Retractable Folding Antenna for Garmin Alpha or Astro 

This antenna is very compact and light weight.  It's an easy choice for an extra antenna to have in your truck or hunting pack.  This metal folding retractable antenna stretches from (7"- 22" BNC) (10"-38" SMA) and when folded sits at 2" above your Garmin.  It’s an easy addition to your Garmin tracking device to add a little more distance while staying compact and handy.   We offer the retractable folding antenna with a SMA connector (goes directly onto your Garmin) or a BNC connector (to go onto your quick connect handheld side).