Reply To: CEPT 70-03 and 869.8 channel in South Africa

The frequencies used to setup the Channel Plan are located here.

https://os.mbed.com/teams/MultiTech/code/libmDot-dev-mbed5-deprecated//file/0f5a742a08cd/Lora.h/

    const uint32_t EU868_MILLI_1_FREQ_MIN = 868700000;
    const uint32_t EU868_MILLI_1_FREQ_MAX = 869200000;

And used in ChannelPlan_EU868.cpp to setup the duty-cycle band with a max power on lines 201-208.

    band.Index++;
    band.FrequencyMin = EU868_MILLI_1_FREQ_MIN;
    band.FrequencyMax = EU868_MILLI_1_FREQ_MAX;
    band.PowerMax = 14;
    band.TimeOffEnd = 0;
    band.DutyCycle = 1000;
 
    AddDutyBand(-1, band);

The PowerMax is used in SetTxConfig to limit the max power allowed on the channels within the defined band.

Let me know if that helps.