Wiki source code of LG01v2 -- LoRa Gateway User Manual

Version 91.1 by Kilight Cao on 2022/11/09 14:35

version	line-number	content
2.3	1	(% style="text-align:center" %)
6.1	2	[[image:image-20221028134937-1.jpeg\|\|height="466" width="466"]]
2.2	3
2.3	4	(((
4.1	5
1.2	6
4.1	7
2.3	8	)))
1.2	9
2.3	10	Table of Contents：
1.2	11
2.3	12	{{toc/}}
1.2	13
2.3	14	= 1. Introduction =
1.2	15
	16
61.1	17	== 1.1 What is LG01-V2 ==
1.2	18
	19
7.1	20	(((
	21	(((
61.1	22	The LG01-V2 is an (% style="color:green" %)open-source single channel LoRa Gateway(%%). It lets you bridge LoRa wireless network to an IP network via (% style="color:green" %)WiFi , Ethernet or Cellular Network(%%) (via Optional 4G module). The LoRa wireless allows users to send data and reach extremely long ranges at low data rates.
7.1	23	)))
1.2	24
7.1	25	(((
61.1	26	LG01-V2 supports (% style="color:green" %)remote management(%%). System Integrator can easy to remote monitor the gateway and maintain it.
7.1	27	)))
1.2	28
	29
	30
7.1	31	== 1.2 Specifications ==
1.2	32
	33
7.1	34	(% style="color:#037691" %)Hardware System:
1.2	35
7.1	36	* CPU: Quad-core Cortex-A7 1.2Ghz
	37	* RAM: 512MB
	38	* eMMC: 4GB
1.2	39
7.1	40	(% style="color:#037691" %)Interface:
2.2	41
7.1	42	* 10M/100M RJ45 Ports x 1
	43	* WiFi 802.11 b/g/n
2.2	44
7.1	45	(% style="color:#037691" %)Operating Condition:
2.2	46
7.1	47	* Work Temperature: -20 ~~ 65°C
	48	* Storage Temperature: -20 ~~ 65°C
	49	* Power Input: 5V, 2A, DC
2.2	50
7.1	51	== 1.3 Features ==
2.3	52
	53
7.1	54	* Open Source Debian system
	55	* Managed by Web GUI, SSH via WAN or WiFi
	56	* Remote Management
	57	* Auto-provisioning for batch deployment and management
7.2	58	* LoRa Gateway
7.1	59	* Built-in (% style="color:#037691" %)//The Things Network//(%%) local LoRaWAN server
	60	* Built-in (% style="color:#037691" %)//Node-Red// (%%)local Application server
	61
	62	== 1.4 Block Diagram ==
	63
	64
	65
9.1	66	== 1.5 LED Indicators ==
7.1	67
	68
9.1	69	LG01-V2 has totally four LEDs, They are:
7.1	70
	71
9.1	72	(% style="color:blue" %)//➢ Power LED//(%%)//: This RED LED will be solid if the device is properly powered//
7.1	73
9.1	74	(% style="color:blue" %)//➢ ETH LED//(%%)//: This RGB LED will blink GREEN when the ETH port is connecting//
7.1	75
9.1	76	(% style="color:blue" %)//➢ SYS LED//(%%)//: This RGB LED will show different colors in different states~://
7.1	77
9.1	78	// ✓ SOLID GREEN: The device is alive with a LoRaWAN server connection.//
7.1	79
9.1	80	// ✓ BLINKING GREEN: a) Device has internet connection but no LoRaWAN Connection. or b) Device is in booting stage, in this stage, it will BLINKING GREEN for several seconds and then with BLINKING GREEN together//
7.1	81
9.1	82	// ✓ SOLID RED: Device doesn't have an Internet connection.//
7.1	83
9.1	84	(% style="color:blue" %)//➢ WIFI LED//(%%)//: This LED shows the WIFI interface connection status.//
7.1	85
9.1	86
	87
	88	== 1.6 Button Intruction ==
	89
	90
61.1	91	LG01-V2 has a black toggle button, which is:
9.1	92
	93
	94	(% style="color:blue" %)//➢ //Long press 4-5s : (%%)the gateway will reload the Network and Initialize wifi configuration
	95
	96	// LED status: ETH LED will BLINKIND BULE Until the reload is finished.//
	97
	98
	99	(% style="color:blue" %)//➢ //Long press more than 10s:(%%) //the gateway will restore the factory settings.//
	100
	101	//LED status: ETH LED will SOLID BULE Until the restore is finished.//
	102
	103
	104
29.1	105	= 2. Quick Start =
9.1	106
	107
24.1	108	The LG01-V2 supports network access via Ethernet or Wi-Fi connection and runs without a network.
