If frequency is one of CN470/AU915/US915, enter the index of the channel
that you want to enable and make them separated by commas.
Examples:
1, 40: Enabling Channel 1and Channel 40
1-40: Enabling Channel 1 to Channel 40
1-40, 60: Enabling Channel 1 to Channel 40 and Channel 60
All: Enabling all channels
Null: Indicates that all channels are disabled
If ADR is disabled, the device will send data via this spread factor.
If the device does not receive ACK packet from network server, it will resend
data once.
Reporting interval ≤ 35 mins: the device will send a specific number of
LinkCheckReq MAC packets to the network server every reporting interval or
2*reporting interval to validate connectivity; If there is no response, the device
will re-join the network.
Reporting interval > 35 mins: the device will send a specific number of