Wiki source code of LA66 USB LoRaWAN Adapter User Manual

Version 161.3 by Xiaoling on 2023/09/19 18:00

version	line-number	content
134.2	1
87.2	2
87.13	3	Table of Contents:
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1.1	5	{{toc/}}
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	7
6.1	8
87.2	9
	10
146.5	11	= 1. LA66 USB LoRaWAN Adapter =
87.2	12
146.5	13	== 1.1 Overview ==
88.2	14
100.2	15
93.1	16	[[image:image-20220715001142-3.png\|\|height="145" width="220"]]
	17
100.3	18
100.5	19	(((
91.1	20	(% style="color:blue" %)LA66 USB LoRaWAN Adapter(%%) is designed to fast turn USB devices to support LoRaWAN wireless features. It combines a CP2101 USB TTL Chip and LA66 LoRaWAN module which can easy to add LoRaWAN wireless feature to PC / Mobile phone or an embedded device that has USB Interface.
100.5	21	)))
52.1	22
100.5	23	(((
101.4	24	(% style="color:blue" %)LA66(%%) is a ready-to-use module that includes the (% style="color:blue" %)LoRaWAN v1.0.3 protocol(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
100.5	25	)))
73.1	26
100.5	27	(((
90.1	28	Each LA66 module includes a (% style="color:blue" %)world-unique OTAA key(%%) for LoRaWAN registration.
100.5	29	)))
90.1	30
100.5	31	(((
90.1	32	Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)open-source peer-to-peer LoRa Protocol(%%) for the none-LoRaWAN application.
100.5	33	)))
90.1	34
100.5	35	(((
90.1	36	LA66 is equipped with (% style="color:blue" %)TCXO crystal(%%) which ensures the module can achieve stable performance in extreme temperatures.
100.5	37	)))
90.1	38
	39
146.5	40	== 1.2 Features ==
73.1	41
137.6	42
73.1	43	* LoRaWAN USB adapter base on LA66 LoRaWAN module
	44	* Ultra-long RF range
161.3	45	* Support LoRaWAN v1.0.3 protocol
73.1	46	* Support peer-to-peer protocol
	47	* TCXO crystal to ensure RF performance on low temperature
	48	* Spring RF antenna
	49	* Available in different frequency LoRaWAN frequency bands.
	50	* World-wide unique OTAA keys.
	51	* AT Command via UART-TTL interface
	52	* Firmware upgradable via UART interface
93.3	53	* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
73.1	54
146.5	55	== 1.3 Specification ==
	56
	57
73.1	58	* CPU: 32-bit 48 MHz
	59	* Flash: 256KB
	60	* RAM: 64KB
	61	* Input Power Range: 5v
	62	* Frequency Range: 150 MHz ~~ 960 MHz
	63	* Maximum Power +22 dBm constant RF output
	64	* High sensitivity: -148 dBm
	65	* Temperature:
	66	** Storage: -55 ~~ +125℃
	67	** Operating: -40 ~~ +85℃
	68	* Humidity:
	69	** Storage: 5 ~~ 95% (Non-Condensing)
	70	** Operating: 10 ~~ 95% (Non-Condensing)
	71	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	72	* LoRa Rx current: <9 mA
	73
161.2	74
146.5	75	== 1.4 Pin Mapping & LED ==
	76
149.7	77
143.1	78	[[image:image-20220813183239-3.png\|\|height="526" width="662"]]
7.1	79
87.3	80
146.5	81	== 1.5 Example: Send & Get Messages via LoRaWAN in PC ==
87.3	82
146.5	83
100.5	84	(((
78.2	85	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
161.2	86
	87
100.5	88	)))
58.1	89
157.2	90	(% style="color:blue" %)1. Connect the LA66 USB LoRaWAN adapter to PC
87.3	91
106.1	92	[[image:image-20220723100027-1.png]]
78.2	93
87.3	94
58.1	95	Open the serial port tool
	96
	97	[[image:image-20220602161617-8.png]]
	98
157.2	99
78.2	100	[[image:image-20220602161718-9.png\|\|height="457" width="800"]]
58.1	101
	102
157.2	103	(% style="color:blue" %)2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.
