Last modified by Xiaoye on 2024/09/21 08:44
<
From version < 83.3 >
edited by Xiaoling
on 2022/08/23 09:33
To version < 64.2 >
edited by Xiaoye
on 2022/07/25 19:49
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Title
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1 -LPS8v2 LoRaWAN Indoor Gateway User Manual
1 +LPS8v2 LoRaWAN Indoor Gateway
Author
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1 -XWiki.Xiaoling
1 +XWiki.Xiaoye
Content
... ... @@ -1,9 +2,8 @@
1 -(% style="text-align:center" %)
2 2  [[image:image-20220620202334-2.png||height="467" width="809"]]
3 3  
4 4  
5 5  (((
6 -
5 +**LPS8v2 User Manual**
7 7  
8 8  
9 9  )))
... ... @@ -12,66 +12,44 @@
12 12  
13 13  {{toc/}}
14 14  
15 -
16 -
17 -
18 -
19 19  = **1. Introduction** =
20 20  
21 -
22 22  == **1.1 What is LPS8v2** ==
23 23  
24 -
25 25  (((
26 -(((
27 27  The LPS8v2 is an (% style="color:green" %)**open-source LoRaWAN 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.
28 -)))
29 29  
30 -(((
31 31  The LPS8v2 is fully compatible with LoRaWAN protocol. It supports different kinds of LoRaWAN Network Connections such as: (% style="color:green" %)**Semtech UDP Packet Forwarder, LoRaWAN Basic Station, ChirpStack MQTT Bridge**(%%), and so on. This makes LPS8V2 work with most LoRaWAN platforms in the market.
32 -)))
33 33  
34 -(((
35 35  LPS8v2 also includes a (% style="color:green" %)**built-in LoRaWAN Server and IoT server**(%%), which provide the possibility for the system integrator to deploy the IoT service without cloud service or 3rd servers.
36 -)))
37 37  
38 -(((
39 39  Different countries use different LoRaWAN frequency bands. LPS8v2 has these bands pre-configured. Users can also customize the frequency bands to use in their own LoRa network.
40 -)))
41 41  
42 -(((
43 43  LPS8v2 supports (% style="color:green" %)**remote management**(%%). System Integrator can easy to remote monitor the gateway and maintain it.
44 -)))
45 45  
46 46  
47 -
48 48  == **1.2 Specifications** ==
49 49  
32 +**Hardware System:**
50 50  
51 -(% style="color:#037691" %)**Hardware System:**
52 -
53 53  * CPU: Quad-core Cortex-A7 1.2Ghz
54 54  * RAM: 512MB
55 55  * eMMC: 4GB
56 56  
57 -(% style="color:#037691" %)**Interface:**
38 +**Interface:**
58 58  
59 59  * 10M/100M RJ45 Ports x 1
60 60  * Multi-Channel LoRaWAN Wireless
61 61  * WiFi 802.11 b/g/n
62 62  
63 -(% style="color:#037691" %)**Operating Condition:**
44 +**Operating Condition:**
64 64  
65 65  * Work Temperature: -20 ~~ 65°C
66 66  * Storage Temperature: -20 ~~ 65°C
67 67  * Power Input: 5V, 2A, DC
68 68  
69 -
70 -
71 -
72 72  == **1.3 Features** ==
73 73  
74 -
75 75  * Open Source Debian system
76 76  * Managed by Web GUI, SSH via WAN or WiFi
77 77  * Remote Management
... ... @@ -84,87 +84,73 @@
84 84  ** Semtech UDP Packet Forwarder
85 85  ** LoRaWAN Basic Station
86 86  ** ChirpStack-Gateway-Bridge (MQTT)
87 -* Built-in (% style="color:#037691" %)//**The Things Network**//(%%) local LoRaWAN server
88 -* Built-in  (% style="color:#037691" %)//**Node-Red**// (%%)local Application server
64 +* Built-in //**The Things Network**// local LoRaWAN server
65 +* Built-in  //**Node-Red**// local Application server
89 89  
90 -
91 -
92 -
93 93  == **1.4 Block Diagram** ==
94 94  
95 95  
96 -
