Learn how antenna traps work using LC circuits to create multiband antennas. Practical guide to trap design, placement, and when traps make sense for your station.
Guide to ham radio antenna switching systems. Coaxial relay switches, remote antenna selectors, stacking switches, and how to manage multiple antennas safely.
How to model ham radio antennas with EZNEC and 4NEC2 software. Setting up your first model, interpreting results, ground effects, and validating designs before building.
Should you buy a higher-gain antenna or raise the one you have? Real-world analysis of antenna height versus gain for HF, VHF, and practical ham stations.
Why antennas have specific feedpoint impedances, what determines the 50-ohm standard, and practical methods for matching antennas that don't present 50 ohms.
How Allstar Link and EchoLink connect ham repeaters over the internet. Setup guides, use cases, differences, and tips for getting the most from VoIP linking.
Set up ADS-B aircraft monitoring with RTL-SDR. Antenna design, software setup, feeding networks, and how aviation monitoring connects to ham radio skills.
Discover why 40 meters after dark is the go-to HF band for domestic ragchewing. Tips on antennas, propagation patterns, and making contacts across the country.
Step-by-step guide to getting your amateur radio license. Learn about Technician, General & Extra classes, study resources, and what to expect on exam day.
