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Alpha Antenna - VHF UHF HF Base Portable Mobile
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Collar Clinic: Extended Range Antenna for Garmin Alpha/Astro or PRO Trashbreaker
Amazon.com: Alpha Defense Round Style Antenna 50 Cal Round Shaped Aluminum Rust Resistant 5.5" Jeep Wrangler + Most Trucks Radio Antenna + Face Shield Alpha Defense Set of 2 (Blue) : Electronics