User Manual

Steps to Transmit
1. Randomly select a channel between 0-71 making sure it was not used on the last
transmit
a. The gateway could limit this to any grouping of 8 contiguous channels when the
device joins the network, but when attempting to join the network for the first time
the device will use all 72 channels. Each block of 8 125kHz channels is assigned
1 500kHz channel. The channel blocks of 8+1 are 0-7+64, 8-15 +65, 16-23 +66,
24-31 +67, 32-39 +68, 40-47 +69, 48- 53 +70, and 54-63 +71.
2. Transmit 1 packet of data on that channel in under 400milliseconds
3. Switch to receive mode and listen for gateway to respond within 2 seconds
4. Turn off transceiver for a random time between 20-50 seconds
5. Check if another packet needs to be sent
a. if a packet is ready to send go to step 1 and repeat
b. If no packet to send, transceiver is kept off