97 97  == **1.5 LED Indicators** ==
98 98  
99 -
100 100  LPS8-V2 has totally four LEDs, They are:
101 101  
102 102  
103 -(% style="color:blue" %)//**➢ Power LED**//(%%)//: This RED LED will be solid if the device is properly powered//
75 +//**➢ Power LED**: This RED LED will be solid if the device is properly powered//
104 104  
105 -(% style="color:blue" %)//**➢ LoRa LED**//(%%)//: This RGB LED will blink GREEN when the LoRaWAN module starts or transmit a packet//
106 106  
107 -(% style="color:blue" %)//**➢ SYS LED**//(%%)//: This RGB LED will show different colors in different states~://
78 +//**➢ LoRa LED**: This RGB LED will blink GREEN when the LoRaWAN module starts or transmit a packet//
108 108  
109 -// ✓ **SOLID BLUE:** The device is alive with a LoRaWAN server connection.//
110 110  
111 -// ✓ **BLINKING BLUE:** a) Device has internet connection but no LoRaWAN Connection. or b) Device is in booting stage, in this stage, it will BLINKING BLUE for several seconds and then with SOLID RED and BLINKING BLUE together//
81 +//**➢ SYS LED**: This RGB LED will show different colors in different states~://
112 112  
113 -// ✓** SOLID RED:** Device doesn't have an Internet connection.//
83 +// ✓ SOLID BLUE: The device is alive with a LoRaWAN server connection.//
114 114  
115 -(% style="color:blue" %)//**➢ ETH LED**//(%%)//: This LED shows the ETH interface connection status.//
85 +// ✓ BLINKING BLUE: a) Device has internet connection but no LoRaWAN Connection. or b) Device is in booting stage, in this stage, it will BLINKING BLUE for several seconds and then with SOLID RED and BLINKING BLUE together//
116 116  
87 +// ✓ SOLID RED: Device doesn’t have an Internet connection.//
117 117  
118 118  
119 -= **2. Quick Start** =
90 +//**➢ ETH LED**: This LED shows the ETH interface connection status.//
120 120  
121 121  
93 += **2. Quick Start** =
94 +
122 122  The LPS8-V2 supports network access via Ethernet or Wi-Fi connection and runs without a network.
123 123  
124 124  In most cases, the first thing you need to do is make the lps8-v2 accessible to the network.
125 125  
126 126  
127 -
128 128  == **2.1 Connects to the network and accesses the gateway Web UI** ==
129 129  
130 130  
131 131  == **2.1.1 connect the network.** ==
132 132  
105 +=== ===
133 133  
134 -=== (% style="color:blue" %)**Method 1**(%%):  Connect via Ethernet with DHCP IP from the router ===
107 +=== **Method 1**: Connect via Ethernet with DHCP IP from the router ===
135 135  
136 -
137 -(((
138 138  Connect the LPS8-V2 Ethernet port to your router and LPS8 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 LPS8-V2.
139 -)))
140 140  
141 -(((
142 142  You can also use this IP to connect.
143 -)))
144 144  
145 145  [[image:image-20220622100129-1.png||height="332" width="1263"]]
146 146  
147 147  
116 +=== **Method 2**: Connect via WiFi with DHCP IP from the router ===
148 148  
149 -=== (% style="color:blue" %)**Method 2**(%%):  Connect via WiFi with DHCP IP from the router ===
150 150  
151 -
152 152  [[image:image-20220622100542-2.png||height="369" width="1256"]]
153 153  
154 154  
155 -(((
156 156  The LPS8-V2 has a fall-back IP address on its WAN port. you have to access the gateway Web-UI to configure the WiFi connection via the fallback IP address.
