Building the Shorty 4020 Antenna for 40M and 20M Operation

Space has always been one of the biggest challenges in amateur radio. Full-size HF dipoles work well, but not everyone has enough room for long wire antennas stretched across a backyard. That’s exactly where the Shorty 4020 antenna becomes interesting.

The Shorty 4020 is a compact dual-band dipole designed for 40 meters and 20 meters. Its biggest advantage is simple: it reduces the physical size normally required for a 40m dipole while still providing respectable HF performance.

For apartment operators, portable activators, and anyone dealing with restricted installation space, this antenna has gained a solid reputation over the years.

Building the Shorty 4020 Antenna for 40M and 20M Operation

DIY 145 MHz Twin Delta Loop Antenna for Ham Radio Operators

The 145 MHz Twin Delta Loop Antenna is one of the most efficient and easy-to-build antennas for the 2-meter amateur radio band. With its excellent gain, wide radiation pattern, and stable SWR, this antenna has become a top choice among VHF enthusiasts and home-brew antenna builders. In this guide, we will explore the design, dimensions, feeding method, and performance characteristics of a well-optimized Twin Delta Loop antenna for 145 MHz.

DIY 145 MHz Twin Delta Loop Antenna for Ham Radio Operators

Double Dipole Antenna for 80–10 Meter Bands

A double dipole antenna remains one of the most practical choices for amateur radio operators who want reliable HF coverage without using a complicated antenna system. The design shown here uses a 31-meter overall length and supports operation across multiple amateur bands from 80 meters through 10 meters.

This antenna is simple, low cost, and effective. It works well for operators who need strong regional coverage on lower bands and reasonable DX performance on higher frequencies.

Double Dipole Antenna for 80–10 Meter Bands

The Ultimate 20m Stealth Antenna: A Window Loop Guide

If you’re stuck in an apartment or a neighborhood with strict HOA rules, getting on the 20-meter band often feels like an uphill battle. You want to make contacts and participate in nets, but you can’t exactly mount a massive beam or a standing vertical on your roof without causing a stir. That’s where the PD7MAA Window Frame stealth Antenna comes in to save your hobby.

The Ultimate 20m Stealth Antenna: A Window Loop Guide: