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908	908	When downloading the images, choose the required image file for download. ​
909	909
910	910
	911	+How to set up LSE01 to work in 8 channel mode By default, the frequency bands US915, AU915, CN470 work in 72 frequencies. Many gateways are 8 channel gateways, and in this case, the OTAA join time and uplink schedule is long and unpredictable while the end node is hopping in 72 frequencies.
911	911
912		-How to set up LSE01 to work in 8 channel mode
913	913
914		-By default, the frequency bands US915, AU915, CN470 work in 72 frequencies. Many gateways are 8 channel gateways, and in this case, the OTAA join time and uplink schedule is long and unpredictable while the end node is hopping in 72 frequencies.
915		-
916		-
917	917	You can configure the end node to work in 8 channel mode by using the AT+CHE command. The 500kHz channels are always included for OTAA.
918	918
919	919
920		-
921	921	For example, in **US915** band, the frequency table is as below. By default, the end node will use all channels (0~~71) for OTAA Join process. After the OTAA Join, the end node will use these all channels (0~~71) to send uplink packets.
922	922
	919	+[[image:image-20220606154726-3.png]]
923	923
924		-(% border="1" cellspacing="10" style="background-color:#f7faff" %)
925		-|=(% style="width: 56px;" %)CHE|=(% colspan="9" style="width: 1433px;" %)US915 Uplink Channels(125KHz,4/5,Unit:MHz,CHS=0)
926		-|(% style="width:56px" %)0|(% colspan="9" style="width:1433px" %)ENABLE Channel 0-63
927		-|(% style="width:56px" %)1|(% style="width:63px" %)902.3|(% style="width:70px" %)902.5|(% style="width:68px" %)902.7|(% style="width:70px" %)902.9|(% style="width:464px" %)903.1|903.3|903.5|903.7|Channel 0-7
928		-|(% style="width:56px" %)2|(% style="width:63px" %)903.9|(% style="width:70px" %)904.1|(% style="width:68px" %)904.3|(% style="width:70px" %)904.5|(% style="width:464px" %)904.7|904.9|905.1|905.3|Channel 8-15
929		-|(% style="width:56px" %)3|(% style="width:63px" %)905.5|(% style="width:70px" %)905.7|(% style="width:68px" %)905.9|(% style="width:70px" %)906.1|(% style="width:464px" %)906.3|906.5|906.7|906.9|Channel 16-23
930		-|(% style="width:56px" %)4|(% style="width:63px" %)907.1|(% style="width:70px" %)907.3|(% style="width:68px" %)907.5|(% style="width:70px" %)907.7|(% style="width:464px" %)907.9|908.1|908.3|908.5|Channel 24-31
931		-|(% style="width:56px" %)5|(% style="width:63px" %)908.7|(% style="width:70px" %)908.9|(% style="width:68px" %)909.1|(% style="width:70px" %)909.3|(% style="width:464px" %)909.5|909.7|909.9|910.1|Channel 32-39
932		-|(% style="width:56px" %)6|(% style="width:63px" %)910.3|(% style="width:70px" %)910.5|(% style="width:68px" %)910.7|(% style="width:70px" %)910.9|(% style="width:464px" %)911.1|911.3|911.5|911.7|Channel 40-47
933		-|(% style="width:56px" %)7|(% style="width:63px" %)911.9|(% style="width:70px" %)912.1|(% style="width:68px" %)912.3|(% style="width:70px" %)912.5|(% style="width:464px" %)912.7|912.9|913.1|913.3|Channel 48-55
934		-|(% style="width:56px" %)8|(% style="width:63px" %)913.5|(% style="width:70px" %)913.7|(% style="width:68px" %)913.9|(% style="width:70px" %)914.1|(% style="width:464px" %)914.3|914.5|914.7|914.9|Channel 56-63
935		-|(% colspan="10" %)Channels(500KHz,4/5,Unit:MHz,CHS=0)
936		-|(% style="width:56px" %) |(% style="width:63px" %)903|(% style="width:70px" %)904.6|(% style="width:68px" %)906.2|(% style="width:70px" %)907.8|(% style="width:464px" %)909.4|911|912.6|914.2|Channel 64-71
937		-
938	938	When you use the TTN network, the US915 frequency bands use are:
939	939
940	940	* 903.9 - SF7BW125 to SF10BW125
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947	947	* 905.3 - SF7BW125 to SF10BW125
948	948	* 904.6 - SF8BW500
949	949
	933	+
950	950	Because the end node is now hopping in 72 frequency, it makes it difficult for the devices to Join the TTN network and uplink data. To solve this issue, you can access the device via the AT commands and run:
951	951
	936	+(% class="box infomessage" %)
	937	+(((
952	952	**AT+CHE=2**
	939	+)))
953	953
	941	+(% class="box infomessage" %)
	942	+(((
954	954	**ATZ**
	944	+)))
955	955
956	956	to set the end node to work in 8 channel mode. The device will work in Channel 8-15 & 64-71 for OTAA, and channel 8-15 for Uplink.
957	957
...	...	@@ -958,25 +958,12 @@
958	958
959	959	The **AU915** band is similar. Below are the AU915 Uplink Channels.
960	960
	951	+[[image:image-20220606154825-4.png]]
961	961
962		-|CHE|(% colspan="9" %)AU915 Uplink Channels(125KHz,4/5,Unit:MHz,CHS=0)
963		-|0|(% colspan="9" %)ENABLE Channel 0-63
964		-|1|915.2|915.4|915.6|915.8|916|916.2|916.4|916.6|Channel 0-7
965		-|2|916.8|917|917.2|917.4|917.6|917.8|918|918.2|Channel 8-15
966		-|3|918.4|918.6|918.8|919|919.2|919.4|919.6|919.8|Channel 16-23
967		-|4|920|920.2|920.4|920.6|920.8|921|921.2|921.4|Channel 24-31
968		-|5|921.6|921.8|922|922.2|922.4|922.6|922.8|923|Channel 32-39
969		-|6|923.2|923.4|923.6|923.8|924|924.2|924.4|924.6|Channel 40-47
970		-|7|924.8|925|925.2|925.4|925.6|925.8|926|926.2|Channel 48-55
971		-|8|926.4|926.6|926.8|927|927.2|927.4|927.6|927.8|Channel 56-63
972		-|(% colspan="10" %)Channels(500KHz,4/5,Unit:MHz,CHS=0)
973		-| |915.9|917.5|919.1|920.7|922.3|923.9|925.5|927.1|Channel 64-71
974	974
975	975
976		-
977	977	= 5. Trouble Shooting =
978	978
979		-
980	980	== 5.1 ​Why I can’t join TTN in US915 / AU915 bands? ==
981	981
982	982	It is due to channel mapping. Please see the [[Eight Channel Mode>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]] section above for details.

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