Version 137.1 by Xiaoye on 2023/01/11 09:48
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2 [[image:image-20220620202334-2.png||height="467" width="809"]]
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9 )))
10
11 **Table of Contents：**
12
13 {{toc/}}
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17
18
19 = 1. Introduction =
20
21 == 1.1 What is LPS8v2 ==
22
23
24 (((
25 (((
26 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.
27 )))
28
29 (((
30 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.
31 )))
32
33 (((
34 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.
35 )))
36
37 (((
38 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.
39 )))
40
41 (((
42 LPS8v2 supports (% style="color:green" %)**remote management**(%%). System Integrator can easy to remote monitor the gateway and maintain it.
43 )))
44
45
46 == 1.2 Specifications ==
47
48
49 (% style="color:#037691" %)**Hardware System:**
50
51 * CPU: Quad-core Cortex-A7 1.2Ghz
52 * RAM: 512MB
53 * eMMC: 4GB
54
55 (% style="color:#037691" %)**Interface:**
56
57 * 10M/100M RJ45 Ports x 1
58 * Multi-Channel LoRaWAN Wireless
59 * WiFi 802.11 b/g/n
60
61 (% style="color:#037691" %)**Operating Condition:**
62
63 * Work Temperature: -20 ~~ 65°C
64 * Storage Temperature: -20 ~~ 65°C
65 * Power Input: 5V, 2A, DC
66
67
68 == 1.3 Features ==
69
70
71 * Open Source Debian system
72 * Managed by Web GUI, SSH via WAN or WiFi
73 * Remote Management
74 * Auto-provisioning for batch deployment and management
75 * LoRaWAN Gateway
76 * 10 programmable parallel demodulation paths
77 * Pre-configured to support different LoRaWAN regional settings.
78 * Allow customizing LoRaWAN regional parameters.
79 * Different kinds of LoRaWAN Connections such as
80 ** Semtech UDP Packet Forwarder
81 ** LoRaWAN Basic Station
82 ** ChirpStack-Gateway-Bridge (MQTT)
83 * Built-in (% style="color:#037691" %)//**The Things Network**//(%%) local LoRaWAN server
84 * Built-in  (% style="color:#037691" %)//**Node-Red**// (%%)local Application server
85
86
87 == 1.4 Block Diagram ==
88
89
90
91 == 1.5 LED Indicators ==
92
93
94 LPS8-V2 has totally four LEDs, They are:
95
96
97 (% style="color:blue" %)//**➢ Power LED**//(%%)//: This RED LED will be solid if the device is properly powered//
98
99 (% style="color:blue" %)//**➢ ETH LED**//(%%)//:  This RGB LED will blink GREEN when the ETH port is connecting//
100
101 (% style="color:blue" %)//**➢ SYS LED**//(%%)//:  This RGB LED will show different colors in different states~://
102
103 // ✓ **SOLID GREEN:** The device is alive with a LoRaWAN server connection.//
104
105 // ✓ **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//
106
107 // ✓** SOLID RED:** Device doesn't have an Internet connection.//
108
109 (% style="color:blue" %)//**➢ WIFI LED**//(%%)//: This LED shows the WIFI interface connection status.//
110
111
112 == 1.6 Button Intruction ==
113
114
115 LPS8-V2 has a black toggle button, which is:
116
117
118 (% style="color:blue" %)**//➢ //Long press 4-5s  : **(%%)the gateway will reload the Network and Initialize wifi configuration
119
120 // **LED status: ** ETH LED will BLINKIND BULE Until the reload is finished.//
121
122
123 (% style="color:blue" %)//**➢ **//**Long press more than 10s:**(%%)**    **//the gateway will restore the factory settings.//
124
125 //**LED status: ** ETH LED will SOLID BULE Until the restore is finished.//
126
127
128 = 2. Quick Start =
129
130
131 The LPS8-V2 supports network access via Ethernet or Wi-Fi connection and runs without a network.
132
133 In most cases, the first thing you need to do is make the lps8-v2 accessible to the network.
134
135
136 == 2.1 Connects to the network and accesses the gateway Web UI ==
137
138 == 2.1.1 connect the network ==
139
140
141 === (% style="color:blue" %)**Method 1**(%%):  Connect via Ethernet with DHCP IP from the router ===
142
143
144 (((
145 Connect the LPS8-V2 Ethernet port to your router and LPS8-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 LPS8-V2.
