GRA-AT330T(C) Motorized HF Screwdriver Antenna
Take full control of your antenna system with the GRA-AT330T(C) MK2.
Designed for serious HF operators, this motorized screwdriver antenna delivers precision tuning, multi-band flexibility, and rugged IP68 durability for real-world use.
Designed for serious HF operators, this motorized screwdriver antenna delivers precision tuning, multi-band flexibility, and rugged IP68 durability for real-world use.
Control Your Antenna. Not Your Radio.
The GRA-AT330T(C) MK2 redefines how HF operators interact with their antenna system.
Unlike traditional radio-dependent tuning solutions, this motorized screwdriver antenna puts full control directly in your hands, delivering consistent and predictable performance across multiple bands.
Unlike traditional radio-dependent tuning solutions, this motorized screwdriver antenna puts full control directly in your hands, delivering consistent and predictable performance across multiple bands.
Precision Tuning Without Limitations
With direct coil control and a responsive motorized system, you can fine-tune your antenna with accuracy.
The built-in controller allows users to adjust coil position precisely, ensuring optimal SWR and signal performance across a wide frequency range.
The built-in controller allows users to adjust coil position precisely, ensuring optimal SWR and signal performance across a wide frequency range.
10 Memory Presets for Instant Operation
Save and recall your favorite frequency positions instantly.
No need to retune every time you change bands.
Designed for efficiency in real operating conditions, especially during mobile, POTA, and field deployments.
No need to retune every time you change bands.
Designed for efficiency in real operating conditions, especially during mobile, POTA, and field deployments.
Wide Frequency Coverage for Multi-Band Operation
Supports a broad frequency range from 3.5 MHz to 50 MHz when paired with appropriate whip configurations.
From 80 meters to 6 meters, this antenna adapts to your operating needs without requiring complex setups.
From 80 meters to 6 meters, this antenna adapts to your operating needs without requiring complex setups.
Built for Real-World Environments
Engineered for durability, the GRA-AT330T(C) features IP68-rated waterproof construction.
Whether operating in rain, dust, or rugged outdoor conditions, the antenna maintains stable performance and reliability.
Whether operating in rain, dust, or rugged outdoor conditions, the antenna maintains stable performance and reliability.
Flexible Connection Options
Choose the interface that fits your setup:
GRA-AT330T: UHF (PL-259) base
GRA-AT330TC: 3/8-24 threaded mount
GRA-AT330TC: 3/8-24 threaded mount
Designed for compatibility with a wide range of mounts and installations, from mobile vehicles to portable stations.
Designed for Mobile, POTA, and HOA Use
This antenna is optimized for real-world scenarios where space, efficiency, and ease of use matter.
Ideal for:
Ideal for:
Mobile HF operation
POTA field activations
HOA-restricted environments
POTA field activations
HOA-restricted environments
One antenna. Every environment.
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