Receice MAC command #27
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i do receive MAC command from NS server
do the lib really apply the "power to 2" change on the node?
im very close to the gateway |
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Replies: 2 comments
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it seems that its try to change sx1276 power. |
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Yes the transmitting power is reduce when the network send this type of MAC command. For example for EU868 the transmission power is -2*the value send by the server (value define in lorawan regional settings). So the lib ask to sx1276 to transmit with power : But the sx1267 power can be set from +2 to +17, so the minimum TX power asked is always +2 (most board do use PA pin see PA_BOOST_PIN) |
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Yes the transmitting power is reduce when the network send this type of MAC command.
For example for EU868 the transmission power is -2*the value send by the server (value define in lorawan regional settings).
So the lib ask to sx1276 to transmit with power :
14 - 2*(the value in ADR request) + AntennaPowerAdjustment .
But the sx1267 power can be set from +2 to +17, so the minimum TX power asked is always +2 (most board do use PA pin see PA_BOOST_PIN)