3.5–50MHz Programmable HF Mobile Antenna GRA-AT330T(C), Motorized Screwdriver System for Amateur Radio Support – 3/8-24 Connecto

• 1. Wide HF Coverage for Real Operation Covers 3.5–50 MHz with adjustable coil system. Compatible with multiple bands using a single antenna setup.
• 2. One-Touch Memory Tuning System Save up to 10 positions. Press once to view, press again to move automatically. Fast band switching in real operation.
• 3. Motorized Precision Control 12V powered coil adjustment with fine, continuous, and automatic movement modes for accurate tuning.
• 4. Built for Portable and Mobile Use Ideal for POTA, field day, vehicle mounting, and HOA environments. Compact, deploy in minutes.
• 5.Rugged Outdoor Performance IP68-rated antenna body and connectors. Includes 5-meter control cable for flexible installation.

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Take Full Control of Your Antenna System. Break Free from Radio Limitations.

Take full control of your antenna without relying on radio-based tuning systems. The GRA-AT330T(C) puts adjustment directly in your hands, giving you consistent performance across bands. No lock-in, no limitations, just total flexibility wherever you operate.

Why Operator Control Changes Everything

Standalone Control System Dedicated controller enables direct tuning without relying on radio integration.	Radio Integrated Control Tuning depends on compatible Yaesu radios and system communication.	Basic Motor Control Uses simple up and down motor control without advanced system logic.
Works Across Radio Brands Compatible with multiple HF radios without system restrictions.	Limited Radio Compatibility Optimized mainly for Yaesu radios with supported interfaces.	Broad Compatibility Works with many radios but lacks integrated control features.
Built-in Memory Presets Store and recall multiple tuning positions instantly.	Radio-Based Memory Logic Memory depends on radio system rather than the antenna itself.	Optional Memory Controller Advanced functions require optional external control unit.
Fast and Repeatable Tuning Precise coil control with consistent repeatable results.	System-Dependent Tuning Speed Performance varies based on radio response and integration.	Manual Fine Adjustment Needed Requires operator monitoring for optimal tuning accuracy.

Built Around the Operator Not the System

Engineered for Real Control

Every feature is designed for control and efficiency. Direct coil adjustment, memory presets, and multi band flexibility allow you to adapt instantly. This is not automation. This is precision driven by the operator.

One Antenna. Every Environment. From Field Operation to Everyday Use.

Operate in national parks, residential environments, or rugged terrain. GRA-AT330T(C) adapts to your setup without limitations. Portable, flexible, and built for real world deployment.

IP68 Protection You Can Rely On

Built for Harsh Outdoor Conditions

Sealed against water and dust, the IP68 rated design protects critical internal components. From heavy rain to dusty trails, your antenna remains stable, reliable, and ready for continuous operation.

One System for Multi Band Operation

Wide Frequency Coverage from 3.5 to 50 MHz

Cover a wide range of HF frequencies with continuous motorized tuning. Easily adapt across bands without changing antennas. Designed for flexible, efficient operation in dynamic conditions.