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LoRa RF Characteristics
2.8
Transmitter RF Characteristics
2.8.1
The RAK2245 has an excellent transmitter performance. It is highly
recommended to use an optimized configuration for the power level
configuration, which is part of the HAL. This results in a mean RF output power
level and current consumption.
Note：The maximum output power setting should not exceed 11.73dBm.
PA Control
0
0
0
1
1
1
1
1
1
2
2
2
3
3
3
3
3
Table 4 | RF Output Power Level
T=25℃, VDD=5V(Typ.) if nothing else stated.
Parameter
Frequency Range
Modulation Techniques
TX Frequency Variation vs.
Temperature
TX Power Variation vs.
Temperature
TX Power Variation
DAC Control
MIX Control
3
8
3
10
3
14
3
9
3
8
3
9
3
11
3
12
3
13
3
12
3
13
3
14
3
10
3
11
3
12
3
13
3
14
Condition
FSK/LoRaTM
Power Level
Setting : 20
RAK7243
Nominal RF Power
DIG Gain
Level
0
-6 dBm
0
-3 dBm
0
0
3
4 dBm
0
8 dBm
0
10 dBm
0
12 dBm
0
14 dBm
0
16 dBm
0
17 dBm
0
19 dBm
0
20 dBm
0
0
0
0
0
25 dBm
0
26 dBm
0
27 dBm
Min
Typ.
Max
903 MHz
927.5 MHz
-3 KHz
+3 KHz
-5 dBm
+5 dBm
-1.5 dBm
+1.5 dBm
RAK7243 User Manual V1.1
9
9
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