Improving a 30 Year Old, 2 Meter, Four Element Beam. (cover story)
- Resource Type
- Article
- Authors
- Hopkins, A. J.
- Source
- QST; Nov2009, Vol. 93 Issue 11, p42-44, 3p, 3 Color Photographs, 7 Charts
- Subject
- ANTENNAS (Electronics)
ELECTRIC equipment
GAMMA (Electronic computer system)
COMPUTER software
CAPACITORS
COPPER
- Language
- ISSN
- 00334812
The article presents the author's insights on how to improve a 30-year-old 2 meter antenna with four gamma elements. It states that GAMMA is an MS-DOS based computer program which has the ability to compute gamma match length for the capacitor. It notes that the use of electrical tape as an insulator and copper toilet pipe and rod for gamma match installation are needed. It concludes that maintaining the 9 decibel and front-to-back ratio to 15.5 decibel across the band can improve the match.