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Change default Coding Rate to 4/5 for <=LongFast #2920

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merged 1 commit into from
Nov 2, 2023
Merged

Change default Coding Rate to 4/5 for <=LongFast #2920

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12 changes: 6 additions & 6 deletions src/mesh/RadioInterface.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -384,27 +384,27 @@ void RadioInterface::applyModemConfig()
switch (loraConfig.modem_preset) {
case meshtastic_Config_LoRaConfig_ModemPreset_SHORT_FAST:
bw = (myRegion->wideLora) ? 812.5 : 250;
cr = 8;
cr = 5;
sf = 7;
break;
case meshtastic_Config_LoRaConfig_ModemPreset_SHORT_SLOW:
bw = (myRegion->wideLora) ? 812.5 : 250;
cr = 8;
cr = 5;
sf = 8;
break;
case meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_FAST:
bw = (myRegion->wideLora) ? 812.5 : 250;
cr = 8;
cr = 5;
sf = 9;
break;
case meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_SLOW:
bw = (myRegion->wideLora) ? 812.5 : 250;
cr = 8;
cr = 5;
sf = 10;
break;
default: // Config_LoRaConfig_ModemPreset_LONG_FAST is default. Gracefully use this is preset is something illegal.
bw = (myRegion->wideLora) ? 812.5 : 250;
cr = 8;
cr = 5;
sf = 11;
break;
case meshtastic_Config_LoRaConfig_ModemPreset_LONG_MODERATE:
Expand Down Expand Up @@ -546,4 +546,4 @@ size_t RadioInterface::beginSending(meshtastic_MeshPacket *p)

sendingPacket = p;
return p->encrypted.size + sizeof(PacketHeader);
}
}
4 changes: 2 additions & 2 deletions src/mesh/RadioInterface.h
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Original file line number Diff line number Diff line change
Expand Up @@ -56,7 +56,7 @@ class RadioInterface

float bw = 125;
uint8_t sf = 9;
uint8_t cr = 7;
uint8_t cr = 5;
/** Slottime is the minimum time to wait, consisting of:
- CAD duration (maximum of SX126x and SX127x);
- roundtrip air propagation time (assuming max. 30km between nodes);
Expand Down Expand Up @@ -223,4 +223,4 @@ class RadioInterface
};

/// Debug printing for packets
void printPacket(const char *prefix, const meshtastic_MeshPacket *p);
void printPacket(const char *prefix, const meshtastic_MeshPacket *p);
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