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...	...	@@ -7,11 +7,12 @@
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8	8	This chapter introduces how users can change the uplinkdwell time.
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10	10	= 2. Default uplinkdwelltime =
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12	12	Take AS923 frequency band as an example. We can see the spread spectrum factor corresponding to the data rate.
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14		-[[image:https://wiki.dragino.com/images/2/25/Vbn.png||alt="Vbn.png" height="290" width="523"]]
	15	+[[image:image-20220527091341-1.png]]
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16	16	The device default uplinkdwelltime=1, there are SF7, SF8, SF9 and SF10.
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