From da13c5f7beef27ff0b247db07b537c9fe92dff0b Mon Sep 17 00:00:00 2001 From: sh123 Date: Mon, 22 Jun 2020 22:27:55 +0300 Subject: [PATCH] Updated First steps into APRS over LoRa (markdown) --- First-steps-into-APRS-over-LoRa.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/First-steps-into-APRS-over-LoRa.md b/First-steps-into-APRS-over-LoRa.md index 5c52ec3..b1f204e 100644 --- a/First-steps-into-APRS-over-LoRa.md +++ b/First-steps-into-APRS-over-LoRa.md @@ -19,7 +19,7 @@ There are several bands, where different LoRa modules could operate: LoRa modules support various SF (spreading factors) and various bandwidths, table below summarizes possible options, with the maximum reasonable speed and signal level: - 433 MHz: ranging from 292 bps (SF9, -138 dbm) up to 1560 bps (SF6, -128 dBm) for legal 433 MHz 20kHz channel - 868/915MHz: ranging from 293 bps (SF12, -137 dbm) up to 9375 bps (SF6, -118 dBm) for legal 868 Mhz 125kHz channel -- 2400Mhz: up to 2 Mbps, more information is not available +- 2400Mhz: up to 2 Mbps, up to 27 dBm, E28-2G4M27S modules, https://www.manualslib.com/manual/1591128/Ebyte-E28-2g4m27s.html ![](https://github.com/sh123/esp32_loraprs/blob/master/images/bandwidth_vs_sf.jpg)