157 -)))
158 158  
159 159  
125 +**Steps to connect via fallback IP:**
160 160  
161 -(% style="color:#037691" %)**Steps to connect via fallback IP:**
127 +~1. Connect PC’s Ethernet port to LPS8-V2's WAN port
162 162  
163 -~1. Connect PC's Ethernet port to LPS8-V2's WAN port
164 -
165 165  2. Configure PC's Ethernet port has  IP: 172.31.255.253 and Netmask: 255.255.255.252
166 166  
167 -
168 168  [[image:image-20220622101433-4.png]]
169 169  
170 170  
... ... @@ -174,50 +174,41 @@
174 174  [[image:image-20220622102210-5.png||height="569" width="1039"]]
175 175  
176 176  
177 -Fill in the WiFi information by checking the box and clicking (% style="color:red" %)**Save&Apply**
140 +Fill in the WiFi information by checking the box and clicking **Save&Apply**
178 178  
179 179  
180 180  [[image:image-20220622102702-6.png]]
181 181  
182 182  
183 -
184 184  **Wi-Fi configuration successful**
185 185  
186 186  
187 187  [[image:image-20220622102847-7.png]]
188 188  
189 -
190 190  [[image:image-20220622102901-8.png||height="513" width="1011"]]
191 191  
192 192  
193 193  
155 +
194 194  == **2.2 The LPS8-V2 is registered and connected to The Things Network** ==
195 195  
196 196  
197 197  === **2.2.1 Select your area frequency** ===
198 198  
199 -
200 -(((
201 201  First, you need to set the frequency plan in LPS8-V2 to match the end node we use, so to receive the LoRaWAN packets from the LoRaWAN sensor.
202 202  
203 -
204 -)))
205 -
206 206  [[image:image-20220622103332-9.png]]
207 207  
208 208  
209 -
210 210  === **2.2.2 Get the only gateway EUI** ===
211 211  
212 -
213 213  Every LPS8-V2 has a unique gateway id. The ID can be found on LoRaWAN Semtech page:
214 214  
215 215  [[image:image-20220622103355-10.png]]
216 216  
217 217  
218 -(% style="color:red" %)**Note: Choose the cluster that corresponds to a specific Gateway server address**
173 +**Note: Choose the cluster that corresponds to a specific Gateway server address**
219 219  
220 -
221 221  **➢ Europe 1:**  corresponding Gateway server address:  **eu1.cloud.thethings.network**
222 222  
223 223  **➢ North America 1:**  corresponding Gateway server address:  **nam1.cloud.thethings.network**
... ... @@ -233,12 +233,10 @@
233 233  
234 234  == 2.2.3 Register the gateway to The Things Network ==
235 235  
236 -
237 237  **Login to The Things Network**
238 238  
239 239  [[https:~~/~~/console.cloud.thethings.network/>>https://console.cloud.thethings.network/]]
240 240  
241 -
242 242  **Add the gateway**
243 243  
244 244  [[image:image-20220622104252-13.png||height="511" width="953"]]
... ... @@ -247,16 +247,13 @@
247 247  **Get it online**
248 248  
249 249  
250 -
251 251  = **3. Web Configure Pages** =
252 252  
253 253  
254 254  == **3.1 Home** ==
255 255  
256 -
257 257  //Shows the system running status~://
258 258  
259 -
260 260  == **3.2 LoRa Settings** ==
261 261  
262 262  
... ... @@ -267,20 +267,19 @@
267 267  
268 268  //Different LPS8v2 hardware versions can support different frequency ranges~://
269 269  
270 -* (% style="color:#0000ff" %)//**868**//(% style="color:black" %)//: valid frequency: 863Mhz ~~ 870Mhz. for bands EU868, RU864, IN865, or KZ865.//
219 +* (% style="color:#0000ff" %)//**868**//(% style="color:black" %)//: valid frequency: 863Mhz ~~ 870Mhz. for bands EU868, RU864, IN865 or KZ865.//
271 271  * (% style="color:#0000ff" %)//**915**//(% style="color:black" %)//: valid frequency: 902Mhz ~~ 928Mhz. for bands US915, AU915, AS923 or KR920//
