https://devzone.nordicsemi.com/f/nordic-q-a/93664/nrf52832-6db-bandwidth-test-failedhi,We developed a Bluetooth product based on NRF52832, but the bandwidth test was not qualified. According to the requirements of FCC Part 15.247 regulations, the Bluetooth BLE product belongs to digital modulation products, and the bandwidth of 6dB needsen-USTelligent Community 13Tue, 08 Nov 2022 14:25:30 GMThttps://devzone.nordicsemi.com/thread/394738?ContentTypeID=1Tue, 08 Nov 2022 14:25:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a17e03e9-be93-4bf8-8ad2-4a0e1aa3cc8fKaja<p>Hi,<br /><br />this is SW related.&nbsp;<br /><br />This test is to be done with BLE 1 Mbs:<br /><span>&nbsp;</span><span>NRF_RADIO_MODE_BLE_1MBIT</span><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>= RADIO_MODE_MODE_Ble_1Mbit,</span><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>/**&lt; 1 Mbit/s Bluetooth Low Energy. */</span></p> <p>Now you have used nRF 1 Mbs:&nbsp;<br /><span>NRF_RADIO_MODE_NRF_1MBIT</span><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>= RADIO_MODE_MODE_Nrf_1Mbit,</span><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>/**&lt; 1Mbit/s Nordic proprietary radio mode. */</span></p> <p>Best regards,<br />Kaja</p><div style="clear:both;"></div>