Leslie Moxon, G6XN, invented a two-element in the 1950es, named after him. Less Moxon published an article in a QST magazine from 1952 titled Two-Element Driven Arrays describing his antenna.
A Double Bazooka Antenna is a broad-banded half-wave Antenna. This antenna can operate efficiently across an entire band without needing an antenna tuner. In the 1940es, the MIT staff designed and developed this antenna as a radar antenna for the military. Like a dipole, the Double Bazooka is a balanced …
It is often helpful to run tests and take measurements without connecting an antenna. Ham radio operators or anyone who builds or experiments with radio transmitters should have a good dummy load. Since I didn't have such a device, I decided to make one. Dummy Load In radio, a dummy …
I gave a presentation on antenna modeling software to a couple of clubs in California and Oregon. From the physical antenna design to the matching network, we designed the antenna live with the participants. Here is a little more about the talk: During the first part of the talk, we …
A year ago, I installed a system based on a Raspberry Pi Zero to manage my backyard lights. Since the system is installed outside in a weatherproof box, I have decided to install a DS1820 temperature sensor, send the data to APRS1, and use the APRS infrastructure to monitor …
When we re-did our house plumbing, we asked our contractor to install a water recirculation pump. A water re-circulating pump is used to circulate hot water so that any faucet or shower will provide hot water instantly upon demand. What is a recirculation pump? A typical home can hold between …
Over the last few months, I have participated in an increasing number of discussions, either on local repeaters or in zoom meetings, about newly licensed hams interested in operating in the HF bands. Two main questions kept coming back: what radio to buy and what antenna to use. It is …