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1		-**~ Contents:**
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2	2
3	3	{{toc/}}
4	4
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172	172
173	173	we can use AT Command (AT+CFG) to check the RX1 configure and RX2 configure. as below:
174	174
175		-(% class="box infomessage" %)
176	176	(((
177		-AT+RX2FQ=869525000 ~-~--> The RX2 Window frequency
178		-)))
	176	+{{info}}
	177	+{{{AT+RX2FQ=869525000 ---> The RX2 Window frequency
	178	+AT+RX2DR=3 ---> The RX2 DataRate
	179	+AT+RX1DL=1000 ---> Receive Delay 1
	180	+AT+RX2DL=2000 ---> Receive Delay 2}}}
	181	+{{/info}}
179	179
180		-(% class="box infomessage" %)
181		-(((
182		-AT+RX2DR=3 ~-~--> The RX2 DataRate
	183	+
183	183	)))
184	184
185		-(% class="box infomessage" %)
186		-(((
187		-AT+RX1DL=1000 ~-~--> Receive Delay 1
188		-)))
189		-
190		-(% class="box infomessage" %)
191		-(((
192		-AT+RX2DL=2000 ~-~--> Receive Delay 2
193		-)))
194		-
195	195	when the device running, we can see below info:
196	196
197	197	{{{[12502]***** UpLinkCounter= 0 *****
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225	225	* Gateway traffic (from server UI) to shows the data exchange between gateway and server.
226	226	* End Node traffic (from server UI) to shows end node activity in server.
227	227
	219	+
228	228	= 6. Downlink Issue ~-~- Packet REJECTED, unsupported frequency =
229	229
230	230	In LoRaWAN, the gatewat will use the frequency specify by the server to transmit a packet as downlink purpose. Each Frequency band has different downlink frequency. and the gateway has a frequency range limited to transmit downlink.
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318	318	* Solution: Use the decoder to filter out this 00 packet.
319	319	* 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
320	320
321		-(% class="wikigeneratedid" id="H" %)
322		-
	313	+== ==