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1		-= Introduction =
2		-
3		-(((
4		-In LoRaWAN protocol, the gateway output power refer to the downstream packets sent by Gateway. This output power is controlled by LoRaWAN server.
5		-)))
6		-
7		-(((
8		-Gateway maintain a power index in the file: /etc/lora/global_conf.json for example:
9		-)))
10		-
11		-(% class="box" %)
12		-(((
13		-"tx_lut_3": {
14		- "desc": "TX gain table, index 3",        ~/~/ Index 3 refer to rf_power: 15dB. device will set the pa_gain,mix_gain,dig_gain
15		- "pa_gain": 2,                            ~/~/ to the value mentioned here so to generate 15dB output power.
16		- "mix_gain": 10,
17		- "rf_power": 15,
18		- "dig_gain": 1
19		-},
20		-"tx_lut_4": {
21		- "desc": "TX gain table, index 4",
22		- "pa_gain": 2,
23		- "mix_gain": 10,
24		- "rf_power": 16,
25		- "dig_gain": 0
26		-)))
27		-
28		-(((
29		-When LoRaWAN server sends a downlink stream, server will also ask the gateway to use which rf_power as output. So user don't need to consider to control in the gateway side.
30		-)))
31		-
32		-(((
33		-If user want to always use a higher power or a lower power. User can modify the pa_gain,mix_gain,dig_gain for specify rf_power to achieve this purpose. This is not recommend, because this might break the regulator for specify country.
34		-)))
35		-
36		-(((
37		-Please note, the global_conf.json file will be overwrite by the match region files in /etc/lora/cfg-30x when change settings in the web. So user need to change the files in /etc/lora/cfg-cfg-30x instead of global_conf.json
38		-)))