146 )))
147
148 (((
149 You can also use this IP to connect.
150 )))
151
152 [[image:image-20220622100129-1.png||height="332" width="1263"]]
153
154
155 === (% style="color:blue" %)**Method 2**(%%):  Connect via LPS8-V2 Fallback IP ===
156
157
158 [[image:image-20230107084650-2.png||height="310" width="839"]]
159
160
161 (% style="color:blue" %)**Steps to connect via fallback IP:**
162
163 ~1. Connect the PC's Ethernet port to LPS8-V2's WAN port
164
165 2. Configure PC's Ethernet port has IP: 172.31.255.253 and Netmask: 255.255.255.252
166
167 As in the below photo:
168
169 [[image:image-20230107085904-4.png||height="443" width="361"]]
170
171 3. In the PC, use IP address 172.31.255.254 to access the LPS8-V2 via Web or Console.
172
173
174 [[image:image-20230111094247-2.png||height="619" width="1250"]]
175
176
177
178 === (% style="color:blue" %)**Method 3**(%%):  Connect via WiFi with DHCP IP from the router ===
179
180
181 [[image:image-20220622100542-2.png||height="369" width="1256"]]
182
183
184 Fill in the WiFi information by checking the box and clicking (% style="color:red" %)**Save&Apply**
185
186
187 [[image:image-20220622102702-6.png]]
188
189
190
191 **Wi-Fi configuration successful**
192
193
194 [[image:image-20220622102847-7.png]]
195
196
197 [[image:image-20220622102901-8.png||height="476" width="938"]]
198
199
200 == 2.1.2 Access Configure Web UI ==
201
202
203 **Web Interface**
204
205 Open a browser on the PC and type the LPS8-V2 ip address (depends on your connect method)
206
207
208 [[(% style="background-color:yellow" %)**//http:~~/~~/IP_ADDRESS //**>>http://IP_ADDRESS]](%%) or (% style="background-color:yellow" %)//**[[http:~~/~~/172.31.255.254>>http://172.31.255.254(]]**//(Fallback IP)
209
210 You will see the login interface of LPS8-V2 as shown below.
211
212 The account details for Web Login are:
213
214 (% style="color:#4f81bd" %)**User Name: root**
215
216 (% style="color:#4f81bd" %)**Password:   dragino**
217
218 [[image:image-20230106153501-1.png||height="367" width="894"]]
219
220
221 == 2.2 The LPS8-V2 is registered and connected to The Things Network ==
222
223 === 2.2.1 Select your area frequency ===
224
225
226 (((
227 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.
228
229
230 )))
231
232 [[image:image-20220622103332-9.png||height="485" width="938"]]
233
234
235 === 2.2.2 Get the only gateway EUI ===
236
237
238 Every LPS8-V2 has a unique gateway id. The ID can be found on LoRaWAN Semtech page:
239
240
241 [[image:image-20220622103355-10.png||height="698" width="949"]]
242
243
244 (% style="color:red" %)**Note: Choose the cluster that corresponds to a specific Gateway server address**
245
246
247 **➢ Europe 1:**  corresponding Gateway server address:  **eu1.cloud.thethings.network**
248
249 **➢ North America 1:**  corresponding Gateway server address:  **nam1.cloud.thethings.network**
250
251 **➢ Australia 1: ** corresponding Gateway server address:  **au1.cloud.thethings.network**
252
253 **➢ Legacy V2 Console:** TTN v2 shuts down in December 2021
254
255
256 [[image:image-20220622103956-12.png]]
257
258
259 == 2.2.3 Register the gateway to The Things Network ==
260
261
262 **Login to The Things Network**
263
264 [[https:~~/~~/console.cloud.thethings.network/>>https://console.cloud.thethings.network/]]
265
266
267 **Add the gateway**
268
269 [[image:image-20220622104252-13.png||height="511" width="953"]]
270
271
272 **Get it online**
273
274
275 = 3. Web Configure Pages =
276
277 == 3.1 Home ==
278
279
280 //Shows the system running status~://
281
282 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/HP0C/WebHome/image-20220622102901-8.png?rev=1.1||alt="image-20220622102901-8.png" height="476" width="939"]]
283
284
285 == 3.2 LoRa Settings ==
286
287 === 3.2.1 LoRa ~-~-> LoRa ===
288
289
290 //This page shows the LoRa Radio Settings. There is a set of default frequency bands according to LoRaWAN protocol, and users can customize the band* as well.//
291
