https://devzone.nordicsemi.com/f/nordic-q-a/37093/nrf52832-scan-channel-errorHello, I used nrf52832 as a scanner. Now i use it to scan only one tag. And the TAG advertise data addcoring to ble 4.0. Now i find scan channels are not 37,38,39,37,38,39,.......they are like this: 37 37 37 37....(about 3 seconds)...38 38 38..en-USTelligent Community 13Thu, 02 Aug 2018 08:38:32 GMThttps://devzone.nordicsemi.com/thread/142540?ContentTypeID=1Thu, 02 Aug 2018 08:38:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5ff51261-f576-4540-bbcf-3882ba45fddfliu<p>Oh ,yes,my scan window and scan interval are all 3s.</p> <p>Thanks.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/142538?ContentTypeID=1Thu, 02 Aug 2018 08:26:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a6990d29-69ae-41f2-baf9-eaa110192b2eEinar Thorsrud<p>Hi,</p> <p>The radio can receive on one channel at a time, and the SoftDevice will use the same channel for the whole scan window (of configurable length). It seems to me that you have a scan window of about 3 seconds, as all advertisement packets within 3 seconds are received on the same channel. If you want to change channel more often,&nbsp;you need to reduce the scan window accordingly, by adjusting the <code>window</code> field in the&nbsp; <code><a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s132.api.v6.0.0/structble__gap__scan__params__t.html?cp=2_3_1_1_0_2_1_4_10">ble_gap_scan_params_t</a></code> instance that you pass to&nbsp;<code>sd_ble_gap_scan_start()</code>. (You may also want to adjust the&nbsp;<code>interval</code> field accordingly, if you want to maintain the same scan duty cycle.)</p><div style="clear:both;"></div>