/products/roadtest/b/blog/posts/adi-adalm2000---learning-about-twisted-pair-transmission-linesMy ADI ADALM2000 device, received under Element14&#39;s Roadtest program, came at a time when I had begun working on a project related to communications on relatively long (few kilometers long) twisted pairs. I have used cables in differen...en-USTelligent Community 12https://community.element14.com/products/roadtest/b/blog/posts/adi-adalm2000---learning-about-twisted-pair-transmission-linesMon, 26 Jun 2023 13:40:24 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:02232df2-9747-4621-af07-7c12c629e70bjc20480<p>Another interesting blog. I&#39;m glad you got one of the ADALM2000s to test.</p> <p>I think the velocity of propagation is affected by the dk (dielectric constant) of the material insulating the wires. If that&#39;s right, you will see variation between cables.</p> <p>Having said that, your figure does seem slow. Can you identify the manufacturer and the type code of the cable? If so, you may well find a figure on the datasheet.</p><img src="https://community.element14.com/aggbug?PostID=26151&AppID=14&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/products/roadtest/b/blog/posts/adi-adalm2000---learning-about-twisted-pair-transmission-linesMon, 19 Jun 2023 19:50:06 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:02232df2-9747-4621-af07-7c12c629e70bDAB1<p>Very good post.</p> <p>I remember when I first started working with computers in the 1970&#39;s they were lots of information on the backplanes of the computer chassis about how they tuned each buss line as a transmission line to reduce reflections at 1 MHz.</p> <p>We never conceived that today we would have bus lines running in the GHz range.</p><img src="https://community.element14.com/aggbug?PostID=26151&AppID=14&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/products/roadtest/b/blog/posts/adi-adalm2000---learning-about-twisted-pair-transmission-linesMon, 19 Jun 2023 19:17:07 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:02232df2-9747-4621-af07-7c12c629e70bbeacon_dave1<p>FYI I&#39;m seeing two broken image embeds in this blog.</p> <p></p> <p>First one here:</p> <p><img src="/resized-image/__size/1280x720/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-02232df2-9747-4621-af07-7c12c629e70b/pastedimage1687202083972v1.png" alt=" " /></p> <p></p> <p></p> <p>and the second one here:</p> <p><img src="/resized-image/__size/1280x720/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-02232df2-9747-4621-af07-7c12c629e70b/pastedimage1687202123994v2.png" alt=" " /></p><img src="https://community.element14.com/aggbug?PostID=26151&AppID=14&AppType=Weblog&ContentType=0" width="1" height="1">