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1		-XWiki.Bei
	1	+XWiki.karry

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1816	1816	Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1817	1817
1818	1818
1819		-== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
	1819	+== 7.2 Why customers can't join TTN V3 in US915 /AU915 bands? ==
1820	1820
1821	1821
1822	1822	It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1823	1823
1824	1824
	1825	+== 7.3 Why can't customers see the device's data in the server when the data is too long? ==
	1826	+
	1827	+This is due to the limitation of the lorawan protocol, and the fixed DR needs to be adjusted to improve this problem.
	1828	+
	1829	+Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
	1830	+
	1831	+[[lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf>>url:https://lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf]]
	1832	+
	1833	+Example:
	1834	+
	1835	+[[image:image-20240620145456-1.png]]
	1836	+
	1837	+Please refer to the following command to fix DR
	1838	+
	1839	+AT+ADR=0
	1840	+
	1841	+AT+DR=3
	1842	+
	1843	+Downlink command:
	1844	+
	1845	+[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate]]
	1846	+
	1847	+
	1848	+
1825	1825	= 8. Order Info =
1826	1826
1827	1827

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	1	+XWiki.karry

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