Changes for page Change Gateway Power
Last modified by Xiaoling on 2022/08/10 15:18
From version 7.1
edited by Edwin Chen
on 2022/06/23 09:36
on 2022/06/23 09:36
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... ... @@ -1,38 +1,0 @@ 1 -= Change Power for Semtech UDP Paket forward connection = 2 - 3 ----- 4 - 5 -In LoRaWAN protocol, the gateway output power refer to the downstream packets sent by Gateway. This output power is controlled by LoRaWAN server. 6 - 7 -Gateway maintain a power index in the file: /etc/lora/global_conf.json for example: 8 - 9 - 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 -))) 26 - 27 -(% class="mark" %)Note: If when lorawan server specify a rf_power which is not list above. gateway will choose the closest power. profile. 28 - 29 - 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. 31 - 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. 33 - 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 35 - 36 - 37 - 38 -= Change Power for LoRaWAN Basic Station connection =