It can be seen from the US915 protocol that DR4 is SF8 and 500KHZ. Only the 65th channel meets 500KHZ, so when DR is 4, it will always be on this channel.
It can be seen from the us915 protocol that when DR4 is SF8 and 500KHz, only the 65th channel meets 500KHz, so when Dr is 4, it will always be on this channel<br>
According to the protocol of US915, when DR is 4, it is SF8 and 500KHZ. only the 65th channel meets 500KHZ, so when dr is 4, it will always be on this channel.