I wonder about the exact number of messages, in theory it is 140messages per day. but practically the each message is sent 3 times so in total 3 x 140 = 420 messages ! is this right ? so in this case the device needs to select randomly different 420 frequencies from available spectrum/channels ?
Thank you very much
Answer by francois.oudot · Feb 13 at 07:32 PM
The way it works is that 1 message is sent over 3 frames at 3 different frequencies. So 140 messages = 420 frames. Slight difference in terminology but it allows to understand each other.
You are correct for your second question.