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Last modified by Xiaoling on 2025/02/07 16:37
From version 175.1
edited by Mengting Qiu
on 2024/04/01 17:13
Change comment: Uploaded new attachment "image-20240401171313-1.jpeg", version {1}
To version 153.1
edited by Bei Jinggeng
on 2022/09/09 15:15
Change comment: Uploaded new attachment "image-20220909151517-2.png", version {1}

Summary

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Author
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1 -XWiki.ting
1 +XWiki.Bei
Content
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10 10  
11 11  = 1.  LA66 USB LoRaWAN Adapter =
12 12  
13 +
13 13  == 1.1  Overview ==
14 14  
15 15  
16 -[[image:image-20220715001142-3.png||height="194" width="294"]][[image:image-20240101111030-2.png]]
17 +[[image:image-20220715001142-3.png||height="145" width="220"]]
17 17  
18 18  
19 19  (((
... ... @@ -37,12 +37,13 @@
37 37  )))
38 38  
39 39  
41 +
40 40  == 1.2  Features ==
41 41  
42 42  
43 43  * LoRaWAN USB adapter base on LA66 LoRaWAN module
44 44  * Ultra-long RF range
45 -* Support LoRaWAN v1.0.3 protocol
47 +* Support LoRaWAN v1.0.4 protocol
46 46  * Support peer-to-peer protocol
47 47  * TCXO crystal to ensure RF performance on low temperature
48 48  * Spring RF antenna
... ... @@ -77,6 +77,7 @@
77 77  [[image:image-20220813183239-3.png||height="526" width="662"]]
78 78  
79 79  
82 +
80 80  == 1.5  Example: Send & Get Messages via LoRaWAN in PC ==
81 81  
82 82  
... ... @@ -84,8 +84,10 @@
84 84  Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
85 85  )))
86 86  
87 -(% style="color:blue" %)**1.  Connect the LA66 USB LoRaWAN adapter to PC**
88 88  
91 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
92 +
93 +
89 89  [[image:image-20220723100027-1.png]]
90 90  
91 91  
... ... @@ -93,19 +93,23 @@
93 93  
94 94  [[image:image-20220602161617-8.png]]
95 95  
96 -
97 97  [[image:image-20220602161718-9.png||height="457" width="800"]]
98 98  
99 99  
100 -(% style="color:blue" %)**2.  Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
101 101  
105 +(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
106 +
107 +
102 102  The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
103 103  
110 +
104 104  [[image:image-20220602161935-10.png||height="498" width="800"]]
105 105  
106 106  
107 -(% style="color:blue" %)**3.  See Uplink Command**
108 108  
115 +(% style="color:blue" %)**3. See Uplink Command**
116 +
117 +
109 109  Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
110 110  
111 111  example: AT+SENDB=01,02,8,05820802581ea0a5
... ... @@ -113,57 +113,17 @@
113 113  [[image:image-20220602162157-11.png||height="497" width="800"]]
114 114  
115 115  
116 -(% style="color:blue" %)**4.  Check to see if TTN received the message**
117 117  
118 -[[image:image-20220817093644-1.png]]
126 +(% style="color:blue" %)**4. Check to see if TTN received the message**
119 119  
120 120  
121 -== 1.6  Example: How to join helium ==
129 +[[image:image-20220817093644-1.png]]
122 122  
123 123  
124 -(% style="color:blue" %)**1.  Create a new device.**
125 125  
126 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220907165500-1.png?width=940&height=464&rev=1.1||alt="image-20220907165500-1.png"]]
133 +== 1.6  Example: Send PC's CPU/RAM usage to TTN via python ==
127 127  
128 128  
129 -(% style="color:blue" %)**2.  Save the device after filling in the necessary information.**
130 -
131 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220907165837-2.png?width=809&height=375&rev=1.1||alt="image-20220907165837-2.png" height="375" width="809"]]
132 -
133 -
134 -(% style="color:blue" %)**3.  Use AT commands.**
135 -
136 -[[image:image-20220909151441-1.jpeg||height="695" width="521"]]
137 -
138 -
139 -(% style="color:blue" %)**4.  Use the serial port tool**
140 -
141 -[[image:image-20220909151517-2.png||height="543" width="708"]]
142 -
143 -
144 -(% style="color:blue" %)**5.  Use command AT+CFG to get device configuration**
145 -
146 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220907170308-3.png?width=617&height=556&rev=1.1||alt="image-20220907170308-3.png" height="556" width="617"]]
147 -
148 -
149 -(% style="color:blue" %)**6.  Network successfully.**
150 -
