If you are a hacker, you might consider ham radio operators as innovative. Most people, however, just see them as cheap. So it is no surprise that hams like [jmharvey] will build an antenna analyzer from a DDS module and an Arduino instead of dropping a few hundred dollars on a commercial unit. As he points out, you probably only need an analyzer for a day or two while you set up an antenna. Unless you are a big time antenna builder, the unit will then sit idle on the shelf (or will wind up on loan to hams even cheaper than you are).
The design is rooted in another proven design, but changed to take advantage of parts he happened to have on hand. Although the build is on a universal circuit board, [jmharvey] used Eagle to lay out the circuit as though it were a PCB. Since placement can be important with an RF circuit, this isn’t a bad idea. It’s always easier to move stuff around on the screen than on the perf board…..
Read Full Article: Link
“Despite a spotless Sun, solar activity picks up this week with some fast wind that has bumped us up to storm levels. Catch up on aurora shots f... Read more
Is there a station that you really want to discover where they are transmitting from? http://kiwisdr.com/ has a solution. By using multiple receivers... Read more
Martin Butler (M1MRB / W9ICQ) of the ICQ Amateur / Ham Radio Podcast interviews Graham Somerville of BHI Noise Cancelling Products at the Ham Radio Fr... Read more
by Sean Trainor The telegraph has become the epitome of an obsolete technology. The last telegram was sent two years ago, and Morse code blinked... Read more
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2F40-antenna-analyzer-with-arduino-and-ad9850%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151