This week, we’ve gathered a few interesting items that touch on practical antenna solutions and some less common operating modes. There’s a look at a simple, effective 2-meter vertical, something that often comes up for portable or even fixed station use when space is tight. We also have a piece on a low-band loop, which can be a real performer for those chasing DX on the lower HF bands, especially if noise is an issue. For the experimenters, there’s a guide to setting up a radioless AllStarLink node, which offers a different way to connect. We’ve also included an introduction to EME for those contemplating moonbounce with a more modest setup, and a handy utility for RF circuit design calculations. Finally, a compact 80-meter dipole design for those with limited real estate.
This resource details how to construct an easy-to-build 2-meter vertical antenna. It explains how to use coaxial cable to create a "Flowerpot" antenna, which can significantly improve VHF handheld performance compared to standard rubber duck antennas. This is beneficial for operators seeking better range and signal quality on the 2-meter band with minimal investment.
This article describes an efficient wire loop antenna suitable for lower HF bands. It highlights the antenna's bi-directional radiation pattern and its 2 dB gain over a dipole, making it a low-noise option. Operators looking for an effective, low-cost antenna for 80 or 40 meters, especially in noisy environments, will find this useful.
This guide provides instructions for building a radioless AllStarLink node. It covers necessary components, wiring, power supply considerations, and tips for avoiding common issues like ground loops. This is valuable for hams interested in connecting to the AllStar network without needing a dedicated radio interface.
This PDF presentation serves as a beginner's guide to Earth-Moon-Earth (
EME) operations. It focuses on how to get started with moonbounce using common transceivers and digital modes, without requiring expensive or complex station setups. It's ideal for operators curious about
EME but hesitant due to perceived equipment requirements.
This resource introduces the dBCalc application, a Windows program for converting various RF units. It allows users to quickly convert between dBu, dBm, W, mW, V, and uV, considering input and output resistance. This tool is highly useful for anyone involved in RF circuit design, troubleshooting, or general electronic measurements.
This article presents the LKJ Wednesday Night Special Antenna, a compact 50-foot coil-loaded dipole for 80-meter operation. It details the construction using PVC coils and magnet wire, making it suitable for hams with limited space in residential areas. This design offers a practical solution for 80-meter operation where a full-size dipole is not feasible.