9.1	109
24.1	110	In most cases, the first thing you need to do is make the LG01-v2 accessible to the network.
12.1	111
	112
17.2	113	== 2.1 Connects to the network and accesses the gateway Web UI ==
12.1	114
17.2	115
	116	== 2.1.1 connect the network. ==
	117
	118
	119	=== (% style="color:blue" %)Method 1(%%): Connect via Ethernet with DHCP IP from the router ===
	120
	121
61.1	122	Connect the LG01-V2 Ethernet port to your router and LG01-V2 can obtain an IP address from your router. In the router's management portal, you should be able to find what IP address the router has assigned to the LG01-V2.
17.2	123
	124	You can also use this IP to connect.
	125
24.1	126
19.1	127	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/HP0C/WebHome/image-20220622100129-1.png?width=1263&height=332&rev=1.1\|\|alt="image-20220622100129-1.png"]]
17.2	128
	129
24.1	130	=== (% style="color:blue" %)Method 2(%%): Connect via WiFi with DHCP IP from the router ===
17.2	131
	132
24.1	133	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/HP0C/WebHome/image-20220622100542-2.png?width=1256&height=369&rev=1.1\|\|alt="image-20220622100542-2.png"]]
17.2	134
	135
24.1	136	Fill in the WiFi information by checking the box and clicking (% style="color:red" %)Save&Apply
	137
	138
	139	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/HP0C/WebHome/image-20220622102702-6.png?rev=1.1\|\|alt="image-20220622102702-6.png"]]
	140
	141
17.2	142	Wi-Fi configuration successful
	143
	144
24.1	145	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/HP0C/WebHome/image-20220622102847-7.png?rev=1.1\|\|alt="image-20220622102847-7.png"]]
17.2	146
	147
	148
24.1	149	= 3. Web Configure Pages =
17.2	150
24.1	151	== 3.1 Home ==
	152
	153	//Shows the system running status~://
	154
73.1	155	[[image:image-20221104155612-1.png\|\|height="497" width="942"]]
24.1	156
	157
	158	== 3.2 Network Settings ==
	159
	160
	161	=== 3.2.1 Network ~-~-> WiFi ===
	162
	163
73.1	164	[[image:image-20221104155654-2.png\|\|height="319" width="813"]]
24.1	165
	166
	167
	168	=== 3.4.2 Network ~-~-> System Status ===
	169
	170
73.1	171	[[image:image-20221104155724-3.png\|\|height="679" width="861"]]
24.1	172
	173
	174
	175	=== 3.4.3 Network ~-~-> Firewall ===
	176
	177
	178	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/HP0C/WebHome/image-20220616115351-6.png?width=661&height=244&rev=1.1\|\|alt="image-20220616115351-6.png"]]
	179
	180
	181
	182	== 3.5 System ==
	183
	184
	185	=== 3.5.1 System ~-~-> System Overview ===
	186
	187
	188	Shows the system info:
	189
73.1	190	[[image:image-20221104155907-4.png]]
24.1	191
	192
	193
	194	=== 3.5.2 System ~-~-> Backup/Restore ===
	195
	196
73.1	197	[[image:image-20221104155928-5.png\|\|height="334" width="880"]]
24.1	198
	199
66.1	200	= (% id="cke_bm_1978S" style="display:none" %) (%%)4. Build in Server =
24.1	201
	202
66.1	203	The default factory version of LG01-V2 is installed with the built-in Applicant server: (% style="color:blue" %)Node-Red
25.1	204
	205
73.1	206	[[image:image-20221104155949-6.png\|\|height="315" width="1023"]]
25.1	207
66.1	208
	209	(% style="color:red" %)Note:
