Overview

The Garmin 010-02779-00 is a 4 kW GMR xHD3 open-array radar pedestal sold without the antenna array. It runs on 10 to 32 V DC, which fits typical 12 V and 24 V boat systems, and the pedestal measures 520 x 328 x 314 mm (20.5 x 12.9 x 12.4 in.) for clearance planning on a hardtop, arch, or mast platform.

This is the right part when you already have (or are sourcing) the matching GMR xHD3 open-array antenna and need the drive, transmitter, and mounting base as a pedestal-only package. Typical power draw is 18 W in standby and about 55 W while transmitting in normal mode, which helps when you are balancing loads on smaller electrical systems.

Key features

• 4 kW open-array radar pedestal for the Garmin GMR xHD3 system (antenna array not included).
• 10 to 32 V DC input to suit both 12 V and 24 V onboard power.
• Power draw: 18 W standby and 55 W typical while transmitting (normal mode).
• Pedestal footprint: 520 x 328 x 314 mm (20.5 x 12.9 x 12.4 in.) to help confirm mounting clearance.
• Includes 15 m (49.21 ft) power and 15 m (49.21 ft) network cabling for common helm-to-mast or helm-to-arch runs.
• In-line 15 A fuse is integrated in the power cable for the radar feed.
• Mounting hardware kit and mounting template are included for clean alignment and drilling.

What’s included

• GMR xHD3 4 kW pedestal
• Power cable (15 m / 49.21 ft) with in-line 15 A fuse
• Network cable (15 m / 49.21 ft)
• Mounting hardware kit and mounting template
• Installation instructions

Compatibility and fit

This pedestal is meant to be paired with a GMR xHD3 open-array antenna and connected to a compatible Garmin chartplotter for radar control and setup. If your boat is built around older Garmin Marine Network hardware, confirm how the radar network cable will mate to your existing ports, since some installations use an adapter to interface between different Garmin network connector types.

Installation and setup

Mount the pedestal on a flat, rigid surface that stays aligned with the boat’s bow-stern axis, using the included template to locate holes accurately. If you are routing cables through the mounting surface, plan the pass-through and seal all penetrations properly so water cannot track into the core or into the cabin. After powering up, the chartplotter prompts you to confirm the installed antenna size so the radar picture and rotation behavior match the array on the pedestal.

Electrical and network integration

Power the unit from a clean 10 to 32 V DC supply and keep the power connection close to the battery source when possible. If you must extend the power run, use the correct wire gauge for the distance and make water-resistant splices with proper crimps and heat-shrink. Plan for a dedicated RF water-ground connection from the pedestal grounding point to the vessel’s water ground, and route network and power cabling away from RF-heavy runs like VHF and SSB lines to reduce interference.

Who this fits on board

This makes sense for owners replacing a damaged or corroded xHD3 pedestal while keeping an existing open-array antenna, or for builds where the antenna is being sourced separately from the pedestal. It is also a practical choice on boats that run either 12 V or 24 V electrical systems and need the flexibility of a wide DC input range.