The Nordic Thingy:53™ complies with the radiated emission limits in the FCC Title 47 of the Code of Federal Regulations (CFR) Part 15 Subpart C – Intentional radiators when the nRF5340 TX output power and nRF21540 gain configurations are set according to the following protocol-specific channel maps.
Setting/Frequency | 2402–2480 MHz |
---|---|
nRF5340 TX output power | –3 dBm |
nRF21540 gain | 20 dB |
Conducted output power nRF21540 ANT1 PORT | 16.24 dBm (2402 MHz) 14.08 dBm (2440 MHz) 14.32 dBm (2480 MHz) |
Setting/Frequency | 2404–2474 MHz | 2476 MHz | 2478 MHz |
---|---|---|---|
nRF5340 TX output power | –1 dBm | –4 dBm | –8 dBm |
nRF21540 gain | 20 dB | 20 dB | 20 dB |
Conducted output power nRF21540 ANT1 PORT | 16.95 dBm (2404 MHz) 14.82 dBm (2440 MHz) |
14.05 dBm | 11.47 dBm (2478 MHz) |
Setting/Frequency | 2405–2475 MHz |
---|---|
nRF5340 TX output power | 0 dBm |
nRF21540 gain | 20 dB |
Conducted output power nRF21540 ANT1 PORT | 17.22 dBm (2405 MHz) 15.24 dBm (2444 MHz) 15.70 dBm (2475 MHz) |