272 272  
273 273  (% class="wikigeneratedid" %)
274 -//After the user choose the frequency plan,  the user can see the actual frequency is used by checking the page (% style="color:#037691" %)**LogRead ~-~-> LoRa Log**//
223 +//After the user choose the frequency plan,  the user can see the actual frequency is used by checking the page **LogRead ~-~-> LoRa Log**//
275 275  
276 276  (% class="wikigeneratedid" %)
277 277  [[image:image-20220616110739-1.png||height="372" width="682"]]
278 278  
279 279  
280 -(((
281 -(% style="color:red" %)//**Note *: See this instruction for how to customize the frequency band: **//(%%)**//__[[How to customized LoRaWAN frequency band - DRAGINO>>url:http://8.211.40.43/xwiki/bin/view/Main/How%20to%20customized%20LoRaWAN%20frequency%20band/]]__//**
282 -)))
229 +//**Note ***: See this instruction for how to customize the frequency band~://
283 283  
231 +//__[[How to customized LoRaWAN frequency band - DRAGINO>>url:http://8.211.40.43/xwiki/bin/view/Main/How%20to%20customized%20LoRaWAN%20frequency%20band/]]__//
284 284  
285 285  
286 286  == **3.3 LoRaWAN Settings** ==
... ... @@ -294,7 +294,6 @@
294 294  [[image:image-20220616111932-2.png||height="516" width="672"]]
295 295  
296 296  
297 -
298 298  === **3.3.2 LoRaWAN ~-~-> LoRaWAN Basic Station** ===
299 299  
300 300  
... ... @@ -303,12 +303,9 @@
303 303  [[image:image-20220616113246-3.png||height="396" width="672"]]
304 304  
305 305  
306 -(((
307 307  Please see this instruction to know more detail and a demo for how to use of LoRaWAN Basic Station: __[[Use of LoRaWAN Basic Station - DRAGINO>>url:http://8.211.40.43/xwiki/bin/view/Main/Use%20of%20LoRaWAN%20Basic%20Station/]]__
308 -)))
309 309  
310 310  
311 -
312 312  == **3.4 Network Settings** ==
313 313  
314 314  
... ... @@ -318,14 +318,12 @@
318 318  [[image:image-20220616114756-4.png||height="251" width="669"]]
319 319  
320 320  
321 -
322 322  === **3.4.2 Network ~-~-> System Status** ===
323 323  
324 324  
325 -[[image:image-20220820134112-2.png||height="539" width="668"]]
268 +[[image:image-20220616115229-5.png||height="548" width="665"]]
326 326  
327 327  
328 -
329 329  === **3.4.3 Network ~-~-> Firewall** ===
330 330  
331 331  
... ... @@ -332,7 +332,6 @@
332 332  [[image:image-20220616115351-6.png||height="244" width="661"]]
333 333  
334 334  
335 -
336 336  == **3.5 System** ==
337 337  
338 338  
... ... @@ -342,7 +342,6 @@
342 342  Shows the system info:
343 343  
344 344  
345 -
346 346  === **3.5.2 System ~-~-> Backup/Restore** ===
347 347  
348 348  
... ... @@ -350,40 +350,22 @@
350 350  
351 351  
352 352  
353 -= **4. Build-in Server** =
293 += **4. Build-in LoRaWAN Network  Server ~-~- The Things Network - Stack (TTN-V3)** =
354 354  
355 -The default factory version of LPS8-V2 is installed with the built-in Applicant server: (% style="color:blue" %)**Node-Red, and**(%%) LoRaWAN Server: (% style="color:blue" %)**The Things Network - Stack (Open Source 3.19 Version).**
356 356  
357 -[[image:image-20220820115644-1.png]]
296 +The default factory version of LPS8-V2 is installed with the Built-in LoRaWAN Server: **The Things Network - Stack (Open Source 3.19 Version).**
358 358  
298 +You can access the gateway's built-in LNS server of **The Things Network - Stack **via the URL((% class="mark" %)__**//http:~/~/<hostname>:8080 or http:~/~/<local-IPV4-address> //**__(%%)) in your browser.
