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...	...	@@ -244,44 +244,36 @@
244	244	**For End Node**
245	245	)))
246	246
247		-we can use AT Command (AT+CFG) to check the RX1 configure and RX2 configure. as below:
248		-
249		-(% class="box infomessage" %)
250	250	(((
251		- AT+RX2FQ=869525000 ~-~--> The RX2 Window frequency
	248	+we can use AT Command (AT+CFG) to check the RX1 configure and RX2 configure. as below:
252	252	)))
253	253
254		-(% class="box infomessage" %)
255	255	(((
256		- AT+RX2DR=3 ~-~--> The RX2 DataRate
	252	+
257	257	)))
258	258
259		-(% class="box infomessage" %)
260	260	(((
261		- AT+RX1DL=1000 ~-~--> Receive Delay 1
262		-)))
263		-
264	264	(% class="box infomessage" %)
265	265	(((
266		- AT+RX2DL=2000 ~-~--> Receive Delay 2
	258	+AT+RX2FQ=869525000     ~-~--> The RX2 Window frequency
	259	+AT+RX2DR=3      ~-~--> The RX2 DataRate
	260	+AT+RX1DL=1000   ~-~--> Receive Delay 1
	261	+AT+RX2DL=2000   ~-~--> Receive Delay 2
267	267	)))
	263	+)))
268	268
269	269	(((
270	270	**when the device running, we can see below info:**
271	271	)))
272	272
273		-(((
274		-
275		-)))
	269	+{{{ [12502]***** UpLinkCounter= 0 *****
	270	+ [12503]TX on freq 868500000 Hz at DR 0
	271	+ [13992]txDone
	272	+ [15022]RX on freq 868500000 Hz at DR 0 --> RX1 window open at frequency: 868500000, DR0, after 15022-13992= 1030ms of txdone
	273	+ [15222]rxTimeOut --> no packet arrive in RX1 window. (duration: 200ms)
	274	+ [15987]RX on freq 869525000 Hz at DR 3 --> RX2 window open at frequency: 869525000, DR3, after 15987-13992= 1995ms of txdone
	275	+ [16027]rxTimeOut --> no packet arrive in RX2 window. (duration: 40 ms)}}}
276	276
277		-{{{ [12502]***** UpLinkCounter= 0 *****
278		- [12503]TX on freq 868500000 Hz at DR 0
279		- [13992]txDone
280		- [15022]RX on freq 868500000 Hz at DR 0 --> RX1 window open at frequency: 868500000, DR0, after 15022-13992= 1030ms of txdone
281		- [15222]rxTimeOut --> no packet arrive in RX1 window. (duration: 200ms)
282		- [15987]RX on freq 869525000 Hz at DR 3 --> RX2 window open at frequency: 869525000, DR3, after 15987-13992= 1995ms of txdone
283		- [16027]rxTimeOut --> no packet arrive in RX2 window. (duration: 40 ms)}}}
284		-
285	285	(((
286	286
287	287	)))
...	...	@@ -290,16 +290,16 @@
290	290	**Another message:**
291	291	)))
292	292
293		-{{{ [12502]***** UpLinkCounter= 0 *****
294		- [12503]TX on freq 868100000 Hz at DR 0
295		- [13992]txDone
296		- [15022]RX on freq 868100000 Hz at DR 0
297		- [15222]rxTimeOut
298		- [15987]RX on freq 869525000 Hz at DR 3
299		- [16185]rxDone --> We have got the downstream packet.
300		- Rssi= -64
301		- Receive data
302		- 1:0012345678}}}
	285	+{{{ [12502]***** UpLinkCounter= 0 *****
	286	+ [12503]TX on freq 868100000 Hz at DR 0
	287	+ [13992]txDone
	288	+ [15022]RX on freq 868100000 Hz at DR 0
	289	+ [15222]rxTimeOut
	290	+ [15987]RX on freq 869525000 Hz at DR 3
	291	+ [16185]rxDone --> We have got the downstream packet.
	292	+ Rssi= -64
	293	+ Receive data
	294	+ 1:0012345678}}}
303	303
304	304	== 5.3 If problem doesn’t solve ==
305	305
...	...	@@ -376,13 +376,13 @@
376	376
377	377	AT+APPSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 11 (End Node App Session Key)
378	378
379		-(((
380	380	[[https:~~/~~/lorawan-packet-decoder-0ta6puiniaut.runkit.sh/?data=40c1190126800100024926272bf18bbb6341584e27e23245&nwkskey=00000000000000000000000000000111&appskey=00000000000000000000000000000111>>url:https://lorawan-packet-decoder-0ta6puiniaut.runkit.sh/?data=40c1190126800100024926272bf18bbb6341584e27e23245&nwkskey=00000000000000000000000000000111&appskey=00000000000000000000000000000111]]
381		-)))
382	382
383	383	[[image:https://wiki.dragino.com/images/7/77/Decrypt_a_LoRaWAN_Packet4.png||alt="Decrypt a LoRaWAN Packet4.png" height="390" width="558"]]
384	384
385		-The FRMPayload is the device payload.
	375	+(((
	376	+ The FRMPayload is the device payload.
	377	+)))
386	386
387	387
388	388	= 8. Why i see uplink 0x00 periodcally on the LHT65 v1.8 firmware =
...	...	@@ -417,24 +417,22 @@
417	417
418	418	= 10. Why i got the payload only with "0x00" or "AA~=~="? =
419	419
420		-* (((
421		-If you are using US915, AU915 and AS923 frequencies.This is normal phenomenon.
422		-)))
	412	+* If you are using US915, AU915 and AS923 frequencies.This is normal phenomenon.
423	423
424	424	(((
425		-When using the frequency mentioned above, the server sometimes adjusts the rate of the node, because the node defaults to the adaptive rate.
	415	+ When using the frequency mentioned above, the server sometimes adjusts the rate of the node, because the node defaults to the adaptive rate.
426	426	)))
427	427
428	428	(((
429		-When the server adjusts your node rate to 0, the maximum payload length is 11 bytes. The server sometimes sends an ADR packet to the node,
	419	+ When the server adjusts your node rate to 0, the maximum payload length is 11 bytes. The server sometimes sends an ADR packet to the node,
430	430	)))
431	431
432	432	(((
433		-and the node will reply to the server after receiving the ADR packet, but the number of payload bytes exceeds the limit,
	423	+ and the node will reply to the server after receiving the ADR packet, but the number of payload bytes exceeds the limit,
434	434	)))
435	435
436	436	(((
437		-so it will send a normal uplink packet, and an additional 00 data packet.
	427	+ so it will send a normal uplink packet, and an additional 00 data packet.
438	438	)))
439	439
440	440	* (((