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1		-XWiki.Kilight
	1	+XWiki.Edwin

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	1	+(% class="wikigeneratedid" %)
1	1	= Overview: =
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	+In LoRaWAN protocol, the gateway transmit packet use the output power base on the Power Index from LoRaWAN server downlink. for example: LoRaWAN server send downlink with this info "rf_power=14", gatewat 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 case, the LoRaWAN server might set the rf-power to a quite low value ( for example 0dB) which is not practical for use. In such case, User can manunal change the rf_power=0's rf settings to a higher power out. Below are the methods.
4	4
5	5
6	6	= Change Power for Semtech UDP Paket forward connection =
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7	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.
	11	+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:
	13	+Gateway maintain a power index in the file: /etc/lora/global_conf.json for example:
13	13
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.
	33	+(% 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.
	36	+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.
	38	+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
	40	+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
40	40
41	41
42		-= Change Power for LoRaWAN Basic Station connection =
43	43
44		-----
45		-
46		-First, you need to find out what is the chip module of the gateway?
47		-
48		-(% class="box infomessage" %)
49		-(((
50		-cat /var/iot/chip
51		-)))
52		-
53		-[[image:image-20220623140335-1.png||height="241" width="378"]]
54		-
55		-Gateways using the SX1301 LoRaWAN Concentrator are the LG308 and DLOS8.
56		-
57		-
58		-**SX1301 Change Power for LoRaWAN Basic Station Connection example:**
59		-
60		-Gateway maintains a power index in the file: /etc/station/station-sx1301.conf for example:
61		-
62		-(% class="box" %)
63		-(((
64		-{
65		- /* If slave-X.conf present this acts as default settings */
66		- "SX1301_conf": { /* Actual channel plan is controlled by server */
67		- "lorawan_public": true, /* is default */
68		- "clksrc": 1, /* radio_1 provides clock to concentrator */
69		- /* path to the SPI device, un-comment if not specified on the command line e.g., RADIODEV=/dev/spidev0.0 */
70		- "device": "/dev/spidev1.0",
71		- /* freq/enable provided by LNS - only HW specific settings listed here */
72		-
73		- ** |<~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-(% style="color:red" %)Add parameters:"tx_gain_lut"  :  [ TX_GAIN_LUT, .. ](%%)**
74		-
75		- "radio_0": {
76		- "type": "SX1257",
77		- "rssi_offset": -166.0,
78		- "tx_enable": true,
79		- "antenna_gain": 0
80		- },
81		- "radio_1": {
82		- "type": "SX1257",
83		- "rssi_offset": -166.0,
84		- "tx_enable": false
85		- }
86		- /* chan_multiSF_X, chan_Lora_std, chan_FSK provided by LNS */
87		- },
88		-)))
89		-
90		-(% class="box" %)
91		-(((
92		-{
93		- /* If slave-X.conf present this acts as default settings */
94		- "SX1301_conf": { /* Actual channel plan is controlled by server */
95		- "lorawan_public": true, /* is default */
96		- "clksrc": 1, /* radio_1 provides clock to concentrator */
97		- /* path to the SPI device, un-comment if not specified on the command line e.g., RADIODEV=/dev/spidev0.0 */
98		- "device": "/dev/spidev1.0",
99		- /* freq/enable provided by LNS - only HW specific settings listed here */
100		- "tx_gain_lut":[
101		- {"rf_power": 12, "pa_gain": 2, "mix_gain": 11, "dig_gain": 2, "dac_gain": 3},
102		- {"rf_power": 13, "pa_gain": 2, "mix_gain": 10, "dig_gain": 0, "dac_gain": 3},
103		- {"rf_power": 14, "pa_gain": 2, "mix_gain": 12, "dig_gain": 2, "dac_gain": 3},
104		- {"rf_power": 15, "pa_gain": 2, "mix_gain": 13, "dig_gain": 2, "dac_gain": 3},
105		- {"rf_power": 16, "pa_gain": 2, "mix_gain": 13, "dig_gain": 1, "dac_gain": 3},
106		- {"rf_power": 17, "pa_gain": 2, "mix_gain": 14, "dig_gain": 1, "dac_gain": 3},
107		- {"rf_power": 18, "pa_gain": 2, "mix_gain": 15, "dig_gain": 2, "dac_gain": 3},
108		- {"rf_power": 19, "pa_gain": 2, "mix_gain": 15, "dig_gain": 1, "dac_gain": 3},
109		- {"rf_power": 20, "pa_gain": 2, "mix_gain": 15, "dig_gain": 1, "dac_gain": 3},
110		- {"rf_power": 21, "pa_gain": 3, "mix_gain": 9, "dig_gain": 0, "dac_gain": 3},
111		- {"rf_power": 22, "pa_gain": 3, "mix_gain": 10, "dig_gain": 0, "dac_gain": 3},
112		- {"rf_power": 23, "pa_gain": 3, "mix_gain": 11, "dig_gain": 1, "dac_gain": 3},
113		- {"rf_power": 24, "pa_gain": 3, "mix_gain": 12, "dig_gain": 0, "dac_gain": 3},
114		- {"rf_power": 25, "pa_gain": 3, "mix_gain": 14, "dig_gain": 0, "dac_gain": 3},
115		- {"rf_power": 26, "pa_gain": 3, "mix_gain": 14, "dig_gain": 0, "dac_gain": 3},
116		- {"rf_power": 27, "pa_gain": 3, "mix_gain": 14, "dig_gain": 0, "dac_gain": 3}
117		- ],
118		- "radio_0": {
119		- "type": "SX1257",
120		- "rssi_offset": -166.0,
121		- "tx_enable": true,
122		- "antenna_gain": 0
123		- },
124		- "radio_1": {
125		- "type": "SX1257",
126		- "rssi_offset": -166.0,
127		- "tx_enable": false
128		- }
129		- /* chan_multiSF_X, chan_Lora_std, chan_FSK provided by LNS */
130		- },
131		-)))
132		-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.
133		-
134		-
	44	+= Change Power for LoRaWAN Basic Station connection =

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