87.3	104
78.2	105	The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
58.1	106
78.2	107	[[image:image-20220602161935-10.png\|\|height="498" width="800"]]
58.1	108
78.2	109
157.2	110	(% style="color:blue" %)3. See Uplink Command
78.2	111
87.3	112	Command format: (% style="color:#4472c4" %) AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
	113
58.1	114	example: AT+SENDB=01,02,8,05820802581ea0a5
	115
78.2	116	[[image:image-20220602162157-11.png\|\|height="497" width="800"]]
58.1	117
	118
157.2	119	(% style="color:blue" %)4. Check to see if TTN received the message
87.3	120
149.2	121	[[image:image-20220817093644-1.png]]
78.2	122
149.2	123
154.1	124	== 1.6 Example: How to join helium ==
	125
	126
157.2	127	(% style="color:blue" %)1. Create a new device.
	128
154.1	129	[[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"]]
	130
	131
157.2	132	(% style="color:blue" %)2. Save the device after filling in the necessary information.
	133
154.1	134	[[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"]]
	135
	136
	137	(% style="color:blue" %)3. Use AT commands.
	138
	139	[[image:image-20220909151441-1.jpeg\|\|height="695" width="521"]]
	140
	141
157.2	142	(% style="color:blue" %)4. Use the serial port tool
	143
154.1	144	[[image:image-20220909151517-2.png\|\|height="543" width="708"]]
	145
	146
157.2	147	(% style="color:blue" %)5. Use command AT+CFG to get device configuration
	148
154.1	149	[[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"]]
	150
	151
	152	(% style="color:blue" %)6. Network successfully.
	153
	154	[[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"]]
	155
	156
	157	(% style="color:blue" %)7. Send uplink using command
	158
157.2	159	[[image:image-20220912085244-1.png]]
	160
	161	[[image:image-20220912085307-2.png]]
	162
	163
154.1	164	[[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"]]
	165
	166
155.1	167	== 1.7 Example: Send PC's CPU/RAM usage to TTN via python ==
81.1	168
87.3	169
87.1	170	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]]
81.1	171
106.1	172	(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]])
81.1	173
149.6	174
87.3	175	(% style="color:red" %)Preconditions:
81.1	176
87.3	177	(% style="color:red" %)1. LA66 USB LoRaWAN Adapter works fine
81.1	178
87.3	179	(% style="color:red" %)2. LA66 USB LoRaWAN Adapter is registered with TTN
81.1	180
	181
	182
87.3	183	(% style="color:blue" %)Steps for usage:
	184
	185	(% style="color:blue" %)1.(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
	186
158.1	187	(% style="color:blue" %)2.(%%) Add [[decoder>>https://github.com/dragino/dragino-end-node-decoder/tree/main/LA66%20USB]] on TTN
87.3	188
158.1	189	(% style="color:blue" %)3.(%%) Run the python script in PC and see the TTN
149.6	190
158.1	191
81.1	192	[[image:image-20220602115852-3.png\|\|height="450" width="1187"]]
	193
	194
155.1	195	== 1.8 Example: Send & Get Messages via LoRaWAN in RPi ==
11.1	196
87.4	197
79.1	198	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
12.1	199
79.1	200
157.2	201	(% style="color:blue" %)1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi
87.4	202
106.1	203	[[image:image-20220723100439-2.png]]
43.1	204
52.1	205
157.2	206	(% style="color:blue" %)2. Install Minicom in RPi.
87.4	207
79.1	208	(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
52.1	209
87.4	210	(% style="background-color:yellow" %)apt update
52.1	211
87.4	212	(% style="background-color:yellow" %)apt install minicom
52.1	213
79.1	214	Use minicom to connect to the RPI's terminal
52.1	215
79.1	216	[[image:image-20220602153146-3.png\|\|height="439" width="500"]]
52.1	217
	218
157.2	219	(% style="color:blue" %)3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.
