Top Amateur Radio Websites – Issue 2636

This week, we’re looking at a few interesting builds, from compact multiband solutions to specific band optimizations. There’s a solid 50-watt amplifier project for the HF bands, something that comes up often for those needing a bit more punch without breaking the bank. We also have a couple of vertical antenna designs, one covering multiple bands and another specifically for 20 meters, which is always a popular choice for portable work. For those running an Icom IC-705, there are some practical insights into maximizing its potential in the field. And for stealth operations, a window loop antenna for 20 meters offers a clever approach. These selections should provide some good food for thought for anyone considering their next antenna project or looking to refine their portable setup.

Homebrew W6JL 50 Watt Amplifier for 80-17m

This resource details the construction of a 50-watt FET amplifier, based on the W6JL design, covering 80 through 17 meters. It includes Arduino control and integrated low-pass filters, making it suitable for hams interested in homebrewing a moderate power amplifier.

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20M Window Loop Stealth Antenna Construction Guide

This guide provides instructions for building a 20-meter window frame stealth antenna, adapted from PD7MAA's design. It utilizes a 620cm wire loop and a 4C65 toroidal core, offering a discreet antenna solution for those with limited space or HOA restrictions.

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Compact Open Sleeve Dipole Antenna for 40 and 20 Meters

This article describes the construction of a compact dual-band open sleeve dipole antenna for 40 and 20 meters. It uses 450-ohm ladder line, providing a practical solution for operators needing a smaller footprint multiband antenna.

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All-Band Vertical Antenna Construction and Performance

This resource offers construction details and performance characteristics for a multi-band vertical wire antenna. It covers 80m, 40m, 30m, 20m, 17m, and 10m, benefiting hams looking for a versatile antenna for various HF bands.

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Quarter Wave 20 Meter Vertical Antenna Construction and Performance Data

This entry provides detailed construction and performance data for a portable, bottom-loaded 1/4 wavelength vertical antenna. Optimized for POTA, it covers 10-60 meters, making it useful for portable operators seeking a robust and efficient antenna.

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IC-705 Portable Operations and Antenna Solutions

This resource shares Martin's experiences and DIY modifications for the ICOM IC-705, focusing on portable operations and POTA activations. It includes various antenna solutions, offering practical advice for IC-705 users looking to enhance their field performance.

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That wraps up this week’s collection of technical insights and practical builds. We hope these resources spark some ideas for your next project or help refine your current station. Be sure to check back next week for more, and feel free to share your thoughts or comments on our social channels.