Skip to Content

Changes for page Change Gateway Power

Last modified by Xiaoling on 2022/08/10 15:18
From version 9.1
edited by Kilight Cao
on 2022/06/23 11:55
Change comment: There is no comment for this version
To version 1.7
edited by Xiaoling
on 2022/05/14 13:47
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Kilight
1 +XWiki.Xiaoling
Content
... ... @@ -1,19 +1,16 @@
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.
3 +(((
4 +In LoRaWAN protocol, the gateway output power refer to the downstream packets sent by Gateway. This output power is controlled by LoRaWAN server.
5 +)))
4 4  
7 +(((
8 +Gateway maintain a power index in the file: /etc/lora/global_conf.json for example:
9 +)))
5 5  
6 -= Change Power for Semtech UDP Paket forward connection =
7 -
8 -----
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 -
12 -Gateway maintains a power index in the file: /etc/lora/global_conf.json for example:
13 -
14 -
15 15  (% class="box" %)
16 16  (((
13 +(((
17 17  "tx_lut_3": {
18 18   "desc": "TX gain table, index 3",        ~/~/ Index 3 refer to rf_power: 15dB. device will set the pa_gain,mix_gain,dig_gain 
19 19   "pa_gain": 2,                            ~/~/ to the value mentioned here so to generate 15dB output power.
... ... @@ -28,23 +28,24 @@
28 28   "rf_power": 16,
29 29   "dig_gain": 0
30 30  )))
28 +)))
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.
30 +(((
31 +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.
32 +)))
33 33  
34 +(((
35 +
36 +)))
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.
38 +(((
39 +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.
40 +)))
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 -
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 -
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 -
42 +(((
50 50  
44 +)))
45 +
46 +(((
47 +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
48 +)))