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1		-**~ Contents:**
	1	+**~ Table of Contents:**
2	2
3	3	{{toc/}}
4	4
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182	182	Depends on Class A or Class C, the receive windows will be a little difference,
183	183	)))
184	184
185		-[[image:image-20220526164547-11.png]]
	185	+[[image:image-20220531161828-1.png]]
186	186
187	187	receive windows for Class A and Class C
188	188
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194	194	* This packet must match the frequency of the RX1 or RX2 window.
195	195	* This packet must match the DataRate of RX1(RX1DR) or RX2 (RX2DR). **This is the common fail point, because different lorawan server might use different RX2DR and they don't info End Node via ADR message so cause the mismatch. If this happen, user need to change the RX2DR to the right value in end node. In OTAA, LoRaWAN Server will send the RX2DR setting in Join Accept message so the end node will auto adjust. but ABP uplink doesn't support this auto change.**
196	196
197		-
198		-
199	199	== 5.2 See Debug Info ==
200	200
201	201	(((
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338	338	(% class="box infomessage" %)
339	339	(((
340	340	**Change to ABP Mode: AT+NJM=0**
341		-)))
342		-
343		-(% class="box infomessage" %)
344		-(((
345	345	**Change to fix frequency: AT+CHS=904900000**
346		-)))
347		-
348		-(% class="box infomessage" %)
349		-(((
350	350	**Change to fix DR: AT+DR=0**
351	351	)))
352	352
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435	435	* (((
436	436	Some node decoders may not have filtering function, or you need decoders of other servers and formats. Please send an email to [[david.huang@dragino.cc>>mailto:david.huang@dragino.cc]]
437	437
438		-
439	439
440	440	)))
441	441
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495	495
496	496	(((
497	497	(Any combination of 16 bit codes can be used）
	487	+
	488	+
	489	+= 12. I set my device is LoRaWAN Class C mode, why i still see Class A after boot? =
498	498	)))
499	499
500	500
	493	+Class C only refers to status after OTAA Join successfully. The OTAA Join Process will use Class A mode.
	494	+
	495	+
	496	+
501	501	(% class="wikigeneratedid" %)
502	502

image-20220531161828-1.png

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	1	+XWiki.Xiaoling

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	1	+98.6 KB

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