The 3-Element Yagi antenna is a fantastic project for any radio amateur looking for a reliable, high-gain directional antenna that’s surprisingly straightforward to build.
Tag: VHF/UHF Antenna
DIY VHF/UHF antenna projects, designs, and build guides for amateur radio and FM communication. Explore loop, collinear, J-pole, bazooka, and dual-band antennas with dimensions, theory, and construction tips to improve gain, bandwidth, and on-air performance.
Slim-Jim Antenna for FM Broadcast Band reception (88–108 MHz)
Build a Slim-Jim antenna optimized for 88–108 MHz FM broadcast reception. This ¾-wave vertical with integrated matching section delivers omnidirectional coverage, low noise pickup, and improved DX performance over simple dipoles or whips.
Stacked 5/8-wave VHF Antenna for 146 MHz
Stacked 5/8-wave VHF Antenna for 2-meter band (146 MHz). Learn design theory, dimensions, tuning method, and original YY5RM reference for high gain ham radio
Sleeve Dipole Antenna Design Using Coaxial Cable – A Technical Deep Dive
Master the construction of the high-performance Sleeve Dipole antenna using only coaxial cable. This technical deep-dive explains how the “sleeve” acts as a decoupling balun, providing a clean radiation pattern and low SWR for VHF/UHF and HF applications without external chokes
Simple High-Gain collinear antenna using coaxial cable
Learn how to build a simple high-gain collinear antenna using coaxial cable for VHF/UHF amateur radio. Low-cost DIY design with improved omnidirectional coverage and better range than a standard vertical
Dual-Band RW4HFN Antenna for 145/430 MHz bands
Compact dual-band RW4HFN antenna covering 145 MHz (2 m) and 430 MHz (70 cm) with a center-fed element and integrated matching section. Single-feed 50 Ω coax design provides versatile VHF/UHF operation for base, portable, and repeater use.
A Broadband Butterfly Antenna for VHF and UHF
The broadband butterfly (bi-square) antenna uses two connected square loops to deliver stable 50–75 Ω impedance, low noise, and several dB gain over a dipole across VHF/UHF bands. Simple bidirectional design requires no tuning and scales easily for 144 MHz and 430 MHz operation
Square Loop Antenna for 144/430 MHz – Complete DIY Dual-Band Build Guide
The dual-band 144/430 MHz Square Loop Antenna is one of the most efficient and compact VHF/UHF antennas that amateur radio operators can build at home. Designed to cover both the 2-meter and 70-centimeter bands, this antenna offers excellent gain, low noise reception, and impressive SWR when constructed correctly.
DIY 145 MHz Twin Delta Loop Antenna for Ham Radio Operators
Boost your VHF performance with the DIY 145 MHz Twin Delta Loop antenna. This technical guide explains how to construct a high-gain, bi-directional array using simple wire and a gamma match. Perfect for weak-signal 2-meter DX and satellite work without the bulk of a Yagi
UR0GT Broadband Avia Antenna (RW4HVN Mod): The Ultimate Wideband VHF Antenna Guide
Unlock extreme bandwidth with the UR0GT Broadband Avia Antenna (RW4HVN Mod). This technical guide explores the unique geometry that allows for seamless performance across Airband, 2m Ham, and Marine VHF without a tuner. The ultimate wideband solution for VHF explorers and monitoring enthusiasts.