359 359  
360 -Note:
361 361  
362 - **Path**: System ~-~-> Built-in Server
301 +Such as (% class="mark" %)__**//http:~/~/dragino-54ff12:8080  or http:~/~/<Local-IPV4-Address>//**__
363 363  
364 364  
365 -**Troubleshooting:**
366 -
367 -
368 -**~ 1. URL does not jump properly**
369 -
370 - For the ttn-stack, you can click the update the URL which will update the configuration where change the hotsname to the current local IP address as the URL.
371 -
372 - For the Node-Red, you can use the local IP address and the port is 18880 to access it.
373 -
374 -
375 -== **4.1 LoRaWAN Network  Server ~-~- The Things Network - Stack (TTN-V3)** ==
376 -
377 -You can access the gateway's built-in LNS server of **The Things Network - Stack **via the URL( (% style="background-color:yellow" %)__**//http:~/~/<hostname>:8080 or http:~/~/<local-IPV4-address> //**__(%%)) in your browser.
378 -
379 -Such as  (% style="background-color:yellow" %)__**//http:~/~/dragino-54ff12:8080  or http:~/~/<Local-IPV4-Address>//**__
380 -
381 -
382 382  Login account:
383 383  
384 -**User ID: ** ** (% style="background-color:yellow" %)admin(%%)**
306 +**User ID: ** (% class="mark" %)admin
385 385  
386 -**Password: ** ** (% style="background-color:yellow" %)dragino(%%)**
308 +**Password: ** (% class="mark" %)dragino
387 387  
388 388  
389 389  [[image:image-20220725171719-1.png||height="570" width="769"]]
... ... @@ -390,51 +390,34 @@
390 390  
391 391  
392 392  
393 -== **4.2. Application Server ~-~- Node-Red** ==
315 += **5. Build-in Application Server ~-~- Node-Red** =
394 394  
395 395  
396 -You can access the gateway's built-in AS server of **Node-Red **via the URL((% style="background-color:yellow" %)__**//http:~/~/<hostname>:8080 or http:~/~/<local-IPV4-address>//**__(%%)) in your browser.
318 +The default factory version of LPS8-V2 is installed with the built-in Applicant server: **Node-Red.**
397 397  
320 +You can access the gateway's built-in AS server of **Node-Red **via the URL((% class="mark" %)__**//http:~/~/<hostname>:8080 or http:~/~/<local-IPV4-address> //**__(%%)) in your browser.
398 398  
399 -Such as (% style="background-color:yellow" %)__**//http:~/~/dragino-54ff12:8080  or [[http:~~/~~/<Local-IPV4-Address~>>>http://<Local-IPV4-Address>]]//**__
400 400  
323 +Such as (% class="mark" %)__**//http:~/~/dragino-54ff12:8080  or http:~/~/<Local-IPV4-Address>//**__
401 401  
402 402  [[image:image-20220725172124-3.png||height="610" width="843"]]
403 403  
404 404  
405 405  
406 -= **6. How users can access LPS8v2 using serial USB** =
329 +**Note:  (% class="mark" %)A portion of the sample devices that were not installed with Node-Red.
330 + You can complete the installation manually with the following command.(%%)**
407 407  
408 408  
409 -**USB TTL to LPS8v2  Connection:**
410 -
411 -Port 1 of the UART on the LPS8v2 is GND
412 -
413 413  (% class="box infomessage" %)
414 414  (((
415 -TXD  <~-~--> UART RXD (Gray line)
416 -
417 -RXD  <~-~--> UART TXD (White line)
418 -
419 -GND <~-~--> GND (Black line)
335 +(% class="mark" %)cd /tmp && wget  [[http:~~/~~/repo.dragino.com/release/tool/nodered/autoinstall_nodered.sh>>url:http://repo.dragino.com/release/tool/nodered/autoinstall_nodered.sh]]
336 +(% class="mark" %)chmod +x /tmp/autoinstall_nodered.sh && /tmp/autoinstall_nodered.sh
420 420  )))
421 421  
422 422  
423 -**LPS8v2 UART connection photo**
424 424  
425 -[[image:image-20220804163015-1.png||height="621" width="466"]]
426 -
427 -
428 -
429 -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 LPS8v2. LPS8v2 will output system info once power on as below:
430 -
431 -[[image:image-20220804164928-3.png||height="320" width="332"]]
432 -
433 -[[image:image-20220804164747-2.png||height="622" width="594"]]
434 -
435 435  (% style="color:inherit; font-family:inherit; font-size:29px" %)**10. Supports**
436 436  
437 -
438 438  (((
439 439  **//If you are experiencing issues and can't solve them, you can send mail to [[support@dragino.com>>mailto:support@dragino.com]].//**
440 440  )))
... ... @@ -443,12 +443,9 @@
443 443  **//With your question as detailed as possible. We will reply and help you in the shortest.//**
444 444  
445 445  
446 -
447 447  = **11 Reference** =
448 448  
449 -
450 450  * Install Tago Core: Refer **Install Tago Core in LPS8v2** in[[ Instruction>>doc:Main.Tago\.IO.WebHome]].
