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From version < 8.2 >
edited by Xiaoling
on 2022/06/06 15:49
To version < 8.3 >
edited by Xiaoling
on 2022/06/06 15:51
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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.
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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.
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923 923  [[image:image-20220606154726-3.png]]
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934 934  * 905.3 - SF7BW125 to SF10BW125
935 935  * 904.6 - SF8BW500
936 936  
933 +
937 937  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:
938 938  
936 +(% class="box infomessage" %)
937 +(((
939 939  **AT+CHE=2**
939 +)))
940 940  
941 +(% class="box infomessage" %)
942 +(((
941 941  **ATZ**
944 +)))
942 942  
943 943  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.
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