292 //Different LPS8v2 hardware versions can support different frequency ranges~://
293
294 * (% style="color:#0000ff" %)//**868**//(% style="color:black" %)//: valid frequency: 863Mhz ~~ 870Mhz. for bands EU868, RU864, IN865, or KZ865.//
295 * (% style="color:#0000ff" %)//**915**//(% style="color:black" %)//: valid frequency: 902Mhz ~~ 928Mhz. for bands US915, AU915, AS923 or KR920//
296
297 (% class="wikigeneratedid" %)
298 //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**//
299
300
301 (% class="wikigeneratedid" %)
302 [[image:image-20220616110739-1.png||height="372" width="682"]]
303
304
305 (((
306 (% style="color:red" %)//**Note *: See this instruction for how to customize the frequency band: **//(%%)**//__[[How to customized LoRaWAN frequency band - DRAGINO>>doc:Main.How to customized LoRaWAN frequency band.WebHome]]__//**
307 )))
308
309
310 == 3.3 LoRaWAN Settings ==
311
312 === 3.3.1 LoRaWAN ~-~-> LoRaWAN Semtech UDP ===
313
314
315 //This page is for the connection set up to a general LoRaWAN Network server such as [[TTN>>url:http://www.thethingsnetwork.org/]], [[ChirpStack>>url:https://www.chirpstack.io/]], etc.//
316
317
318 [[image:image-20220616111932-2.png||height="516" width="672"]]
319
320
321 === 3.3.2 LoRaWAN ~-~-> LoRaWAN Basic Station ===
322
323
324 //This page is for the connection set up to the TTN Basic Station, AWS-IoT, etc.//
325
326
327 [[image:image-20220616113246-3.png||height="396" width="672"]]
328
329
330 (((
331 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>>doc:Main.Use of LoRaWAN Basic Station.WebHome]]__
332 )))
333
334
335 == 3.4 Network Settings ==
336
337 === 3.4.1 Network ~-~-> WiFi ===
338
339
340 [[image:image-20220616114756-4.png||height="251" width="669"]]
341
342
343 === 3.4.2 Network ~-~-> System Status ===
344
345
346 [[image:image-20220820134112-2.png||height="539" width="668"]]
347
348
349 === 3.4.3 Network ~-~-> Firewall ===
350
351
352 [[image:image-20220616115351-6.png||height="244" width="661"]]
353
354
355 == 3.5 System ==
356
357 === 3.5.1 System ~-~-> System Overview ===
358
359
360 Shows the system info:
361
362 [[image:image-20220917144512-5.png||height="618" width="853"]]
363
364
365 === 3.5.2 System ~-~-> System General ===
366
367
368 In the System-> System General interface, Users can customize the configuration System Password and set Timezone.
369
370 [[image:image-20230107084158-1.png||height="543" width="844"]]
371
372
373 === 3.5.3 System ~-~-> Backup/Restore ===
374
375
376 [[image:image-20220917144725-6.png||height="208" width="869"]]
377
378
379 === 3.5.4 System ~-~-> Remoteit ===
380
381
382 In the System-> Remoteit interface, users can configure the gateway to be accessed remotely via Remote.it.
383
384
385 the users can refer to this link to configure them: **[[Monitor & Remote Access Gateway>>http://wiki.dragino.com/xwiki/bin/view/Main/Monitor%20%26%20Remote%20Access%20Gateway/?Remote%20Access#H2.1A0RemoteAccessviaRemote.it.]]**
386
387 [[image:image-20221230092303-2.png]]
388
389
390 = 4. Build-in Server =
391
392
393 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).**
394
395
396 [[image:image-20220820115644-1.png||height="217" width="778"]]
397
398
399 (% style="color:red" %)**Note:**
400
401 **Path**: System ~-~-> Built-in Server
402
403
404 **Troubleshooting:**
405
406
407 **~ 1. URL does not jump properly**
408
409 For the ttn-stack, you can click the update the URL which will update the configuration where change the hostname to the current local IP address as the URL.
410
411 For the Node-Red, you can use the local IP address and the port is 1880 to access it.
412
413
414 == 4.1 LoRaWAN Network  Server ~-~- The Things Network - Stack (TTN-V3) ==
415
416
417 You can access the gateway's built-in LNS server of (% style="color:blue" %)**The Things Network - Stack **(%%)via the URL( (% style="background-color:yellow" %)__**//http:~/~/<hostname>:8080 or http:~/~/<local-IPV4-address> //**__(%%)) in your browser.
