Libelium Waspmote LoRa, Networking Manual, Page: 23 / 47

-23- v7.0
Power gain and sensitivity
9. Power gain and sensitivity
When configuring a node and a network, one important parameter is related with power gain and sensitivity.
9.1. Power level
Power level (dBm) at which the module transmits conducted power.
The possible values are Low (‘L’), High (‘H’) and Max (‘M’):
Parameter SX1272 power level
'L'
0 dBm
'H'
7 dBm
'M'
14 dBm
Figure: Transmission power values
It is also possible to set the conducted power indicating the quantity as a parameter in the function
setPower
.
Note: dBm is a standard unit to measure power level taking as reference a 1 mW signal.
Values expressed in dBm can be easily converted to mW using the next formula:
mW = 10^(value dBm/10)
Graphic about transmission power is exposed next:
Figure: SX1272 output power level