Difference between revisions of "Change Gateway Power"
(Created page with "=Introduction= In LoRaWAN protocol, the gateway output power refer to the downstream packets sent by Gateway. This output power is controlled by LoRaWAN server. Gateway mai...") |
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Gateway maintain a power index in the file: /etc/lora/global_conf.json for example: | Gateway maintain a power index in the file: /etc/lora/global_conf.json for example: | ||
"tx_lut_3": { | "tx_lut_3": { | ||
| − | + | "desc": "TX gain table, index 3", // Index 3 refer to rf_power: 15dB. device will set the pa_gain,mix_gain,dig_gain | |
| − | + | "pa_gain": 2, // to the value mentioned here so to generate 15dB output power. | |
| − | + | "mix_gain": 10, | |
| − | + | "rf_power": 15, | |
| − | + | "dig_gain": 1 | |
}, | }, | ||
"tx_lut_4": { | "tx_lut_4": { | ||
| − | + | "desc": "TX gain table, index 4", | |
| − | + | "pa_gain": 2, | |
| − | + | "mix_gain": 10, | |
| − | + | "rf_power": 16, | |
| − | + | "dig_gain": 0 | |
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. | 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. | ||
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. | 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. | ||
| + | |||
| + | 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 | ||
Latest revision as of 01:26, 28 May 2021
Introduction
In LoRaWAN protocol, the gateway output power refer to the downstream packets sent by Gateway. This output power is controlled by LoRaWAN server.
Gateway maintain a power index in the file: /etc/lora/global_conf.json for example:
"tx_lut_3": {
"desc": "TX gain table, index 3", // Index 3 refer to rf_power: 15dB. device will set the pa_gain,mix_gain,dig_gain
"pa_gain": 2, // to the value mentioned here so to generate 15dB output power.
"mix_gain": 10,
"rf_power": 15,
"dig_gain": 1
},
"tx_lut_4": {
"desc": "TX gain table, index 4",
"pa_gain": 2,
"mix_gain": 10,
"rf_power": 16,
"dig_gain": 0
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.
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.
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
