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Author

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1		-XWiki.Kilight
	1	+XWiki.Edwin

Content

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1		-= Overview: =
	1	+= Introduction =
2	2
3		-In LoRaWAN protocol, the gateway transmit packet uses the output power base on the Power Index from the LoRaWAN server downlink. for example, the LoRaWAN server sends a downlink with this info "rf_power=14", gateway got this info and it will search the index for rf_power=14 and use the related rf setting to set output power. In some cases, the LoRaWAN server might set the rf-power to a quite low value ( for example 0dB) which is not practical for use. In such a case, the User can manually change the rf_power=0's rf settings to a higher power out. Below are the methods.
4		-
5		-
6		-= Change Power for Semtech UDP Paket forward connection =
7		-
8	8	----
9	9
10		-In LoRaWAN protocol, the gateway output power refers to the downstream packets sent by Gateway. This output power is controlled by the LoRaWAN server.
	5	+In LoRaWAN protocol, the gateway output power refer to the downstream packets sent by Gateway. This output power is controlled by LoRaWAN server.
11	11
12		-Gateway maintains a power index in the file: /etc/lora/global_conf.json for example:
	7	+Gateway maintain a power index in the file: /etc/lora/global_conf.json for example:
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14	14
15	15	(% class="box" %)
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29	29	"dig_gain": 0
30	30	)))
31	31
32		-(% class="mark" %)Note: If when lorawan server specifies a rf_power that is not listed above. gateway will choose the closest power. profile.
	27	+(% class="mark" %)Note: If when lorawan server specify a rf_power which is not list above. gateway will choose the closest power. profile.
33	33
34	34
35		-When the LoRaWAN server sends a downlink stream, the server will also ask the gateway to use rf_power as output. So users don't need to consider controlling on the gateway side.
	30	+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.
36	36
37		-If users want to always use a higher power or a lower power. Users can modify the pa_gain,mix_gain, and dig_gain to specify rf_power to achieve this purpose. This is not recommended, because this might break the regulator for a specific country.
	32	+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 recommended, because this might break the regulator for specific country.
38	38
39		-Please note, that the global_conf.json file will be overwritten by the match region files in /etc/lora/cfg-30x when changing settings on the web. So the user needs to change the files in /etc/lora/cfg-cfg-30x instead of global_conf.json
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41		-
42		-= Change Power for LoRaWAN Basic Station connection =
43		-
44		-----
45		-
46		-When users use LoRaWAN Basic Station， How to Change the Power for the LoRaWAN Basic Station connection?
47		-
48		-If users want to always use a higher power or a lower power. Users can modify the pa_gain,mix_gain, and dig_gain to specify rf_power to achieve this purpose. This is not recommended, because this might break the regulator for a specific country.
49		-
50		-
	34	+Please note, that the global_conf.json file will be overwritten by the match region files in /etc/lora/cfg-30x when changing settings in the web. So user needs to change the files in /etc/lora/cfg-cfg-30x instead of global_conf.json