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Changes for page Change Gateway Power

Last modified by Xiaoling on 2022/08/10 15:18
From version 1.1
edited by Xiaoling
on 2022/05/14 13:43
Change comment: There is no comment for this version
To version 5.1
edited by Edwin Chen
on 2022/06/20 17:43
Change comment: There is no comment for this version

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Author
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1 -XWiki.Xiaoling
1 +XWiki.Edwin
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1 -{{box cssClass="floatinginfobox" title="**Contents**"}}
2 -{{toc/}}
3 -{{/box}}
1 += Introduction =
4 4  
5 -= Paragraph 1 =
3 +----
6 6  
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5 +In LoRaWAN protocol, the gateway output power refer to the downstream packets sent by Gateway. This output power is controlled by LoRaWAN server.
8 8  
9 -== Sub-paragraph ==
7 +Gateway maintain a power index in the file: /etc/lora/global_conf.json for example:
10 10  
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12 12  
13 -== Sub-paragraph ==
10 +(% class="box" %)
11 +(((
12 +"tx_lut_3": {
13 + "desc": "TX gain table, index 3",        ~/~/ Index 3 refer to rf_power: 15dB. device will set the pa_gain,mix_gain,dig_gain 
14 + "pa_gain": 2,                            ~/~/ to the value mentioned here so to generate 15dB output power.
15 + "mix_gain": 10,
16 + "rf_power": 15,
17 + "dig_gain": 1
18 +},
19 +"tx_lut_4": {
20 + "desc": "TX gain table, index 4",
21 + "pa_gain": 2,
22 + "mix_gain": 10,
23 + "rf_power": 16,
24 + "dig_gain": 0
25 +)))
14 14  
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16 16  
17 -=== Sub-sub paragraph ===
28 +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.
18 18  
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30 +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.
20 20  
32 +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
21 21  
22 -= Paragraph 2 =
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25 -
26 -== Sub-paragraph ==
27 -
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29 -
30 -== Sub-paragraph ==
31 -
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