<?xml-stylesheet type="text/xsl" href="https://community.element14.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/"><channel><title>FDR Testing Feedline Using VIA Echo</title><link>/technologies/wireless/b/blog/posts/fdr-testing-feedline-using-via-echo</link><description>What kind of practical information can we get when we connect a frequency domain reflectometry (FDR) analyzer to coax going to antenna outside? Last year when I reviewed the AEA Technology VIA Echo VNA, I covered the VNA and spectrum analyzer f...</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>RE: FDR Testing Feedline Using VIA Echo</title><link>https://community.element14.com/technologies/wireless/b/blog/posts/fdr-testing-feedline-using-via-echo</link><pubDate>Fri, 06 Sep 2013 19:20:58 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:38c22a29-f1cf-40fb-8f58-649f182b32da</guid><dc:creator>DAB</dc:creator><slash:comments>1</slash:comments><description>&lt;p&gt;It is amazing what you can find when you actually look beyond the expected operational parameters.&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;p&gt;I have seen a lot of systems undertested in regard to their performance in the real world.&lt;/p&gt;&lt;p&gt;Many manufacturers just verify their operating conditions and as long as they meet those goals, they think everything is fine.&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;p&gt;When I was involved with a large integrated testing facility, we made sure that the system would look at the full RF spectrum of emissions from the test articles.&amp;nbsp; We found you can identify a lot of interference issues when you understand the full spectrum.&lt;/p&gt;&lt;p&gt;We also ran the RF devices while transmitting a full range of RF signals.&amp;nbsp; You should have seen the results.&amp;nbsp; There were all kinds of interesting affects in some of the devices when they encountered out of band and harmonic frequencies.&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;p&gt;I am envious of your tools.&amp;nbsp; We had nothing like those when we were chasing down line problems.&amp;nbsp; They could have saved us a lot of time.&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;p&gt;You have to love the advance of technology.&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;p&gt;DAB&lt;/p&gt;&lt;img src="https://community.element14.com/aggbug?PostID=16336&amp;AppID=5&amp;AppType=Weblog&amp;ContentType=0" width="1" height="1"&gt;</description></item></channel></rss>