151 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220907170436-4.png?rev=1.1||alt="image-20220907170436-4.png"]]
152 -
153 -
154 -(% style="color:blue" %)**7.  Send uplink using command**
155 -
156 -[[image:image-20220912085244-1.png]]
157 -
158 -[[image:image-20220912085307-2.png]]
159 -
160 -
161 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220907170744-6.png?width=798&height=242&rev=1.1||alt="image-20220907170744-6.png" height="242" width="798"]]
162 -
163 -
164 -== 1.7  Example: Send PC's CPU/RAM usage to TTN via python ==
165 -
166 -
167 167  **Use python as an example：**[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_WindosPC.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_WindosPC.py]]
168 168  
169 169  (**Raspberry Pi example: **[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py]])
... ... @@ -176,30 +176,34 @@
176 176  (% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
177 177  
178 178  
148 +
179 179  (% style="color:blue" %)**Steps for usage:**
180 180  
181 181  (% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
182 182  
183 -(% style="color:blue" %)**2.**(%%) Add [[decoder>>https://github.com/dragino/dragino-end-node-decoder/tree/main/LA66%20USB]] on TTN
153 +(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
184 184  
185 -(% style="color:blue" %)**3.**(%%) Run the python script in PC and see the TTN
186 186  
187 -
188 188  [[image:image-20220602115852-3.png||height="450" width="1187"]]
189 189  
190 190  
191 -== 1.8  Example: Send & Get Messages via LoRaWAN in RPi ==
192 192  
160 +== 1.7  Example: Send & Get Messages via LoRaWAN in RPi ==
193 193  
162 +
194 194  Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
195 195  
196 -(% style="color:blue" %)**1.  Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
197 197  
166 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
167 +
168 +
198 198  [[image:image-20220723100439-2.png]]
199 199  
200 200  
201 -(% style="color:blue" %)**2.  Install Minicom in RPi.**
202 202  
173 +(% style="color:blue" %)**2. Install Minicom in RPi.**
174 +
175 +
203 203  (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
204 204  
205 205   (% style="background-color:yellow" %)**apt update**
... ... @@ -206,41 +206,51 @@
206 206  
207 207   (% style="background-color:yellow" %)**apt install minicom**
208 208  
182 +
209 209  Use minicom to connect to the RPI's terminal
210 210  
211 211  [[image:image-20220602153146-3.png||height="439" width="500"]]
212 212  
213 213  
214 -(% style="color:blue" %)**3.  Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
215 215  
189 +(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
190 +
191 +
216 216  The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
217 217  
194 +
218 218  [[image:image-20220602154928-5.png||height="436" width="500"]]
219 219  
220 220  
221 -(% style="color:blue" %)**4.  Send Uplink message**
222 222  
199 +(% style="color:blue" %)**4. Send Uplink message**
200 +
201 +
223 223  Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
224 224  
225 225  example: AT+SENDB=01,02,8,05820802581ea0a5
226 226  
206 +
227 227  [[image:image-20220602160339-6.png||height="517" width="600"]]
228 228  
229 229  
210 +
230 230  Check to see if TTN received the message
231 231  
232 -
233 233  [[image:image-20220602160627-7.png||height="369" width="800"]]
234 234  
235 235  
236 -== 1.9  Example: Use of LA66 USB LoRaWAN Adapter and mobile APP ==
237 237  
238 -=== 1.9.1  Hardware and Software Connection ===
217 +== 1.8  Example: Use of LA66 USB LoRaWAN Adapter and mobile APP ==
239 239  
240 240  
241 -(% class="wikigeneratedid" id="HOverviewFF1A" %)
242 -(% style="color:blue" %)**Overview：**
220 +=== 1.8.1  Hardware and Software Connection ===
243 243  
222 +
223 +
224 +==== (% style="color:blue" %)**Overview：**(%%) ====
225 +
226 +
244 244  (((
245 245  DRAGINO-LA66-APP is an Open Source mobile APP for LA66 USB LoRaWAN Adapter. DRAGINO-LA66-APP has below features:
246 246  
... ... @@ -251,34 +251,37 @@
251 251  
252 252  
253 253  
254 -(% class="wikigeneratedid" id="HHardwareConnection:" %)
255 -(% style="color:blue" %)**Hardware Connection:**
256 256  
238 +==== (% style="color:blue" %)**Hardware Connection:**(%%) ====
239 +
240 +
257 257  A USB to Type-C adapter is needed to connect to a Mobile phone.
