[riot-notifications] [RIOT-OS/RIOT] drivers/mrf24j40 : lower TX power on modules with PA/LNA enabled to s… (#16549)
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Tue Jun 15 14:24:46 CEST 2021
> In the MRF24J40MC datasheet :
> > 3.1.1 MRF24J40MC SETTINGS
> > To meet the FCC requirements, the following settings must be observed by the integrator:• The MRF24J40MC transmit power setting shall not exceed 18.5 dBm (RFCON3 0x203<7:3> = 00101). Refer to Section1.3.4 “Transmit Power Settings”.• Only channels 11 through 25 may be selected (RFCON0 0x200).
> So for MRF24J40MC, max TX power should not exceed 18.5dBm and the user shouldn't use channel 26.
> But this is not stated in the MRF24J40MD/ME datasheet (if I didn't miss something). Maybe they forgot to mention this because I noticed this in the FAR.
> So it's very model specific and we can close my PR I think because of this.
I believe there are difference `mrf24j40**` modules, we can add a specific case for your model/
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