	210
	211	Path: System ~-~-> Built-in Server
	212
	213
	214	Troubleshooting:
	215
	216
	217	~ 1. URL does not jump properly
	218
	219	For the Node-Red, you can use the local IP address and the port is 1880 to access it.
	220
	221
	222
	223	== 4.1 Application Server ~-~- Node-Red ==
	224
	225
	226	You can access the gateway's built-in AS server of (% style="color:blue" %)Node-Red (%%)via the URL((% style="background-color:yellow" %)__//http:~/~/<hostname>:1880 or http:~/~/<local-IPV4-address>//__(%%)) in your browser.
	227
	228
	229	Such as (% style="background-color:yellow" %)__//http:~/~/dragino-54ff12:1880 or http:~/~/<Local-IPV4-Address>//__
	230
	231
	232	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/HP0C/WebHome/image-20220725172124-3.png?width=843&height=610&rev=1.1\|\|alt="image-20220725172124-3.png"]]
	233
	234
	235	= 5. How to configure the Lora Gateway =
	236
	237
	238	== 5.1 Access the Lora configuration page ==
	239
	240
61.1	241	Users can access the Lora configuration page by running the following command, then select the option ''serial port setup":
25.1	242
	243	(% class="box infomessage" %)
	244	(((
	245	root@dragino-2406ef:~~# minicom -s
	246	)))
	247
	248	[[image:image-20221029174637-2.png\|\|height="410" width="524"]]
	249
	250
	251	And then, change the setting:
	252
	253	(% class="box infomessage" %)
	254	(((
	255	Serial Device : /dev/ttyUSB0
	256
	257	Bps/Par/Bits : 9600 8N1
	258	)))
	259
	260
	261	(% style="color:red" %)Note: Enter the corresponding letter to change the configuration, like A,B,C(%%)
	262	(% style="color:red" %)[[image:image-20221029174703-3.png]]
	263
	264
	265	Enter AT+CFG in the interface to get the configuration,
	266
	267
41.1	268	(% class="box infomessage" %)
	269	(((
	270	AT+FRE=868.100,868.100 ~-~--> TX and RX frequency
	271	AT+GROUPMOD=0,0 ~-~--> TX and RX group
	272	AT+BW=0,0 ~-~--> TX and RX Bandwidth
	273	AT+SF=12,12 ~-~--> TX and RX Spreading Factor
	274	AT+POWER=14 ~-~--> TX Power Range
	275	AT+CRC=1,1 ~-~--> TX and RX CRC Type
	276	AT+HEADER=0,0 ~-~--> TX and RX Header Type
	277	AT+CR=1,1 ~-~--> TX and RX Coding Rate
	278	AT+IQ=0,0 ~-~--> TX and RX InvertIQ
	279	AT+PREAMBLE=8,8 ~-~--> TX and RX Preamble Length
	280	AT+SYNCWORD=0 ~-~--> Syncword(0: private，1: public)
	281	AT+RXMOD=65535,0 ~-~--> Rx Timeout and Reply mode
44.1	282	AT+RXDAFORM=1
41.1	283	)))
25.1	284
47.1	285
66.1	286	== 5.2 Example: LG01-V2 Peer-to-Peer ==
25.1	287
27.1	288
66.1	289	[[image:image-20221104102736-3.png\|\|height="282" width="723"]]
44.1	290
	291
83.1	292	The user can run the AT command to set the LG01-V2 RX window always open as a Receiver, The LG01-V2 can display the received data in the built-in server Node-Red, Here are the specific steps:
47.1	293
83.1	294	(% style="color:red" %)Prerequisites: (%%)The configuration of LG01-V2 and LA66 Shield must match and the LA66 Shield firmware is [[LA66 Peer-to-Peer firmware>>http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/Instruction%20for%20LA66%20Peer%20to%20Peer%20firmware/]], users can use AT+CFG to check all configurations.
