SF6, -128 dBm) for legal 433 MHz 20kHz channel
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- 868/915MHz: ranging from 293 bps (SF12, -137 dbm) up to 9375 bps (SF6, -118 dBm) for legal 868 Mhz 125kHz channel
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- 2400Mhz: up to 2 Mbps, more information is not available
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- 2400Mhz: up to 2 Mbps, up to 27 dBm, E28-2G4M27S modules, https://www.manualslib.com/manual/1591128/Ebyte-E28-2g4m27s.html
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![](https://github.com/sh123/esp32_loraprs/blob/master/images/bandwidth_vs_sf.jpg)
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