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
Recent Posts
Hurricane Watch Net Remains Active as Florence Makes Landfall in North Carolina
The Hurricane Watch Net (HWN), which has been tracking the approach of Hurricane Florence, plans to remain active “until no longer needed.” The net ac... Read more
The K7RA Solar Update
At 0132 UTC on July 30 the Australian Space Forecast Center issued a geomagnetic disturbance warning, saying a high speed solar wind from a recurring... Read more
Amateur Radio Emergency Service Volunteers & Everything They Have to Offer – Ham Nation 405
Amanda’s EmComm van and tropospheric ducting! A tour of Amanda’s EmComm van, tropospheric ducting with Gordo, Amateur Radio Newsline with... Read more
EL2DW Liberia
Donald, KD4UDU will be active from Liberia until 17 December 2015 as EL2DW. He is active on 20,15,10m from SSB from Monrovia. QSL via KD4UDU. Ads for... Read more
![Yaesu FTDX-101D/MP [ Brochure and Videos ]](https://qrznow.com/wp-content/uploads/2018/11/FTDX101DMP-265x168.jpg)
Yaesu FTDX-101D/MP [ Brochure and Videos ]
Yaesu FTDX-101D /MP Announced features for incredible Yaesu FTdx-101D include: * Elite-Level 160 to 6 Meters 100 Watt Transceiver * Superb and astonis... Read more
New Icom Amateur Products Including the IC-9700 to be Shown at Tokyo Hamfair 2018
IC-9700 As well as have three working demonstration units of the forthcoming IC-9700 VHF/UHF/1.2GHz transceiver, Icom Inc. will be unveiling other pro... Read more
Baofeng Tech: Mobile Radios
“We’re excited to unveil the UV-2501 and UV-5001 Dual Band Mobile Radios. We have spent the last several months refining our first... Read more
![Ground Plane Antennas [ “ARRL The Doctor is In” podcast ]](https://qrznow.com/wp-content/uploads/2018/12/a-ground-plane-antenna-for-noaa-weather-stations-265x168.jpg)
Ground Plane Antennas [ “ARRL The Doctor is In” podcast ]
Ground Plane Antennas “Ground Plane Antennas” is the topic of the new (December 20) episode of the “ARRL The Doctor is In” podcast. Listen…and l... Read more
N1ZZZ Wins February QST Cover Plaque Award
The winner of the February 2015 QST Cover Plaque award is Jeremy Allen, N1ZZZ, for his article “A Seven Seas Shack.” The QST Cover Plaque Award... Read more
Morse Code – Principles and Basic Techniques (US Army Signal)
A very nostalgic look at Morse Code as taught by the Signal Corps, US Army. This is a film released by the Department of Defense, Department of... Read more
Big sunspot AR2738 is crackling with B-class solar flares.
B IS FOR “BOMB”: Big sunspot AR2738 is crackling with B-class solar flares. This morning in France, astrophotographer Philippe Tosi caught... 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
