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...	...	@@ -248,18 +248,24 @@
248	248	we can use AT Command (AT+CFG) to check the RX1 configure and RX2 configure. as below:
249	249	)))
250	250
	251	+(% class="box infomessage" %)
251	251	(((
252		-
	253	+AT+RX2FQ=869525000 ~-~--> The RX2 Window frequency
253	253	)))
254	254
	256	+(% class="box infomessage" %)
255	255	(((
	258	+AT+RX2DR=3 ~-~--> The RX2 DataRate
	259	+)))
	260	+
256	256	(% class="box infomessage" %)
257	257	(((
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
	263	+ AT+RX1DL=1000 ~-~--> Receive Delay 1
262	262	)))
	265	+
	266	+(% class="box infomessage" %)
	267	+(((
	268	+ AT+RX2DL=2000 ~-~--> Receive Delay 2
263	263	)))
264	264
265	265	(((
...	...	@@ -266,13 +266,17 @@
266	266	**when the device running, we can see below info:**
267	267	)))
268	268
	275	+(((
	276	+
	277	+)))
	278	+
269	269	{{{ [12502]***** UpLinkCounter= 0 *****
270	270	[12503]TX on freq 868500000 Hz at DR 0
271	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)}}}
	282	+ [15022]RX on freq 868500000 Hz at DR 0 --> RX1 window open at frequency: 868500000, DR0, after 15022-13992= 1030ms of txdone
	283	+ [15222]rxTimeOut --> no packet arrive in RX1 window. (duration: 200ms)
	284	+ [15987]RX on freq 869525000 Hz at DR 3 --> RX2 window open at frequency: 869525000, DR3, after 15987-13992= 1995ms of txdone
	285	+ [16027]rxTimeOut --> no packet arrive in RX2 window. (duration: 40 ms)}}}
276	276
277	277	(((
278	278
...	...	@@ -288,7 +288,7 @@
288	288	[15022]RX on freq 868100000 Hz at DR 0
289	289	[15222]rxTimeOut
290	290	[15987]RX on freq 869525000 Hz at DR 3
291		- [16185]rxDone --> We have got the downstream packet.
	301	+ [16185]rxDone --> We have got the downstream packet.
292	292	Rssi= -64
293	293	Receive data
294	294	1:0012345678}}}
...	...	@@ -368,13 +368,13 @@
368	368
369	369	AT+APPSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 11 (End Node App Session Key)
370	370
	381	+(((
371	371	[[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]]
	383	+)))
372	372
373	373	[[image:https://wiki.dragino.com/images/7/77/Decrypt_a_LoRaWAN_Packet4.png||alt="Decrypt a LoRaWAN Packet4.png" height="390" width="558"]]
374	374
375		-(((
376		- The FRMPayload is the device payload.
377		-)))
	387	+The FRMPayload is the device payload.
378	378
379	379
380	380	= 8. Why i see uplink 0x00 periodcally on the LHT65 v1.8 firmware =
...	...	@@ -409,7 +409,9 @@
409	409
410	410	= 10. Why i got the payload only with "0x00" or "AA~=~="? =
411	411
412		-* If you are using US915, AU915 and AS923 frequencies.This is normal phenomenon.
	422	+* (((
	423	+If you are using US915, AU915 and AS923 frequencies.This is normal phenomenon.
	424	+)))
413	413
414	414	(((
415	415	When using the frequency mentioned above, the server sometimes adjusts the rate of the node, because the node defaults to the adaptive rate.
...	...	@@ -416,9 +416,17 @@
416	416	)))
417	417
418	418	(((
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,and the node will reply to the server after receiving the ADR packet, but the number of payload bytes exceeds the limit,so it will send a normal uplink packet, and an additional 00 data packet.
	431	+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,
420	420	)))
421	421
	434	+(((
	435	+and the node will reply to the server after receiving the ADR packet, but the number of payload bytes exceeds the limit,
	436	+)))
	437	+
	438	+(((
	439	+so it will send a normal uplink packet, and an additional 00 data packet.
	440	+)))
	441	+
422	422	* (((
423	423	Solution: Use the decoder to filter out this 00 packet.
424	424	)))