47.1	295
57.1	296
83.1	297	=== Log Temperature Sensor(DHT11) and send data to LG01v2, show it in Node-RED. ===
57.1	298
74.1	299
83.1	300	(% style="color:red; font-weight:bold" %)LG01-V(% style="color:red" %)2 as Receiver: (configured as AT+RXMOD=65535,2)
74.1	301
	302	(% class="box infomessage" %)
	303	(((
83.1	304	LG01-V2 configuration:
	305
74.1	306	AT+FRE=868.100,868.100 ~-~--> TX and RX frequency set: 868100000
	307	AT+BW=0,0 ~-~--> TX and RX Bandwidth set: 125kHz
	308	AT+SF=12,12 ~-~--> TX and RX Spreading Factor set: SF12
	309	AT+POWER=14 ~-~--> TX Power Range set: 14dBm
	310	AT+CRC=1,1 ~-~--> TX and RX CRC Type
	311	AT+HEADER=0,0 ~-~--> TX and RX Header Type
	312	AT+CR=1,1 ~-~--> TX and RX Coding Rate
	313	AT+IQ=0,0 ~-~--> TX and RX InvertIQ
	314	AT+PREAMBLE=8,8 ~-~--> TX and RX Preamble Length set: 8
83.1	315	AT+SYNCWORD=0 ~-~--> Syncword(0: private，1: public)
74.1	316	AT+RXMOD=65535,0 ~-~--> Rx Timeout and Reply mode, RX window always open
	317	)))
	318
25.1	319
83.1	320	(% style="color:red" %)LA66 Shield as Sender:
25.1	321
83.1	322	(% class="box infomessage" %)
	323	(((
	324	LA66 Shield configuration:
25.1	325
83.1	326	AT+FRE=868.100,868.100 ~-~--> TX and RX frequency set: 868100000
	327	AT+BW=0,0 ~-~--> TX and RX Bandwidth set: 125kHz
	328	AT+SF=12,12 ~-~--> TX and RX Spreading Factor set: SF12
	329	AT+POWER=14 ~-~--> TX Power Range set: 14dBm
	330	AT+CRC=1,1 ~-~--> TX and RX CRC Type
	331	AT+HEADER=0,0 ~-~--> TX and RX Header Type
	332	AT+CR=1,1 ~-~--> TX and RX Coding Rate
	333	AT+IQ=0,0 ~-~--> TX and RX InvertIQ
	334	AT+PREAMBLE=8,8 ~-~--> TX and RX Preamble Length set: 8
	335	AT+SYNCWORD=0 ~-~--> Syncword(0: private，1: public)
	336	AT+RXMOD=6,0 ~-~--> Rx Timeout and Reply mode
	337	)))
	338	)))
25.1	339
	340
83.1	341	After the above configuration is complete, users can send test simulation data to check whether the configuration is correct, In LA66 sheild serial console send:(% style="color:red" %)(AT+SEND=1,hello world,2,3).