8.1	220
87.11	221	The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
	222
79.1	223	[[image:image-20220602154928-5.png\|\|height="436" width="500"]]
46.1	224
	225
157.2	226	(% style="color:blue" %)4. Send Uplink message
46.1	227
87.5	228	Format: (% style="color:#4472c4" %)AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
87.4	229
79.1	230	example: AT+SENDB=01,02,8,05820802581ea0a5
46.1	231
79.1	232	[[image:image-20220602160339-6.png\|\|height="517" width="600"]]
	233
87.4	234
	235
79.1	236	Check to see if TTN received the message
	237
157.2	238
79.1	239	[[image:image-20220602160627-7.png\|\|height="369" width="800"]]
	240
	241
155.1	242	== 1.9 Example: Use of LA66 USB LoRaWAN Adapter and mobile APP ==
11.1	243
155.1	244	=== 1.9.1 Hardware and Software Connection ===
13.1	245
134.2	246
146.5	247
134.2	248	==== (% style="color:blue" %)Overview：(%%) ====
	249
	250
134.9	251	(((
139.2	252	DRAGINO-LA66-APP is an Open Source mobile APP for LA66 USB LoRaWAN Adapter. DRAGINO-LA66-APP has below features:
106.1	253
139.2	254	* Send real-time location information of mobile phone to LoRaWAN network.
	255	* Check LoRaWAN network signal strengh.
	256	* Manually send messages to LoRaWAN network.
134.9	257	)))
111.1	258
106.1	259
134.2	260
146.5	261
139.2	262	==== (% style="color:blue" %)Hardware Connection:(%%) ====
134.2	263
149.6	264
139.2	265	A USB to Type-C adapter is needed to connect to a Mobile phone.
134.2	266
139.2	267	Note: The package of LA66 USB adapter already includes this USB Type-C adapter.
106.1	268
139.2	269	[[image:image-20220813174353-2.png\|\|height="360" width="313"]]
106.1	270
	271
146.5	272
139.2	273	==== (% style="color:blue" %)Download and Install App:(%%) ====
134.2	274
149.6	275
139.2	276	[[(% 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)
	277
157.2	278
139.2	279	[[image:image-20220813173738-1.png]]
	280
	281
146.5	282
134.2	283	==== (% style="color:blue" %)Use of APP:(%%) ====
	284
149.6	285
110.1	286	Function and page introduction
	287
149.6	288
139.2	289	[[image:image-20220723113448-7.png\|\|height="995" width="450"]]
110.1	290
157.2	291
161.2	292	(% style="color:blue" %)Block Explain:
134.9	293
139.2	294	1. Display LA66 USB LoRaWAN Module connection status
110.1	295
139.2	296	2. Check and reconnect
110.1	297
139.2	298	3. Turn send timestamps on or off
110.1	299
139.2	300	4. Display LoRaWan connection status
110.1	301
139.2	302	5. Check LoRaWan connection status
110.1	303
139.2	304	6. The RSSI value of the node when the ACK is received
110.1	305
139.2	306	7. Node's Signal Strength Icon
110.1	307
139.2	308	8. Configure Location Uplink Interval
110.1	309
139.2	310	9. AT command input box
110.1	311
139.2	312	10. Send Button: Send input box info to LA66 USB Adapter
110.1	313
139.2	314	11. Output Log from LA66 USB adapter
110.1	315
139.2	316	12. clear log button
110.1	317
139.2	318	13. exit button
110.1	319
134.2	320
149.6	321
106.1	322	LA66 USB LoRaWAN Module not connected
	323
149.6	324
139.2	325	[[image:image-20220723110520-5.png\|\|height="677" width="508"]]
106.1	326
134.2	327
	328
110.1	329	Connect LA66 USB LoRaWAN Module
106.1	330
157.2	331
139.2	332	[[image:image-20220723110626-6.png\|\|height="681" width="511"]]
110.1	333
134.2	334
155.1	335	=== 1.9.2 Send data to TTNv3 and plot location info in Node-Red ===
111.1	336
	337
134.8	338	(% style="color:blue" %)1. Register LA66 USB LoRaWAN Module to TTNV3
134.2	339
149.6	340
113.1	341	[[image:image-20220723134549-8.png]]
	342
	343
134.2	344
134.8	345	(% style="color:blue" %)2. Open Node-RED,And import the JSON file to generate the flow
134.2	346
149.6	347
139.2	348	Sample JSON file please go to [[this link>>https://www.dropbox.com/sh/zxwx16qb777uvkz/AABE_P8coGCQ4DAC8enH4bUya?dl=0]] to download.
