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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>Code PHy Mode, Advertisment Power vs. 1M mode</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/94382/code-phy-mode-advertisment-power-vs-1m-mode</link><description>Devices: nrf52840 peripheral to nrf52833 central 
 
 background: We switched the mode from BLE_GAP_PHY_1MBPS, to BLE_GAP_PHY_CODED. The content of the advertisement data was not changed. 
 power concerns : The current measured in the BLE_GAP_PHY_CODED</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Wed, 30 Nov 2022 13:47:40 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/94382/code-phy-mode-advertisment-power-vs-1m-mode" /><item><title>RE: Code PHy Mode, Advertisment Power vs. 1M mode</title><link>https://devzone.nordicsemi.com/thread/398353?ContentTypeID=1</link><pubDate>Wed, 30 Nov 2022 13:47:40 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:89ce6e7b-def0-445d-8d05-7a1fb5825204</guid><dc:creator>DanPhelan</dc:creator><description>&lt;p&gt;Hung,&lt;/p&gt;
&lt;p&gt;Thanks for the information.&amp;nbsp; Our measurements make sense.&lt;/p&gt;
&lt;p&gt;Dan&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Code PHy Mode, Advertisment Power vs. 1M mode</title><link>https://devzone.nordicsemi.com/thread/398286?ContentTypeID=1</link><pubDate>Wed, 30 Nov 2022 10:23:29 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:dacbf80b-ea16-4633-8c37-551aacde9fce</guid><dc:creator>Hung Bui</dc:creator><description>&lt;p&gt;Hi Dan,&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Coded PHY mode actually use the same 1Mbps modulation to send data, just using more redundancy bit for error correction to achieve longer range. For example with S=8,&amp;nbsp;&lt;span&gt;each bit is represented by eight symbols.&lt;/span&gt; So for the same amount of data it will use 8 times more time to transmit.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;br /&gt;You can take a look a this video:&amp;nbsp;&lt;a href="https://www.bluetooth.com/bluetooth-resources/intro-to-bluetooth-low-energy-coded-phy/"&gt;https://www.bluetooth.com/bluetooth-resources/intro-to-bluetooth-low-energy-coded-phy/&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Note that not only the power consumption is the drawback, the throughput is also reduced to 125kbps when you use S8.&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>