Solarcon A-99 Vertical Antenna Resources and Guides

Find technical details, user reviews, and setup guides for the Solarcon A-99, a popular vertical antenna for HF and other bands.

David
Reviewed by • Senior RF Engineer & Technical Editor March 2026

The Solarcon A-99 is a popular vertical antenna, widely recognized for its use on the 11-meter CB band, but also frequently adapted by ham radio operators for various HF bands. Its design, often described as a half-wave over a quarter-wave with variable mutual inductance, allows for relatively easy setup and operation, making it a common choice for new operators or those with limited space for larger antenna projects.

Many hams experiment with the A-99, tuning it for bands like 10, 12, 15, 17, and even 20 meters, often with the aid of an antenna tuner. Operators share insights into its internal construction, discussing how its coaxial phasing sections contribute to its performance. Reviews and discussions, such as those found on eham.net, provide practical experiences and tips for optimizing the Solarcon A-99 for amateur radio activity, including its surprising utility on some VHF bands for local QSOs.

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