Twin-Lead J-Pole Antenna for VHF and UHF Amateur Radio
Build a simple twin-lead J-pole antenna for VHF/UHF using 300-ohm ribbon cable. This end-fed half-wave…
Antenna
DIY
VHF/UHF
Antenna
DIY
HF
VHF/UHF
3 x 5/8 Collinear antenna for 435 MHz UHF Band
High-gain 435 MHz UHF collinear antenna using three 5/8-wave vertical sections with inductive phasing. Provides…
Antenna
DIY
VHF/UHF
VHF Collinear J-Pole : The DIY Super J-Pole Antenna
Build a VHF Super J-Pole (collinear J-pole) antenna by stacking two half-wave elements with a…
Antenna
DIY
VHF/UHF
5/4 Wave VHF Antenna for 145 MHz Using 450-Ohm Ladder Line
Build a 5/4-wave VHF antenna for 145 MHz using 450 Ω ladder line and a…
Antenna
DIY
Guide
VHF/UHF
3-Element Yagi antenna for 70cm UHF band
The 3-Element Yagi antenna is a fantastic project for any radio amateur looking for a…
Antenna
DIY
VHF/UHF
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…
Antenna
DIY
VHF/UHF
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,…
Antenna
DIY
VHF/UHF
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…
Antenna
DIY
Guide
VHF/UHF
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…
Circuits
DIY
VHF/UHF
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…