418
419 Such as  (% style="background-color:yellow" %)__**//http:~/~/dragino-54ff12:8080  or http:~/~/<Local-IPV4-Address>//**__
420
421
422 Login account:
423
424 **User ID: ** ** (% style="background-color:yellow" %)admin(%%)**
425
426 **Password: ** ** (% style="background-color:yellow" %)dragino(%%)**
427
428
429 [[image:image-20220725171719-1.png||height="570" width="769"]]
430
431
432 == 4.2 Application Server ~-~- Node-Red ==
433
434
435 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.
436
437
438 Such as (% style="background-color:yellow" %)__**//http:~/~/dragino-54ff12:1880  or http:~/~/<Local-IPV4-Address>//**__
439
440
441 [[image:image-20220725172124-3.png||height="610" width="843"]]
442
443
444
445 === **Using Node-Red, InfluxDB and Grafana** ===
446
447 The LPS8-V2 supports this combination, the default, Node-red is pre-installed but the InfluxDB and Grafana is not pre-installed.
448
449
450 the users can refer to this link to install them.
451
452 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Armbian%20OS%20instruction/#H2.6HowtoinstallGrafanaandinfluxdb>>http://wiki.dragino.com/xwiki/bin/view/Main/Armbian%20OS%20instruction/#H2.6HowtoinstallGrafanaandinfluxdb]]
453
454
455 = 5. How users can access LPS8v2 using serial USB =
456
457
458 (% style="color:blue" %)**USB TTL to LPS8v2  Connection:**
459
460
461 Port 1 of the UART on the LPS8v2 is GND
462
463 (% class="box infomessage" %)
464 (((
465 **TXD  <~-~--> UART RXD (Gray line)**
466
467 **RXD  <~-~--> UART TXD (White line)**
468
469 **GND <~-~--> GND (Black line)**
470 )))
471
472
473 **LPS8v2 UART connection photo**
474
475 [[image:image-20220804163015-1.png||height="621" width="466"]]
476
477
478 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:
479
480
481 [[image:image-20220804164928-3.png||height="320" width="332"]]
482
483
484 [[image:image-20220804164747-2.png||height="622" width="594"]]
485
486
487 = 6. Use the helium gateway-rs as the Data-only Hotspot =
488
489
490 == **Step 1: Configure Frequency Band** ==
491
492
493 //Each country has a requirement for frequency region. Choose the right one for your area.//
494
495 [[image:image-20220905164308-1.png]]
496
497
498
499 == **Step 2: Configure the forward address** ==
500
501
502 **Select one of the servers to configure.**
503
504 **For example:**
505
506 [[image:image-20220905164847-2.png]]
507
508
509
510 == **Step 3: Download and Install the Helium-gateway-rs** ==
511
512
513 **Access the gateway CLI via SSH.**
514
515 [[image:image-20220905165222-3.png]]
516
517
518 **Download gateway-rs.**
519
520 [[image:image-20220905165715-5.png]]
521
522 (% class="box infomessage" %)
523 (((
524 **Command: wget [[http:~~/~~/repo.dragino.com/release/tool/gateway-rs/helium-gateway-v1.0.0-alpha.31-raspi234.deb>>http://repo.dragino.com/release/tool/gateway-rs/helium-gateway-v1.0.0-alpha.31-raspi234.deb]]**
525 )))
526
527
528 **Install gateway-rs.**
529
530 [[image:image-20220905165917-7.png]]
531
532 (% class="box infomessage" %)
533 (((
534 **Command: dpkg -i helium-gateway-v1.0.0-alpha.31-raspi234.deb **
535 )))
536
537
538 **Modify configuration.**
539
540
541 [[image:image-20220905173847-12.png]]
542
543
544 (% class="box infomessage" %)
545 (((
546 **region=<Enter regional parameters> \
547 && sed -i '/region/d' /etc/helium_gateway/settings.toml && sed -i "1 i\region = \"$region\"" /etc/helium_gateway/settings.toml \
548 && sed -i '/region/d' /etc/helium_gateway/default.toml && sed -i "22 i\region = \"$region\"" /etc/helium_gateway/default.toml**
549 )))
550
551
552 **Restart the helium_gateway**
553
554 [[image:image-20220905170920-9.png]]
555
556
557 (% class="box infomessage" %)
558 (((
559 **systemctl restart helium_gateway**
560 )))
561
562
563 **Check the helium_gateway Log：**
564
565 [[image:image-20220905173952-13.png]]
566
567
568 (% class="box infomessage" %)
569 (((
570 **journalctl -u helium_gateway -f**
571 )))
572
573
574 (% style="color:red" %)**Note: if your device is not finished the onboarding, which is unable to connect to the Helium console.**
575
576 where the helium gateway log is shown:
577
578 [[image:image-20220905174534-14.png]]
579
580
581 So you have to finish the onboarding, ~-~--Please refer to [[Step 2.7>>doc:Main.Notes for Helium.WebHome||anchor="H2.7A0Step6:OnboardingData-OnlyHotspot"]] to onboarding your LPS8-V2.
