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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	75	=== 3.1.3 AS923-2 ===
76	76
77	77	* Default Uplink channel:
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84	84	** Uplink channels 1-8 (RX1)
85	85	** 921.4 - SF10BW125 (RX2)
86	86
87		-
88	88	=== 3.1.4 AS923-3 ===
89	89
90	90	* Default Uplink channel:
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97	97	** Uplink channels 1-8 (RX1)
98	98	** 916.6 - SF10BW125 (RX2)
99	99
100		-
101	101	=== 3.1.5 AS923-4 ===
102	102
103	103	* Countries : Israel
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110	110	** Uplink channels 1-8 (RX1)
111	111	** 917.3 - SF10BW125 (RX2)
112	112
113		-
114	114	== 3.2 AU915-928(AU915) ==
115	115
116	116	**Before [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]** , Default use CHE=2
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140	140	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.
141	141	)))
142	142
	133	+(((
	134	+
	135	+)))
143	143
144	144	(((
145	145	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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155	155	)))
156	156	* (((
157	157	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)
158		-
159		-
160	160	)))
161	161
162	162	== 3.3 CN470-510 (CN470) ==
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184	184	** 508.1 - SF7BW125 to SF12BW125
185	185	** 505.3 - SF12BW125 (RX2 downlink only)
186	186
187		-
188	188	== 3.4 EU863-870 (EU868) ==
189	189
190	190	* Uplink:
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216	216	** Uplink channels 1-3 (RX1)
217	217	** 866.550 - SF10BW125 (RX2)
218	218
219		-
220	220	== 3.6 KZ865 ==
221	221
222	222	* Uplink ~-~- 125Khz , DR0 - DR5
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230	230	** The RX1 receive window uses the same channel as the preceding uplink.
231	231	** The RX2 receive window uses a fixed frequency and data rate. The default parameters are 866.7MHz / DR0 (SF12, 125 kHz)​
232	232
233		-
234	234	== 3.7 KR920-923 (KR920) ==
235	235
236	236	* Default channel:
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251	251	** Uplink channels 1-7(RX1)
252	252	** 921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
253	253
254		-
255	255	== 3.8 MA869 ==
256	256
257		- Country: Morroco
258		-
259	259	* Uplink:
260	260	** 869.1 - SF7BW125 to SF12BW125
261	261	** 869.3 - SF7BW125 to SF12BW125
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271	271	** Uplink channels 1-9 (RX1)
272	272	** 869.525 - SF12BW125 (RX2 downlink only)
273	273
274		-
275	275	== 3.9 US902-928 (US915) ==
276	276
277	277	Used in USA, Canada and South America.
278	278
279		-
280	280	=== 3.9.1 Before [[Dragino DLS-005 LoRaWAN Stack>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/DR-LWS/changelog]]. ===
281	281
282	282	Default use CHE=2, Subband 2
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321	321	)))
322	322	* (((
323	323	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)
324		-
325		-
326	326	)))
327	327
328	328	= 4. Frequency Bands for different server =