GRA-CFS40H 7.1MHz Center-Loaded Carbon Fiber HF Antenna
The Power of Center-Loading Design
Unlike budget antennas using base loading, the GRA-CFS40H utilizes an advanced center-loaded structure for maximum performance on the 40m band:
- 50% Higher Efficiency: Moves the high-current region upward, allowing both sections to radiate effectively for a significant signal boost.
- Superior Stability: Offers wider bandwidth and maintains stable SWR during vehicle movement, regardless of mounting environment.
- Premium Construction: Crafted with high-conductivity continuous woven carbon fiber for ultimate strength and reliability.
Full Description
Enhanced Radiation for 40-Meter Band
At lower HF frequencies like 7.1MHz, antenna efficiency is critical. Most mobile antennas suffer from poor radiation because their coils are placed at the base. The GRA-CFS40H solves this by positioning the loading coil in the center, ensuring the upper section remains an active radiator. This design moves the performance closer to a full-size antenna, delivering stronger field strength for your long-distance contacts.
Military-Grade Continuous Carbon Fiber
Our antenna masts are produced through high-temperature carbonization, creating a continuous fiber structure.
- Excellent Conductivity: Unlike cheap powder-mixed alternatives, our woven carbon cloth ensures consistent conductive contact throughout the entire mast.
- Lightweight & High Strength: Weighing only 418g, it significantly reduces the stress on your vehicle mount while remaining rigid enough to handle high-speed wind resistance.
- Precision Fit: Every section is precision-engineered to ensure structural integrity and electrical continuity.
- Technical Specifications
- Model: GRA-CFS40H
- Design: Center Loading Coil
- Material: High-Strength Continuous Woven Carbon Fiber
- Frequency: 7.1MHz (40m Band)
- VSWR: < 1.5
- Power Handling: 120W
- Impedance: 50Ω
- Weight: 418g
- Length: 197.5cm
- Connector: M-Type (PL-259)
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