Extra Long 49" whip extends your tracking range even further.  This antenna magnet is larger and more powerful.  Using an NMO mount antenna cut to the frequency that the Garmin Alpha and Astro uses will give you the best range.

Connector:  Connector is Compatible to be used with the Garmin Alpha and Astro.   No adapters are needed!

14Ft of Cable.

If you are looking for an antenna that can be used for both Marine and the Alpha or Astro, Please select the PL-259 connector with the adapter which will allow you to connect it to the Astro.

Choose to add a Spring for additional flexibility to minimize the chance of your antenna whip snapping