Here is a link to some explanations about sub giga frequency use in Japan サブギが帯
https://mono-wireless.com/jp/tech/920vs24.html
![](https://thethingsnetwork.org/media/communities/headers/cef75380550347528a2be96ad6227cb1.medium.png)
Here is a link to some explanations about sub giga frequency use in Japan サブギが帯
https://mono-wireless.com/jp/tech/920vs24.html