non-compliance with standards

[AnatoliiBeep]

unfortunately your solution does not correspond ETSI EN 300 328.
the frequency value should cover more than 70% of the range 2400MHz - 2483MHz - the value spread should be more than 59MG
in this case 15 jumps are enough
adaptive method not implemented : DAA(listening to the channel before transmission),deciding on the use of the channel, transfer, idle mode.
for a non-adaptive method - 5 transitions are enough, but the maximum transmission time is no more than 1-10% of the time between transitions, and taking into account all transitions - no more than 5 ms - the total time of all transmission packets, the minimum idle time (at this moment no one should go on the air) - 5 ms
idle mode should be used in any method, it should be guaranteed, i.e. any transmitter should track the channel busy time and idle time, you do not have this guaranteed, since there is a start flag and a holding time, but it is polled in the main cycle, which gives a delay in the algorithm, there is no idle flag that would prohibit transmission
in the 2.4 GHz frequency band only spectrum expansion is allowed - FHSS , DSSS, where for the minimum channel holding time (in such types of devices - radio services) 60 ms is accepted, or 400 ms in the adaptive method
if you add more algorithms: sensor measurements, display on the screen, sound signals..., then the start flag of transmission may be late
as a simple example of implementation - yes, a great explanation of the method itself FHSS - at the initial level
I don't want to offend you in any way
I'm just comparing your solution to the standards
even if we consider your decision regarding - EN300 440 short range radio devices-there are the same requirements,