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3	3
4	4	{{toc/}}
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6	6	= 1. Introduction =
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8	8	This page list the default frequency band for Dragino End Devices. The frequency bands are base on TTN Frequency Bands. User can modify upgrade firmware to support different frequency band or use AT Command to change the sub band in some frequency bands.
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11	11	* Frequency Bands vs Country List : Page 11 of [[LoRaWAN Regional Parameters RP2-1.0.3>>url:https://resources.lora-alliance.org/technical-specifications/rp2-1-0-3-lorawan-regional-parameters]]
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14	14	= 2. OTAA Join Behaviour =
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16	16	For 005 LoRaWAN stack: to save battery, once boot, device will make first make 200 tries for OTAA Join, the time period of two Join Requests will depends on the DR and the airtime requirement. After this 200 Join finish, device will send a join request every 20 minutes. If device reboot, it will do above loop again.
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23	23	* US915 and AU915 OTAA Join procedure,. End node by default will use all 72 channels to join and it will be set to use the proper sub-band after Join success
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26	26	= 3. Default Frequency Bands =
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66	66	** Uplink channels 1-8 (RX1)
67	67	** 923.2 - SF10BW125 (RX2)
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69	69	=== 3.1.3 AS923-2 ===
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71	71	* Default Uplink channel:
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265	265	** Uplink channels 1-9 (RX1)
266	266	** 869.525 - SF12BW125 (RX2 downlink only)
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268	268	== 3.9 US902-928 (US915) ==
269	269
270	270	Used in USA, Canada and South America.
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295	295	** 927.5 - SF7BW500 to SF12BW500
296	296	** 923.3 - SF12BW500(RX2 downlink only)
297	297
298		-
299	299	=== 3.9.2 Latest firmware, Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]] ===
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301	301	(((