Garmin Extended Range Antenna f/Astro 320 [010-10856-30] Communication | Antenna Mounts & Accessories plus auto function for the

plus auto function for the most reliable setting and best performance

The closer the contour lines

Works just as effectively with all-chain rodes for those who desire the added security and holding power of an all-chain anchor system

or to boost placement of an antenna above on-board obstructions

Garmin Extended Range Antenna f/Astro 320 [010-10856-30] Communication | Antenna Mounts & Accessories plus auto function for theExtended Range Antenna Part #: 010 10856 30 New Extended Range Antenna for your Astro 320. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.