The Half Square Antenna: Low-Profile DX Wire for HF Bands

The Half Square Antenna: Low-Profile DX Wire for HF Bands: Build Half Square antenna — a stealthy, no-radial wire delivers ~3 dB gain over a dipole and matches directly to 50-ohm coax. Dimensions for HF bands included.

Build Your Own 6m Delta Loop Antenna: A Simple Weekend Project

Build Your Own 6m Delta Loop Antenna – A Simple Weekend Project

Looking to get active on the 6-meter “Magic Band” (50 MHz) without expensive commercial antennas? This DIY 6m Delta Loop antenna project shows how to build an efficient full-wave loop using simple materials like wire, PVC conduit, and coax. The design offers low noise performance and slightly better gain than a standard dipole, making it ideal for catching those exciting sporadic-E openings and long-distance contacts on 6 meters.

The guide explains the triangular loop construction, a 75-ohm quarter-wave matching section, and practical mounting tips, so you can build a lightweight antenna that works well with standard 50-ohm radio equipment.

🔧 Perfect for amateur radio operators who enjoy simple, effective, and low-cost antenna projects.

👉 Read the full article:
https://vu3dxr.in/build-your-own-6m-delta-loop-antenna-a-simple-weekend-project/

Low-Loss Feedline on a Budget: Building 450 to 600 Ohm DIY Ladder Line from Common Materials

Low-Loss Feedline on a Budget: Building 450 to 600 Ohm DIY Ladder Line from Common Materials: A complete technical guide to DIY ladder line for amateur radio. Build 450–600 ohm open-wire feedline cheaply, with less loss than coax on any HF band.

Shortened Inverted V Antenna for 80 Meters (3.700 MHz)

Shortened Inverted V Antenna for 80 Meters (3.700 MHz): Operating on the 80-meter band can be challenging for radio amateurs with limited horizontal space. A full-length 80-meter dipole requires nearly 40 meters of wire, which is often impossible to install in urban or restricted locations. To solve this, PY7DM Arimatea designed an efficient Shortened Inverted V Antenna for 3.700 MHz, using loading coils and precise wire lengths to compress the antenna into a compact, manageable size without sacrificing performance on the lower HF bands.