	342
	343	When LG01-V2 replies with ACK when it receives a packet sent by LA66 sheild.
	344
89.1	345	[[image:image-20221108164413-2.png]]
83.1	346
	347
	348	In the real-time log of LG01-V2：
	349
	350	[[image:image-20221108170314-3.png]]
	351
	352
	353	Hardware Connection
	354
	355	(% class="box infomessage" %)
	356	(((
	357	The DHT11 sensor connects to the LA66 Shield:
	358
	359	VCC <~-~--> 3.3V (Red line)
	360	DATA <~-~--> PIN8 (Purple line)
	361	GND <~-~--> GND (White line)
25.1	362	)))
	363
83.1	364	[[image:image-20221108170731-5.png\|\|height="588" width="441"]]
25.1	365
	366
91.1	367	==== 1. Open Arduino IDE ====
25.1	368
83.1	369	[[image:image-20221108172149-6.png\|\|height="650" width="542"]]
24.1	370
	371
91.1	372	==== 2. Open project ====
24.1	373
90.1	374
83.1	375	Users can download Arduino files from this link: [[attach:Log-Temperature-Sensor-and-send-data-to-Node-red.ino\|\|target="_blank"]]
	376
90.1	377	Then click Compile and Upload to LA66 Shield,
83.1	378
	379	[[image:image-20221108172432-7.png]]
	380
	381
90.1	382	==== 3. Open the Serial Monitor to check the LA66 Shield data ====
83.1	383
90.1	384
83.1	385	The LA66 Shield reads the temperature and humidity data from the sensor and sends it to LG01V2,
	386
89.1	387	[[image:image-20221108174840-8.png\|\|height="731" width="671"]]
83.1	388
89.1	389	[[image:image-20221108175113-9.png\|\|height="556" width="998"]]
83.1	390
	391
90.1	392	==== 4. Import the flow to the built-in server on LG01v2 ====
89.1	393
90.1	394
89.1	395	Users can import this example in Node-Red: [[attach:Log-Temperature-Sensor-and-send-data-to-node-red.json\|\|target="_blank"]]
	396
	397	[[image:image-20221108180334-10.png\|\|height="651" width="1141"]]
	398
	399
	400	The temperature and humidity chart is displayed in the built-in node-red UI
	401
90.1	402	Browser input: (% style="background-color:yellow" %)__//http:~/~/<local-IPV4-address>//__(%%)
89.1	403
	404	[[image:image-20221108180458-11.png\|\|height="402" width="1137"]]
	405
	406
83.1	407	= (% style="color:inherit; font-family:inherit; font-size:29px" %)6. How users can access LG01(%%)-V(% style="color:inherit; font-family:inherit; font-size:29px" %)2 using serial USB(%%) =
	408
	409
61.1	410	(% style="color:blue" %)USB TTL to LG01-V2 Connection:
24.1	411
	412
61.1	413	Port 1 of the UART on the LG01-V2 is GND
24.1	414
	415	(% class="box infomessage" %)
	416	(((
	417	TXD <~-~--> UART RXD (Gray line)
	418
	419	RXD <~-~--> UART TXD (White line)
	420
	421	GND <~-~--> GND (Black line)
	422	)))
	423
	424
61.1	425	LG01-V2 UART connection photo
24.1	426
	427	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/HP0C/WebHome/image-20220804163015-1.png?width=466&height=621&rev=1.1\|\|alt="image-20220804163015-1.png"]]
	428
	429
	430
	431	In the PC, you can use the serial port tool(such as [[putty>>url:http://www.chiark.greenend.org.uk/~~sgtatham/putty/download.html]] in Windows), you need to set the serial baud rate to (% style="color:blue" %)115200(%%) to access the serial console for LG01v2. LG01v2 will output system info once power on as below:
	432
	433
	434	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/HP0C/WebHome/image-20220804164928-3.png?width=332&height=320&rev=1.1\|\|alt="image-20220804164928-3.png"]]
	435
	436	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/HP0C/WebHome/image-20220804164747-2.png?width=594&height=622&rev=1.1\|\|alt="image-20220804164747-2.png"]]
	437
12.1	438
29.1	439	= 7. FAQ =
17.2	440
	441
61.1	442	== 7.1 How does LG01-V2 communicate with Lora shield (LoRa.h) ==
17.2	443
	444
61.1	445	This example describes how to use LG01-V2, LoRa Shield to set up a LoRa network
57.1	446
61.1	447	[[image:image-20221103152238-8.png\|\|height="251" width="654"]]
57.1	448
	449
61.1	450	(% style="color:red" %)Prerequisites: The configurations of LG01-V2 and Lora shield must match
38.1	451
61.1	452	LG01-V2 configuration:
