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1	1	(% class="wikigeneratedid" id="HEndDeviceFrequencyBand" %)
2		- **Contents：**
	2	+
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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13	13	* TTN Frequency Band Settings: [[https:~~/~~/www.thethingsnetwork.org/docs/lorawan/frequency-plans.html>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]]
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		-
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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26	26	* EU868 OTAA Join DR select. SF7->SF8->SF9->SF10->SF11->SF12; Each 3 attempts and then loop
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		-
30		-
31	31	= 3. Default Frequency Bands =
32	32
33	33
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44	44	)))
45	45
46	46
	40	+
47	47	=== 3.1.2 AS920-923 & AS923-925 : AS923-1 (AS923) ===
48	48
49	49	* Default Uplink channel:
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71	71	** Uplink channels 1-8 (RX1)
72	72	** 923.2 - SF10BW125 (RX2)
73	73
74		-
75		-
76	76	=== 3.1.3 AS923-2 ===
77	77
78	78	* Default Uplink channel:
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138	138	There is a issue if the end node is fixed at sub-band2. The sensor won't be able to register to other sub-band and can only works for the LoRaWAN server use sub-band2 , such as TTN. To solve this, user need to use a USB-TTL adapter to connect to the end node to manually set the sub-band which is very inconvinient.
139	139	)))
140	140
	133	+(((
	134	+
	135	+)))
141	141
142	142	(((
143	143	So since **Since [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]**, To make sure the end node supports all sub band by default. In the OTAA Join process, the end node will use frequency 1 from sub-band1, then frequency 1 from sub-band2, then frequency 1 from sub-band3, etc to process the OTAA join.
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153	153	)))
154	154	* (((
155	155	Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
156		-
157		-
158	158	)))
159	159
160	160	== 3.3 CN470-510 (CN470) ==
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248	248
249	249	== 3.8 MA869 ==
250	250
251		- Country: Morroco
252		-
253	253	* Uplink:
254	254	** 869.1 - SF7BW125 to SF12BW125
255	255	** 869.3 - SF7BW125 to SF12BW125
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269	269
270	270	Used in USA, Canada and South America.
271	271
272		-
273	273	=== 3.9.1 Before [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]. ===
274	274
275	275	Default use CHE=2, Subband 2
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314	314	)))
315	315	* (((
316	316	Use the Join successful sub-band if the server doesn't include subband info in the OTAA Join Accept message ( TTN v2 doesn't include)
317		-
318		-
319	319	)))
320	320
321	321	= 4. Frequency Bands for different server =