Sirio Starduster M400 CB/10M Base Antenna

The Sirio Starduster M400 CB/10M Base Antenna is a high-performance vertical antenna designed for reliable long-range communication on both CB (11-meter) and 10-meter amateur radio bands. Built with durability and efficiency in mind, it’s a popular choice for base station operators who want strong signal performance without complicated installation.

Standing approximately 5.5 meters (18 feet) tall, the Starduster M400 features a classic 1/4-wave ground plane design with four radial elements that provide excellent stability and optimized radiation efficiency. Its broadband capability allows it to operate effectively across the CB band and can be tuned for the 10-meter band, making it versatile for both casual and licensed operators.

Constructed from high-quality aluminum with weather-resistant components, the antenna is engineered to withstand harsh outdoor conditions such as wind, rain, and UV exposure. The SO-239 connector ensures easy integration with standard coaxial cables, while the adjustable tuning system allows users to fine-tune SWR for maximum performance.

Key Features:

• Covers CB (27 MHz) and tunable for 10-meter (28–29 MHz) operation
• 1/4-wave vertical ground plane design for strong omnidirectional coverage
• Durable aluminum construction for long-term outdoor use
• Adjustable radials for improved signal performance and tuning
• Easy installation with standard mounting options
• High efficiency with low SWR when properly tuned

Ideal for base stations, the Sirio Starduster M400 delivers dependable transmission and reception, making it a solid choice for CB enthusiasts and amateur radio operators alike.