Jim W6LG YouTube Elmer shows how to measure insertion loss on a box he built with a relay inside to select one of two linear amplifiers. He uses a NanoVNA to measure the insertion loss in an interesting way.
Build your own Roll Up Slim Jim Antenna for the 2 Meter Ham Radio Band. Read more
Photo:K3RF Hy-Gains new AV-640 Patriot HF vertical is the best built, best performing and best priced multiband vertical available today. Make full us... Read more
SNR – Signal-to-Noise Ratio From the 2018 TAPR Digital Communications Conference, we learn about a true measurement of signal to noise ratio on... Read more
Ham radio & 3D printing – A very portable table stand for the Icom IC-705. Read more
https://www.youtube.com/watch?v=yOkdg1lGfes Read more