%XRFTEST modulated signal offset by 1.675 MHz from set frequency - modem v1.2.2https://devzone.nordicsemi.com/f/nordic-q-a/69555/xrftest-modulated-signal-offset-by-1-675-mhz-from-set-frequency---modem-v1-2-2I&#39;m seeing the modulated output of %XRFTEST offset by approx. 1.675 MHz from the set frequency. Modem version is v1.2.2 Here&#39;s my command: AT%XRFTEST=1,1,1,19500,23,1,1,6,0,0,3,3,0 And here&#39;s the spectrum: I see this in multiple bands. en-USTelligent Community 13Fri, 18 Dec 2020 22:32:18 GMTRE: %XRFTEST modulated signal offset by 1.675 MHz from set frequency - modem v1.2.2https://devzone.nordicsemi.com/thread/285916?ContentTypeID=1Fri, 18 Dec 2020 22:32:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bc18e902-3689-4b26-b06a-3f2af9309824sjacobsen<p>Worked great, thanks!</p><div style="clear:both;"></div>RE: %XRFTEST modulated signal offset by 1.675 MHz from set frequency - modem v1.2.2https://devzone.nordicsemi.com/thread/285798?ContentTypeID=1Fri, 18 Dec 2020 11:05:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d79d9692-5c62-4974-aa88-dfb03095ac48JONATHAN LL<p>Hi,&nbsp;<br /><br /><span>&nbsp;Try this AT%XRFTEST=1,1,1,19500,23,1,1,6,0,0,0,0,0 <br /><br />Change&nbsp;the 3&#39;s to 0&#39;s.&nbsp; This should remove the offset.<br /><br />The 3s set system bandwidth&nbsp;to 5Mhz mode and narrowband index to 3.&nbsp;<a href="https://infocenter.nordicsemi.com/topic/ref_at_commands/REF/at_commands/mob_termination_ctrl_status/xrftest_tx_test.html?cp=2_1_4_19_0_1">Link</a>.<br /><br />Regards,<br />Jonathan</span></p><div style="clear:both;"></div>RE: %XRFTEST modulated signal offset by 1.675 MHz from set frequency - modem v1.2.2https://devzone.nordicsemi.com/thread/285696?ContentTypeID=1Thu, 17 Dec 2020 16:17:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5effc0f4-8599-4544-8973-ec572939f9fasjacobsen<p>DK PCA10090 0.15.0 2020.42 960099063 IMEI 352656106124749</p><div style="clear:both;"></div>RE: %XRFTEST modulated signal offset by 1.675 MHz from set frequency - modem v1.2.2https://devzone.nordicsemi.com/thread/285679?ContentTypeID=1Thu, 17 Dec 2020 15:13:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:91067099-522d-4032-9b4c-4993d3efd332JONATHAN LL<p>Are you using a DK, Thingy or a custom board?<br />Regards,<br />Jonathan</p><div style="clear:both;"></div>RE: %XRFTEST modulated signal offset by 1.675 MHz from set frequency - modem v1.2.2https://devzone.nordicsemi.com/thread/285452?ContentTypeID=1Wed, 16 Dec 2020 19:46:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:04289171-4e31-4aac-82dc-656bc9b8a983sjacobsen<p>I get the offset plus the CW offset, so even more offset.&nbsp;</p><div style="clear:both;"></div>RE: %XRFTEST modulated signal offset by 1.675 MHz from set frequency - modem v1.2.2https://devzone.nordicsemi.com/thread/285416?ContentTypeID=1Wed, 16 Dec 2020 15:52:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4f5ec2e9-b3ed-4188-b4dd-dc1cfa42e52bJONATHAN LL<p>Hi<br /><br />Do you gett the offset if you set the CW to be 1.951675 GHz ? Might be possible that the modem &quot;snapps&quot; to what it believes is the correct band.&nbsp; I will update you on the matter<br /><br />Regards,<br />Jonathan</p><div style="clear:both;"></div>