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3	3
4	4	{{toc/}}
5	5
6		-
7		-
8		-
9	9	= 1. Introduction =
10	10
11	11	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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14	14	* 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]]
15	15
16	16
17		-
18	18	= 2. OTAA Join Behaviour =
19	19
20	20	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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27	27	* 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
28	28
29	29
30		-
31	31	= 3. Default Frequency Bands =
32	32
33	33
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72	72	** 923.2 - SF10BW125 (RX2)
73	73
74	74
75		-
76	76	=== 3.1.3 AS923-2 ===
77	77
78	78	* Default Uplink channel:
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236	236	** The RX1 receive window uses the same channel as the preceding uplink.
237	237	** The RX2 receive window uses a fixed frequency and data rate. The default parameters are 866.7MHz / DR0 (SF12, 125 kHz)​
238	238
	233	+
	234	+
239	239	== 3.7 KR920-923 (KR920) ==
240	240
241	241	* Default channel:
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256	256	** Uplink channels 1-7(RX1)
257	257	** 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
258	258
	255	+
	256	+
259	259	== 3.8 MA869 ==
260	260
261	261	Country: Morroco
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275	275	** Uplink channels 1-9 (RX1)
276	276	** 869.525 - SF12BW125 (RX2 downlink only)
277	277
	276	+
278	278	== 3.9 US902-928 (US915) ==
279	279
280	280	Used in USA, Canada and South America.
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305	305	** 927.5 - SF7BW500 to SF12BW500
306	306	** 923.3 - SF12BW500(RX2 downlink only)
307	307
	307	+
	308	+
308	308	=== 3.9.2 Latest firmware, Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]] ===
309	309
310	310	(((