Protocol Number: 34
Channel Re-mapping: Yes
Extended Limits: No
Failsafe Support: Yes
Receiver Match: No
Telemetry: Yes (telemetry sub-protocol only)
Option Value: N/A
Homegrown protocol with variable number of channels (4-16) and telemetry (RSSI, V1, V2).
It is a FHSS protocol developed by Dennis Cabell (KE8FZX) using the NRF24L01+ 2.4 GHz transceiver.
45 channels are used frequency hop from 2.403 through 2.447 GHz. The reason for using 45 channels is to keep operation within the overlap area between the 2.4 GHz ISM band (governed in the USA by FCC part 15) and the HAM portion of the band (governed in the USA by FCC part 97).
This allows part 15 compliant use of the protocol, while allowing licensed amateur radio operators to operate under the less restrictive part 97 rules if desired.