Quote Originally Posted by koossa View Post
What will hapen when 2 or 3 transmitters, transmit at the same time?
Most likely you'll receive a nonsense transmission if they indeed transmit at the same exact time. You need to embed a transmitter ID within the transmission packet and add a CRC or checksum to determine whether the data packet is valid and, if so, from whence it came. Also, there are limits on how often a transmitter can transmit. Adding a bit of randomness to the transmission schedules will minimize collisions. What's the application?