Build a compact 4-meter vertical antenna for the 80-meter band. This DIY guide features a high-efficiency loading coil design and a top-hat capacity spoke system to make 80m operation possible in small yards and restricted spaces
Tag: Vertical Antenna
DIY HF vertical antenna projects including shortened 80 m/40 m verticals, quarter-wave portable designs, loading-coil techniques, and radial systems for compact amateur radio installations
Tree Mounted Quarter-Wave Vertical Antenna
Field-expedient quarter-wave vertical antenna suspended from a tree using only two sloping radials. Compact HF design provides low-angle radiation, near-50 Ω match, and portable deployment for emergency and outdoor ham radio operation.
Shortened Vertical Antenna for the 80-Meter Band (UR0GT Design)
Compact 4 m shortened vertical antenna for the 80 m band using a 64 µH loading coil and LC base matching network. UR0GT design enables efficient 3.65 MHz operation in small spaces with full-size radial system for strong HF performance.