Hello everyone. I work in the US915 band and I have found this document: https://www.raveon.com/wp-content/uploads/2019/05/AN203FCC-ISM.pdf
In which it says that if I use a channel less than 250 kHz I can transmit every 20 seconds, but if I use a channel greater than or equal to 250 KHz I must transmit every 10 seconds.
Is this correct?. Is anyone aware of this regulation please tell me how many times per day can I broadcast using the 915US band