https://devzone.nordicsemi.com/f/nordic-q-a/77913/maximum-switch-pattern-length-direction-finding-exampleHi I am working on direction finding examples, based on CTE feature that is introduced in BLE v5.. I have build and run both &quot;tx&quot; and &quot;rx&quot; examples successfully as described here: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrfen-USTelligent Community 13Tue, 27 Jul 2021 10:34:58 GMThttps://devzone.nordicsemi.com/thread/322014?ContentTypeID=1Tue, 27 Jul 2021 10:34:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bc11abc2-7e5e-4dec-b879-3a09b2ba17edSaleh<p>I found the answer!</p> <p></p> <p>The maximum number of the antennas can be configured using &quot;<span id="cmdoption-arg-config-bt-ctlr-df-max-ant-sw-pattern-len"></span><code class="sig-name descname"><span class="pre">CONFIG_BT_CTLR_DF_MAX_ANT_SW_PATTERN_LEN</span></code><code class="sig-prename descclassname"></code><a class="headerlink" title="Permalink to this definition" href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/kconfig/CONFIG_BT_CTLR_DF_MAX_ANT_SW_PATTERN_LEN.html#cmdoption-arg-CONFIG_BT_CTLR_DF_MAX_ANT_SW_PATTERN_LEN"></a>&quot; as described here:</p> <p><a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/kconfig/CONFIG_BT_CTLR_DF_MAX_ANT_SW_PATTERN_LEN.html#cmdoption-arg-CONFIG_BT_CTLR_DF_MAX_ANT_SW_PATTERN_LEN">https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/kconfig/CONFIG_BT_CTLR_DF_MAX_ANT_SW_PATTERN_LEN.html#cmdoption-arg-CONFIG_BT_CTLR_DF_MAX_ANT_SW_PATTERN_LEN</a></p> <p></p> <p>Note: While in the above document, it is mentioned that the valid range is 3 to 40, but in practice it accepts values between 2 to 39</p><div style="clear:both;"></div>