38.1	453
48.1	454	(% class="box infomessage" %)
	455	(((
58.1	456	AT+FRE=868.100,868.100 ~-~--> TX and RX frequency set: 868100000
	457	AT+BW=0,0 ~-~--> TX and RX Bandwidth set: 125kHz
	458	AT+SF=12,12 ~-~--> TX and RX Spreading Factor set: SF12
48.1	459	AT+POWER=14 ~-~--> TX Power Range
	460	AT+CRC=1,1 ~-~--> TX and RX CRC Type
	461	AT+HEADER=0,0 ~-~--> TX and RX Header Type
	462	AT+CR=1,1 ~-~--> TX and RX Coding Rate
	463	AT+IQ=0,0 ~-~--> TX and RX InvertIQ
58.1	464	AT+PREAMBLE=8,8 ~-~--> TX and RX Preamble Length set: 8
	465	AT+SYNCWORD=0 ~-~--> Syncword(0: private，1: public), the corresponding Lora shield syncword is 0x12
	466	AT+RXMOD=65535,0 ~-~--> Rx Timeout and Reply mode,RX window always open
48.1	467	AT+RXDAFORM=1
	468	)))
38.1	469
	470	Lora shield configuration:
	471
	472	Lora Shield example: [[attach:LoRa_Shield_Sketch_For_MQTT.ino\|\|target="_blank"]] , [[attach:arduino-LoRa-master.zip\|\|target="_blank"]]
	473
	474	[[image:image-20221101161318-2.png]]
	475
	476
61.1	477	Test LG01-V2 to receive Lora Shield data:
38.1	478
	479	[[image:image-20221101161951-3.png]]
	480
	481
83.1	482	Test the LG01-V2 to send data:
38.1	483
	484	[[image:image-20221101162527-4.png]]
	485
	486
17.2	487	= (% style="color:inherit; font-family:inherit; font-size:29px" %)8. Supports(%%) =
	488
	489
	490	(((
	491	//If you are experiencing issues and can't solve them, you can send mail to [[support@dragino.com>>mailto:support@dragino.com]].//
	492	)))
	493
	494	(((
	495	//With your question as detailed as possible. We will reply and help you in the shortest.//
	496
	497
	498
	499	= 9. Reference =
	500
	501
	502	* Install Tago Core: Refer Install Tago Core in LPS8v2 in[[ Instruction>>doc:Main.Tago\.IO.WebHome]].
	503	* [[Advance OS Reference Guide for LPS8v2>>doc:Main.Armbian OS instruction.WebHome]].
	504
	505
	506	)))
	507
	508	= 10. Order Info =
	509
	510
	511	(% style="color:#0000ff" %)LPS8v2-XXX-YYY
	512
	513	(% style="color:#0000ff" %)XXX(% style="color:black" %): Frequency Band
	514
	515	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	516	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	517	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	518	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	519	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	520	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	521
	522	(% style="color:#0000ff" %)YYY(% style="color:black" %): 4G Cellular Option
	523
	524	* (% style="color:red" %)E(%%): EMEA, Korea, Thailand, India.
	525	* (% style="color:red" %)A(%%): North America/ Rogers/AT&T/T-Mobile.
	526	* (% style="color:red" %)AU(%%): Latin America, New Zeland, Taiwan
	527	* (% style="color:red" %)J(%%): Japan, DOCOMO/SoftBank/ KDDI
	528
	529	More info about valid bands, please see [[EC25-E product page>>url:https://www.quectel.com/product/ec25.htm]].
	530
	531
	532
	533	= 10. Manufacturer Info =
	534
	535
	536	Shenzhen Dragino Technology Development co. LTD
	537
	538	Room 202, Block B, BCT Incubation Bases (BaoChengTai), No.8 CaiYunRoad
	539
	540	LongCheng Street, LongGang District ; Shenzhen 518116,China
	541
	542
	543
	544	= 11. FCC Warning =
	545
	546
	547	(((
	548	This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
	549	)))
	550
	551	(((
	552	~-~- Reorient or relocate the receiving antenna.
	553	)))
	554
	555	(((
	556	~-~- Increase the separation between the equipment and receiver.
	557	)))
	558
	559	(((
	560	~-~- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	561	)))
	562
	563	(((
	564	~-~- Consult the dealer or an experienced radio/TV technician for help.
	565	)))
	566
	567
	568	(((
	569	Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	570	)))
	571
	572
	573	(((
	574	The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.
	575
	576
	577	)))
	578
	579	~)~)~)

Wiki source code of LG01v2 -- LoRa Gateway User Manual

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