Hunter Outdoor Supply
HOS Extended Triple Magnet Base With Ground Plane
HOS Extended Triple Magnet Base With Ground Plane
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HOS Extended Reach Triple Magnet Base With Ground Plane
The Extended Triple Magnet Base is a high-performance mobile antenna mounting system designed to boost range for Garmin Alpha/Astro dog tracking handhelds.
🔧 What It Is
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A vehicle-mount ground plane antenna system
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Uses three powerful magnets for secure roof mounting
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Built to improve handheld tracking reception compared to factory antennas
⭐ Key Features
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Triple magnet hold: Stays firmly attached even on rough terrain and at highway speeds.
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Ground plane design: Enhances signal efficiency and range in challenging environments.
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Extended-reach capability: Whip antenna setup helps track dogs at longer distances.
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Vehicle friendly: Typically includes rubber protection and long coax for flexible mounting.
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Garmin compatible: Works with Alpha 10/100/200/300 and Astro units.
📏 Typical Specs (varies by bundle)
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Vertical whip: ~27"–48" options
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Ground radials: usually four ~21" rods
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Coax cable: ~18–20 ft
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Mount: triple magnet base
👍 Best For
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Hound hunters needing more range
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Truck/UTV roof mounting
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Areas with hills, timber, or poor handheld reception
⚠️ Quick Tips
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Works best centered on a metal roof (true ground plane)
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Clean surface before mounting to protect paint
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Pair with a quick-connect adapter for easy handheld hookup
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