258 258  
259 -(% style="color:red" %)**Note: The package of LA66 USB adapter already includes this USB Type-C adapter.**
243 +Note: The package of LA66 USB adapter already includes this USB Type-C adapter.
260 260  
261 261  [[image:image-20220813174353-2.png||height="360" width="313"]]
262 262  
263 263  
264 -(% class="wikigeneratedid" id="HDownloadandInstallApp:" %)
265 -(% style="color:blue" %)**Download and Install App:**
266 266  
249 +==== (% style="color:blue" %)**Download and Install App:**(%%) ====
250 +
251 +
267 267  [[(% id="cke_bm_895007S" style="display:none" %)** **(%%)**Download Link for Android apk **>>https://www.dropbox.com/sh/zxwx16qb777uvkz/AABE_P8coGCQ4DAC8enH4bUya?dl=0]].  (Android Version Only)
268 268  
269 269  [[image:image-20220813173738-1.png]]
270 270  
271 271  
272 -(% class="wikigeneratedid" id="HUseofAPP:" %)
273 -(% style="color:blue" %)**Use of APP:**
274 274  
275 -Function and page introduction:
258 +==== (% style="color:blue" %)**Use of APP:**(%%) ====
276 276  
277 -[[image:image-20220723113448-7.png||height="911" width="412"]]
278 278  
261 +Function and page introduction
279 279  
280 -(% style="color:blue" %)**Block Explain:**
281 281  
264 +[[image:image-20220723113448-7.png||height="995" width="450"]]
265 +
266 +**Block Explain:**
267 +
282 282  1.  Display LA66 USB LoRaWAN Module connection status
283 283  
284 284  2.  Check and reconnect
... ... @@ -306,24 +306,30 @@
306 306  13.  exit button
307 307  
308 308  
309 -LA66 USB LoRaWAN Module not connected:
310 310  
296 +LA66 USB LoRaWAN Module not connected
297 +
298 +
311 311  [[image:image-20220723110520-5.png||height="677" width="508"]]
312 312  
313 313  
314 -Connect LA66 USB LoRaWAN Module:
315 315  
303 +Connect LA66 USB LoRaWAN Module
304 +
316 316  [[image:image-20220723110626-6.png||height="681" width="511"]]
317 317  
318 318  
319 -=== 1.9.2  Send data to TTNv3 and plot location info in Node-Red ===
320 320  
309 +=== 1.8.2  Send data to TTNv3 and plot location info in Node-Red ===
321 321  
311 +
322 322  (% style="color:blue" %)**1.  Register LA66 USB LoRaWAN Module to TTNV3**
323 323  
314 +
324 324  [[image:image-20220723134549-8.png]]
325 325  
326 326  
318 +
327 327  (% style="color:blue" %)**2.  Open Node-RED,And import the JSON file to generate the flow**
328 328  
329 329  
... ... @@ -341,112 +341,35 @@
341 341  [[image:image-20220723144339-1.png]]
342 342  
343 343  
344 -== 1.10  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
345 345  
346 -=== 1.10.1 LA66V1 Update method ===
337 +== 1.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
347 347  
348 348  
349 -The LA66 USB LoRaWAN Adapter is the same as the LA66 LoRaWAN Shield update method.
340 +The LA66 USB LoRaWAN Adapter is the same as the LA66 LoRaWAN Shield update method
350 350  
351 -Just use the yellow jumper cap to short the BOOT corner and the RX corner, and then press the RESET button (without the jumper cap, you can directly short the BOOT corner and the RX corner with a wire to achieve the same effect).
