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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>nRF52833 BLE direction finding IQ samples are out of range?</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/69053/nrf52833-ble-direction-finding-iq-samples-are-out-of-range</link><description>HW: nrf52833-DK 
 SW: SDK v16.0.0 and SoftDevice s140 
 
 We are using nRF52833 BLE direction feature and read IQ samples produced by BLE Radio. 
 The format of the IQ samples is described as follows: 
 
 According to the documentation both I and Q must</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Thu, 03 Dec 2020 13:57:00 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/69053/nrf52833-ble-direction-finding-iq-samples-are-out-of-range" /><item><title>RE: nRF52833 BLE direction finding IQ samples are out of range?</title><link>https://devzone.nordicsemi.com/thread/283113?ContentTypeID=1</link><pubDate>Thu, 03 Dec 2020 13:57:00 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:2193cb77-8d7b-45c5-8585-251f5705fbca</guid><dc:creator>adel</dc:creator><description>&lt;p&gt;Thanks for the swift reply.&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: nRF52833 BLE direction finding IQ samples are out of range?</title><link>https://devzone.nordicsemi.com/thread/283092?ContentTypeID=1</link><pubDate>Thu, 03 Dec 2020 13:24:33 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:db7b9dea-2dfb-4f8c-98c7-0f67e0ef8302</guid><dc:creator>Kenneth</dc:creator><description>&lt;p&gt;Hi, I can check if someone may have an idea.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Edit&lt;/strong&gt;: Looks like there is missing a &amp;quot;out of range samples are saturated at value -32768&amp;quot; from the table you refer to. This is included for the same chapter for nRF5340:&lt;br /&gt;&lt;a href="https://infocenter.nordicsemi.com/topic/ps_nrf5340/radio.html#concept_dfe_iq_sampling"&gt;https://infocenter.nordicsemi.com/topic/ps_nrf5340/radio.html#concept_dfe_iq_sampling&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;In other words these values should be discarded.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>