The G4ZU Spider Beam or Skypper
- This 3 elements wire Yagi comes along in a great variety of names. On the 11 meter is calle Skypper due to the manufacturer Alex 1SD019
On Ham bands is called Spider beam or G4ZU.
Portable HF antennas
- Excel sheet containing technical comparisons of commercial HF portable antennas compiled by ON4SKY. Includes pictures, manufacturer, db gain, band coverage, F/B ratio, price, weight and dimensions.