342 +Just use the yellow jumper cap to short the BOOT corner and the RX corner, and then press the RESET button (without the jumper cap, you can directly short the BOOT corner and the RX corner with a wire to achieve the same effect)
352 352  
353 -**Firmware download:**
354 354  
355 -[[Firmware - Dropbox>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AABJQUWNgt61Z567OcUf-sIya/LA66%20LoRaWAN%20module/Firmware?dl=0&subfolder_nav_tracking=1]]
345 +[[image:image-20220723150132-2.png]]
356 356  
357 -(% style="color:red" %)**Notice: If upgrade via USB hub is not sucessful. try to connect to PC directly.**
358 358  
359 -[[image:image-20220723150132-2.png||height="514" width="506"]]
360 360  
361 -
362 -(% class="wikigeneratedid" id="HOpentheUpgradetool28TremoProgrammer29inPCandUpgrade" %)
363 -(% style="color:blue" %)**Open the Upgrade tool (Tremo Programmer) in PC and Upgrade**
364 -
365 -**1.  Software download link:  [[https:~~/~~/www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0>>url:https://www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0]]**
366 -
367 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602103227-6.png?rev=1.1||alt="image-20220602103227-6.png"]]
368 -
369 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602103357-7.png?rev=1.1||alt="image-20220602103357-7.png" height="486" width="390"]]
370 -
371 -
372 -**2.  Select the COM port corresponding to USB TTL**
373 -
374 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602103844-8.png?rev=1.1||alt="image-20220602103844-8.png" height="291" width="389"]]
375 -
376 -
377 -**3.  Select the bin file to burn**
378 -
379 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602104144-9.png?rev=1.1||alt="image-20220602104144-9.png" height="318" width="405"]]
380 -
381 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602104251-10.png?rev=1.1||alt="image-20220602104251-10.png" height="330" width="579"]]
382 -
383 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602104402-11.png?rev=1.1||alt="image-20220602104402-11.png" height="290" width="372"]]
384 -
385 -
386 -**4.  Click to start the download**
387 -
388 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602104923-13.png?rev=1.1||alt="image-20220602104923-13.png" height="462" width="372"]]
389 -
390 -
391 -**5.  Check update process**
392 -
393 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602104948-14.png?rev=1.1||alt="image-20220602104948-14.png" height="483" width="386"]]
394 -
395 -
396 -**The following picture shows that the burning is successful**
397 -
398 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602105251-15.png?rev=1.1||alt="image-20220602105251-15.png" height="513" width="406"]]
399 -
400 -
401 -=== 1.10.2 LA66V2 Update method ===
402 -
403 -
404 -**Firmware download（Please select withbootloader version）:**
405 -
406 -[[Firmware - Dropbox>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AABJQUWNgt61Z567OcUf-sIya/LA66%20LoRaWAN%20module/Firmware?dl=0&subfolder_nav_tracking=1]]
407 -
408 -
409 -**Firmware update method:**
410 -
411 -Please refer to this link
412 -
413 -[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H3.2.1UpdateafirmwareviaDraginoSensorManagerUtility.exe>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H3.2.1UpdateafirmwareviaDraginoSensorManagerUtility.exe]]
414 -
415 -
416 416  = 2.  FAQ =
417 417  
418 -== 2.1  How to Compile Source Code for LA66? ==
419 419  
352 +== 2.1  How to Compile Source Code for LA66? ==
420 420  
354 +
421 421  Compile and Upload Code to ASR6601 Platform ：[[Instruction>>Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Module.Compile and Upload Code to ASR6601 Platform.WebHome]]
422 422  
423 423  
424 -== 2.2  Where to find Peer-to-Peer firmware of LA66? ==
425 425  
426 -
427 -Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.Instruction for LA66 Peer to Peer firmware.WebHome]]
428 -
429 -
430 -== 2.3 My device keeps showing invalid credentials, the device goes into low power mode ==
431 -
432 -
433 -Set the AT+COMMAND: (% style="color:blue" %)**AT+UUID=666666666666**
434 -
435 -
436 -== 2.4 How to use external antenna via ipex connector? ==
437 -
438 -
439 -You need to remove the spring antenna first, and also remove the resistor and capacitor.
440 -Connect external antenna.
441 -
442 -[[image:image-20231129155939-1.png||height="529" width="397"]]
443 -
444 -
445 445  = 3.  Order Info =
446 446  
447 447  
448 448  **Part Number:**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
449 449  
364 +
450 450  (% style="color:blue" %)**XXX**(%%): The default frequency band
451 451  
452 452  * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
... ... @@ -459,6 +459,7 @@
459 459  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
460 460  * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
461 461  
377 +
462 462  = 4.  Reference =
463 463  
464 464  
... ... @@ -465,31 +465,4 @@
465 465  * Hardware Design File for LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
466 466  * Mobile Phone App Source Code: [[Download>>https://github.com/dragino/LA66_Mobile_App]].
467 467  
468 -= 5.  FCC Statement =
469 -
470 -
471 -(% style="color:red" %)**FCC Caution:**
472 -
473 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
474 -
475 -This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
476 -
477 -
478 -(% style="color:red" %)**IMPORTANT NOTE: **
479 -
480 -(% style="color:red" %)**Note:**(%%) 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:
481 -
482 -—Reorient or relocate the receiving antenna.
483 -
484 -—Increase the separation between the equipment and receiver.
485 -
486 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
487 -
488 -—Consult the dealer or an experienced radio/TV technician for help.
489 -
490 -
491 -(% style="color:red" %)**FCC Radiation Exposure Statement: **
492 -
493 -This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
494 -
495 495  
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