![Garmin GCV 20 Ultra HD Scanning Sonar Black Box [010-02055-10] Brand_Mastervolt Antenna Length: 4ft](https://cdn.shopify.com/s/files/1/0721/9652/2136/files/70793XL.jpg?v=1759349562)
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Antenna Length: 4ft
or looping to damage your line
A Class B AIS transponder requires a dedicated GPS antenna (all Class B units must have their own internal GPS and can't use an external feed for regulatory purposes) as well as a VHF antenna or suitable VHF-AIS antenna splitter
Yellow Easy Fit
Garmin GCV 20 Ultra HD Scanning Sonar Black Box [010-02055-10] Brand_Mastervolt Antenna Length: 4ftGCV 20 Ultra HD Scanning Sonar Black Box Add Ultra High Definition Scanning Sonar to Your Compatible Chartplotter The easy to install, networkable GCV 20 sonar black box allows you to redefine clarity and detail. Add any of the 3 GT34UHD transducer models to see stunningly clear Ultra High Definition ClearV and Ultra High Definition SideV scanning sonars with frequencies ranging from 0. 8 MHz (800 kHz) to 1. 2 MHz (1,200 kHz) to your compatible