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1293	1293	(% style="color:red" %)**Note:**
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1295		-(((
1296	1296	(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1297	1297	2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1298	1298	3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1299	1299	4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1300		-)))
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1302	1302	[[image:1654162478620-421.png]]
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