Overview

The Garmin 010-12881-06 is an external passive GPS and Iridium antenna with an adapter cable for moving satellite reception to a better spot while your handheld stays where you can reach it.

It uses a magnetic base for quick placement on a steel surface and includes a 1.5 m (4.9 ft) antenna lead plus an approximately 0.2 m (8 in) adapter (dongle) to make the final connection at the device. Putting the antenna outside with a clearer sky view can help when the handheld is under a hardtop, inside the cabin, or in a pilothouse.

This kit is intended for compatible Garmin Montana inReach handhelds, including Montana 700i and Montana 750i.

Key features

• External passive GPS and Iridium antenna for relocating reception to an outdoor mounting spot
• Magnetic base for placement on ferrous metal surfaces
• 1.5 m (4.9 ft) antenna cable plus approximately 0.2 m (8 in) adapter cable
• Compatible with Garmin Montana 700i and Montana 750i handhelds
• Useful when the handheld is used below deck, under a canopy, or behind tinted glass

What's included

• External GPS/Iridium antenna with magnetic base
• 1.5 m antenna cable
• Approximately 0.2 m adapter cable (dongle)

Installation and setup

Mount the antenna where it can see as much sky as possible and where it will not be shaded by antennas, radar, or a bimini frame. The magnetic mount works only on clean, flat steel; on fiberglass or aluminum, plan on a secure mounting method and add strain relief so the cable is not carrying the load.

Route the cable away from sharp edges and moving hardware, leave a drip loop before any entry point, and seal deck penetrations so spray and washdowns cannot follow the cable inside.

Compatibility and fit

This is a device-specific external GPS/Iridium antenna kit. It is not a general-purpose marine GPS antenna lead, and it is not used for NMEA networks or chartplotter antenna inputs.

Maintenance and care

Rinse salt residue off the antenna and cable after heavy spray, and check for chafe where the cable is tied down. When stowing, coil the cable loosely and avoid tight bends near the connectors.