SimpleHRR is a free ham radio remote control web application (or web app) hosted by Raspberry Pi in the ham station to remote control a ham radio HF transceiver through a supported web browser from a Desktop PC, Laptop or Android phone. Supports recent ICOM IC-7x series transceivers
This tutorial introduces and explains Smith Charts, and then gives an introduction to impedance matching. Smith Chart is a tool to visualize the impedance of a transmission line and antenna system as a function of frequency.
A large archive of medium-wave and long-wave broadcasting antennas from all over the world
This Website is here to enhance the Amateur Radio experience and for those who are interested in multiple areas of our great hobby. We have information about Amateur Radio Emergency Communications. There are many areas in our great hobby that serve different capacities, ARES, RACES, NTS, FEMA, Linux, and much more.
A free educational website offering hands-on battery information. The tutorials evaluate the advantages and limitations of diverse battery chemistries, advise on best choices, and suggest ways to extend life.
Testing of real antennas is fundamental to antenna theory. The most common and desired measurements are the antenna radiation pattern including antenna gain and efficiency, the impedance or VSWR, the bandwidth, and the polarization. The procedures and equipment used in antenna measurements are described in this page.
Generators are broken down into three basic types: conventional gas, inverter, and diesel. What is the difference between these? Which is best? Do you even need a generator if you already have solar or other off grid energy available? Let’s sort it out.
Four part series of assembly videos of the Elecraft KX3. Even if these videos are not a step by step format of the build but rather viewing completed steps with learned information, the author pass along to help your build go smoother