Garmin Portable Long-Range Antenna 

Portable Long-Range Antenna fits onto Garmin Astro or Alpha systems and can increase your tracking range by up to 3 miles!  This is a metal telescoping antenna that is light weight and portable.  The Garmin Portable Long-Range Antenna is a great asset to your GPS equipment giving you further tracking range when on foot.   **Note: The Metal telescopic antenna is fairly easy to break.