582
583
584 = 7. OTA System Update =
585
586
587 LPS8v2 supports system auto update via OTA, please see **[[this URL>>url:http://wiki.dragino.com/xwiki/bin/view/OTA%20Update/]]** for the detail of this feature.
588
589
590 = 8. Trouble Shooting =
591
592 == 8.1  I can't log in to the built-in Server TTN Stack which shows '**Login failed**'. ==
593
594
595 [[image:image-20220920135918-1.png]]
596
597
598 This is caused by the inconsistency between the built-in TTN-Stack domain configuration and your login URL.
599
600 By default, ttn-stack uses the gateway's domain name for URL resolution, but in some networks, they prefer to resolve IP-v4 addresses.
601
602
603 So you can change the domain name of the TTN-Stack configuration to the IPv4 address.
604
605 **Click the update URL button to configure the URL with the current eth port address.**
606
607 [[image:image-20220920141936-2.png]]
608
609
610 = (% style="color:inherit; font-family:inherit; font-size:29px" %)9. Supports(%%) =
611
612
613 (((
614 **//If you are experiencing issues and can't solve them, you can send mail to [[support@dragino.com>>mailto:support@dragino.com]].//**
615 )))
616
617 (((
618 **//With your question as detailed as possible. We will reply and help you in the shortest.//**
619
620
621 = 10. Reference =
622
623
624 * Install Tago Core: Refer **Install Tago Core in LPS8v2** in[[ Instruction>>doc:Main.Tago\.IO.WebHome]].
625 * [[Advance OS Reference Guide for LPS8v2>>doc:Main.Armbian OS instruction.WebHome]].
626
627
628 )))
629
630 = 11. Order Info =
631
632
633 (% style="color:#0000ff" %)**LPS8v2-XXX-YYY**
634
635 (% style="color:#0000ff" %)**XXX**(% style="color:black" %): Frequency Band
636
637 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
638 * (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
639 * (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
640 * (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
641 * (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
642 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
643
644 (% style="color:#0000ff" %)**YYY**(% style="color:black" %): 4G Cellular Option
645
646 * (% style="color:red" %)**E**(%%):  EMEA, Korea, Thailand, India.
647 * (% style="color:red" %)**A**(%%):  North America/ Rogers/AT&T/T-Mobile.
648 * (% style="color:red" %)**AU**(%%): Latin America, New Zeland, Taiwan
649 * (% style="color:red" %)**J**(%%):  Japan, DOCOMO/SoftBank/ KDDI
650
651 More info about valid bands, please see [[EC25-E product page>>url:https://www.quectel.com/product/ec25.htm]].
652
653
654 = 12. Manufacturer Info =
655
656
657 **Shenzhen Dragino Technology Development co. LTD**
658
659 Room 202, Block B, BCT Incubation Bases (BaoChengTai),  No.8 CaiYunRoad
660
661 LongCheng Street, LongGang District ; Shenzhen 518116,China
662
663
664 = 13. FCC Warning =
665
666
667 (((
668 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:
669 )))
670
671 (((
672 ~-~- Reorient or relocate the receiving antenna.
673 )))
674
675 (((
676 ~-~- Increase the separation between the equipment and receiver.
677 )))
678
679 (((
680 ~-~- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
681 )))
682
683 (((
684 ~-~- Consult the dealer or an experienced radio/TV technician for help.
685 )))
686
687
688 (((
689 Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
690 )))
691
692
693 (((
694 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.
695
696
697 )))
698 )))

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