![C-MAP 4D NA-D944 St. Lucie Inlet to New Orleans [M-NA-D944-MS] Marine Navigation & Instruments | Accessories Activate Spot-Lock from the wireless](https://cdn.shopify.com/s/files/1/0741/2914/6101/files/50313XL.jpg?v=1777658221)
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Activate Spot-Lock from the wireless remote or Humminbird fish finder
Because the transducer is installed almost flush with the hull
Antenna Dimension - 21" Enclosed Dome
The B275MWHW combines medium and high frequencies into a single thru-hull model
This ensures that no sonar signal is lost during transmit or receive
C-MAP 4D NA-D944 St. Lucie Inlet to New Orleans [M-NA-D944-MS] Marine Navigation & Instruments | Accessories Activate Spot-Lock from the wirelessC MAP 4D NA D944 St. Lucie Inlet to New Orleans The next evolution in navigation solutions. C MAP 4D adapts to your boating needs because it's the only digital chart that offers advanced features and lets you add data and services as they become available. Full 4D Content When you choose Full 4D content you will experience the latest in navigation data and technology such as: 3D Chart View The world has three dimensions. When you add the 4th dimension