Enhance your GPS device's performance with this upgraded high-gain telescopic antenna, designed to significantly boost signal range and stability. Crafted from premium metal materials, this durable antenna ensures long-lasting use and reliable connectivity for your Garmin handheld GPS units. Its foldable and extendable design offers convenience and portability, making it an essential accessory for outdoor navigation and tracking. Key Features: · High-Gain Performance: Increases the signal range for Garmin Alpha 100, Alpha 50, Astro 320, 220, and 430 handheld GPS devices, providing improved tracking accuracy and reliability. · Durable Metal Construction: Made from high-quality metal, this antenna is built to withstand extended use and harsh outdoor conditions. · Foldable & Extendable Design: Collapses to a compact 25cm (9.9in) for easy transport and storage, and extends up to 108cm (42.5in) to maximize signal reception. · Direct SMA Connector: Features a standard SMA direct connection compatible with Garmin Astro and Alpha series, allowing for quick and hassle-free installation. · Wide Frequency Range: Operates effectively within 136-174 MHz, ensuring optimal performance across supported GPS frequencies. Specifications: · Item Type: Telescopic Antenna · Material: Metal · Folded Size: Approx. 25cm / 9.9in · Extended Size: Approx. 108cm / 42.5in · Frequency Range: 136-174 MHz Package Includes: · 1 x Telescopic High-Gain Antenna Upgrade your Garmin handheld GPS with this high-quality telescopic antenna to enjoy stronger, more stable signals and enhanced tracking capabilities during your outdoor adventures.