451 -* [[Advance OS Reference Guide for LPS8v2>>doc:Main.Armbian OS instruction.WebHome]].
452 452  
453 453  
454 454  )))
... ... @@ -455,32 +455,29 @@
455 455  
456 456  = **12. Order Info** =
457 457  
458 -
459 459  (% style="color:#0000ff" %)**LPS8v2-XXX-YYY**
460 460  
461 461  (% style="color:#0000ff" %)**XXX**(% style="color:black" %): Frequency Band
462 462  
463 -* (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
464 -* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
465 -* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
466 -* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
467 -* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
468 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
364 +* **AS923**: LoRaWAN AS923 band
365 +* **AU915**: LoRaWAN AU915 band
366 +* **EU868**: LoRaWAN EU868 band
367 +* **KR920**: LoRaWAN KR920 band
368 +* **US915**: LoRaWAN US915 band
369 +* **IN865**: LoRaWAN IN865 band
469 469  
470 470  (% style="color:#0000ff" %)**YYY**(% style="color:black" %): 4G Cellular Option
471 471  
472 -* (% style="color:red" %)**E**(%%):  EMEA, Korea, Thailand, India.
473 -* (% style="color:red" %)**A**(%%):  North America/ Rogers/AT&T/T-Mobile.
474 -* (% style="color:red" %)**AU**(%%): Latin America, New Zeland, Taiwan
475 -* (% style="color:red" %)**J**(%%):  Japan, DOCOMO/SoftBank/ KDDI
373 +* ** E**: EMEA, Korea, Thailand, India.
374 +* ** A**: North America/ Rogers/AT&T/T-Mobile.
375 +* ** AU**: Latin America, New Zeland, Taiwan
376 +* ** J**: Japan, DOCOMO/SoftBank/ KDDI
476 476  
477 477  More info about valid bands, please see [[EC25-E product page>>url:https://www.quectel.com/product/ec25.htm]].
478 478  
479 479  
480 -
481 481  = **13. Manufacturer Info** =
482 482  
483 -
484 484  **Shenzhen Dragino Technology Development co. LTD**
485 485  
486 486  Room 202, Block B, BCT Incubation Bases (BaoChengTai),  No.8 CaiYunRoad
... ... @@ -488,37 +488,21 @@
488 488  LongCheng Street, LongGang District ; Shenzhen 518116,China
489 489  
490 490  
491 -
492 492  = **14. FCC Warning** =
493 493  
494 -
495 -(((
496 496  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:
497 -)))
498 498  
499 -(((
500 500  ~-~- Reorient or relocate the receiving antenna.
501 -)))
502 502  
503 -(((
504 504  ~-~- Increase the separation between the equipment and receiver.
505 -)))
506 506  
507 -(((
508 508  ~-~- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
509 -)))
510 510  
511 -(((
512 512  ~-~- Consult the dealer or an experienced radio/TV technician for help.
513 -)))
514 514  
515 515  
516 -(((
517 517  Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
518 -)))
519 519  
520 520  
521 -(((
522 522  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.
523 523  )))
524 -)))
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