117.1	349
139.2	350	For the usage of Node-RED, please refer to: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Node-RED/>>http://wiki.dragino.com/xwiki/bin/view/Main/Node-RED/]]
113.1	351
139.2	352	After see LoRaWAN Online, walk around and the APP will keep sending location info to LoRaWAN server and then to the Node Red.
117.1	353
151.1	354	LA66~-~-node-red~-~-decoder:[[dragino-end-node-decoder/Node-RED at main · dragino/dragino-end-node-decoder · GitHub>>url:https://github.com/dragino/dragino-end-node-decoder/tree/main/Node-RED]]
139.2	355
151.1	356
139.2	357	Example output in NodeRed is as below:
	358
117.1	359	[[image:image-20220723144339-1.png]]
	360
134.2	361
155.1	362	== 1.10 Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
73.1	363
134.2	364
157.2	365	The LA66 USB LoRaWAN Adapter is the same as the LA66 LoRaWAN Shield update method.
73.1	366
157.2	367	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).
73.1	368
159.2	369	(% style="color:red" %)Notice: If upgrade via USB hub is not sucessful. try to connect to PC directly.
149.4	370
119.1	371	[[image:image-20220723150132-2.png]]
73.1	372
119.1	373
161.2	374
	375	=== (% style="color:blue" %)Open the Upgrade tool (Tremo Programmer) in PC and Upgrade (%%) ===
	376
	377
160.1	378	1. Software download link: [[https:~~/~~/www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0>>url:https://www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0]]
	379
	380	[[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"]]
	381
	382	[[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"]]
	383
161.2	384
160.1	385	2. Select the COM port corresponding to USB TTL
	386
	387	[[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"]]
	388
161.2	389
160.1	390	3. Select the bin file to burn
	391
	392	[[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"]]
	393
	394	[[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"]]
	395
	396	[[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"]]
	397
161.2	398
160.1	399	4. Click to start the download
	400
	401	[[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"]]
	402
161.2	403
160.1	404	5. Check update process
	405
	406	[[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"]]
	407
161.2	408
160.1	409	The following picture shows that the burning is successful
	410
	411	[[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"]]
	412
161.2	413
146.5	414	= 2. FAQ =
73.1	415
157.4	416	== 2.1 How to Compile Source Code for LA66? ==
137.2	417
	418
146.4	419	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]]
137.2	420
	421
157.3	422	== 2.2 Where to find Peer-to-Peer firmware of LA66? ==
	423
	424
	425	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]]
	426
	427
161.1	428	== 2.3 My device keeps showing invalid credentials, the device goes into low power mode ==
	429
	430
161.2	431	Set the AT+COMMAND: (% style="color:blue" %)AT+UUID=666666666666
161.1	432
	433
146.5	434	= 3. Order Info =
137.2	435
	436
146.5	437	Part Number: (% style="color:blue" %)LA66-USB-LoRaWAN-Adapter-XXX
87.4	438
	439
87.5	440	(% style="color:blue" %)XXX(%%): The default frequency band
86.1	441
87.5	442	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	443	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	444	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	445	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	446	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	447	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	448	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	449	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	450	* (% style="color:red" %)PP(%%): Peer to Peer LoRa Protocol
73.1	451
161.2	452
146.5	453	= 4. Reference =
	454
	455
	456	* Hardware Design File for LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
150.1	457	* Mobile Phone App Source Code: [[Download>>https://github.com/dragino/LA66_Mobile_App]].
149.6	458
161.2	459
157.5	460	= 5. FCC Statement =
	461
	462
	463	(% style="color:red" %)FCC Caution:
	464
	465	Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	466
	467	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.
	468
	469
	470	(% style="color:red" %)IMPORTANT NOTE:
	471
	472	(% 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:
	473
	474	—Reorient or relocate the receiving antenna.
	475
	476	—Increase the separation between the equipment and receiver.
	477
	478	—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	479
	480	—Consult the dealer or an experienced radio/TV technician for help.
	481
	482
	483	(% style="color:red" %)FCC Radiation Exposure Statement:
	484
	485	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.
158.2	486
	487

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