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Changes for page Change Gateway Power

Last modified by Xiaoling on 2022/08/10 15:18
From version 12.1
edited by Kilight Cao
on 2022/06/23 14:18
Change comment: There is no comment for this version
To version 18.1
edited by Kilight Cao
on 2022/06/23 14:58
Change comment: There is no comment for this version

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... ... @@ -52,12 +52,13 @@
52 52  
53 53  [[image:image-20220623140335-1.png||height="241" width="378"]]
54 54  
55 -Gateways using the SX1301 LoRaWAN Concentrator are the LG308 and DLOS8.
55 +Gateways using the SX1301 LoRaWAN Concentrator are the [[LG308>>https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LG308-LG301/&file=Datasheet_LG308_LoRaWAN_Gateway.pdf]] and [[DLOS8>>https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/DLOS8/&file=DLOS8_LoRaWAN_Gateway_User_Manual_v1.3.pdf]].
56 56  
57 57  
58 58  **SX1301 Change Power for LoRaWAN Basic Station Connection example:**
59 59  
60 -Gateway maintains a power index in the file: /etc/station/station-sx1301.conf for example:
60 +Gateway maintains a power index in the file: /etc/station/station-sx1301.conf
61 +
61 61  (% class="box" %)
62 62  (((
63 63  {
... ... @@ -68,6 +68,9 @@
68 68   /* path to the SPI device, un-comment if not specified on the command line e.g., RADIODEV=/dev/spidev0.0 */
69 69   "device": "/dev/spidev1.0",
70 70   /* 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 +
71 71   "radio_0": {
72 72   "type": "SX1257",
73 73   "rssi_offset": -166.0,
... ... @@ -81,20 +81,72 @@
81 81   }
82 82   /* chan_multiSF_X, chan_Lora_std, chan_FSK provided by LNS */
83 83   },
84 - "station_conf": {
85 - "routerid": "a84041ffff1ec39f",
86 - "radio_init": "rinit.sh",
87 - "RADIO_INIT_WAIT": "5s",
88 - "RX_POLL_INTV": "10ms",
89 - "TC_TIMEOUT": "360s",
90 - "log_file": "stderr",
91 - "log_level": "DEBUG", /* XDEBUG,DEBUG,VERBOSE,INFO,NOTICE,WARNING,ERROR,CRITICAL */
92 - "log_size": 10000000,
93 - "log_rotate": 3,
94 - "CUPS_RESYNC_INTV": "1s"
95 - }
96 -}
97 97  )))
89 +
90 +Add parameters:**"tx_gain_lut": [ TX_GAIN_LUT, .. ]**
91 +
92 +(% class="box" %)
93 +(((
94 +{
95 + /* If slave-X.conf present this acts as default settings */
96 + "SX1301_conf": { /* Actual channel plan is controlled by server */
97 + "lorawan_public": true, /* is default */
98 + "clksrc": 1, /* radio_1 provides clock to concentrator */
99 + /* path to the SPI device, un-comment if not specified on the command line e.g., RADIODEV=/dev/spidev0.0 */
100 + "device": "/dev/spidev1.0",
101 + /* freq/enable provided by LNS - only HW specific settings listed here */
102 + "tx_gain_lut":[
103 + {"rf_power": 12, "pa_gain": 2, "mix_gain": 11, "dig_gain": 2, "dac_gain": 3}, 
104 + {"rf_power": 13, "pa_gain": 2, "mix_gain": 10, "dig_gain": 0, "dac_gain": 3},
105 + {"rf_power": 14, "pa_gain": 2, "mix_gain": 12, "dig_gain": 2, "dac_gain": 3},
106 + {"rf_power": 15, "pa_gain": 2, "mix_gain": 13, "dig_gain": 2, "dac_gain": 3},
107 +
108 +/* Index 3 refer to rf_power: 15dB. device will set the pa_gain,mix_gain,dig_gain */
109 +
110 +/* to the value mentioned here so as to generate 15dB output power.*/
111 + {"rf_power": 16, "pa_gain": 2, "mix_gain": 13, "dig_gain": 1, "dac_gain": 3},
112 + {"rf_power": 17, "pa_gain": 2, "mix_gain": 14, "dig_gain": 1, "dac_gain": 3},
113 + {"rf_power": 18, "pa_gain": 2, "mix_gain": 15, "dig_gain": 2, "dac_gain": 3},
114 + {"rf_power": 19, "pa_gain": 2, "mix_gain": 15, "dig_gain": 1, "dac_gain": 3},
115 + {"rf_power": 20, "pa_gain": 2, "mix_gain": 15, "dig_gain": 1, "dac_gain": 3},
116 + {"rf_power": 21, "pa_gain": 3, "mix_gain": 9, "dig_gain": 0, "dac_gain": 3},
117 + {"rf_power": 22, "pa_gain": 3, "mix_gain": 10, "dig_gain": 0, "dac_gain": 3},
118 + {"rf_power": 23, "pa_gain": 3, "mix_gain": 11, "dig_gain": 1, "dac_gain": 3},
119 + {"rf_power": 24, "pa_gain": 3, "mix_gain": 12, "dig_gain": 0, "dac_gain": 3},
120 + {"rf_power": 25, "pa_gain": 3, "mix_gain": 14, "dig_gain": 0, "dac_gain": 3},
121 + {"rf_power": 26, "pa_gain": 3, "mix_gain": 14, "dig_gain": 0, "dac_gain": 3},
122 + {"rf_power": 27, "pa_gain": 3, "mix_gain": 14, "dig_gain": 0, "dac_gain": 3}
123 + ],
124 + "radio_0": {
125 + "type": "SX1257",
126 + "rssi_offset": -166.0,
127 + "tx_enable": true,
128 + "antenna_gain": 0
129 + },
130 + "radio_1": {
131 + "type": "SX1257",
132 + "rssi_offset": -166.0,
133 + "tx_enable": false
134 + }
135 + /* chan_multiSF_X, chan_Lora_std, chan_FSK provided by LNS */
136 + },
137 +)))
138 +
139 +See this link for more station configuration parameters:[[Concentrator Design (v1.5) - LoRa Basics™ StationLoRa Basics™ Station ~| DEVELOPER PORTAL (semtech.com)>>url:https://lora-developers.semtech.com/build/software/lora-basics/lora-basics-for-gateways/?url=gw_v1.5.html]]
140 +
98 98  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.
99 99  
143 +(% style="color:red" %)Note: When the Settings are complete, click "Save&Apply" on the gateway's Web UI
144 +
145 +=== **Checking station Logs** ===
146 +
147 +Run the command:
148 +
149 +(% class="box infomessage" %)
150 +(((
151 +tail -f /var/iot/station.log
152 +)))
153 +
154 +[[image:image-20220623145437-2.png||height="501" width="694"]]
155 +
100 100  
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