Garmin Gxm 51, 190-01030-02 User Manual

GXM™ 51 Installation Instructions

The Garmin GXM 51 XM® antenna provides XM WX Satellite Weather® information and XM Satellite Radio® for your existing NMEA 2000® network. If you do not have an existing NMEA 2000 network on your boat, you will need to install one. For more information about NMEA 2000, visit www.garmin.com.

The GXM 51 antenna must be properly installed according to the following instructions. You need the appropriate fasteners, tools, and mounts listed in each section. These items are available at most marine dealers. Always wear safety goggles, ear protection, and a dust mask when drilling, cutting, or sanding. When drilling or cutting, always check what is on the opposite side of the surface.

Contact Garmin Product Support if you have any questions while installing or using your GXM 51. In the USA, go to www.garmin.com/support, or contact Garmin USA by phone at (913) 397-8200 or (800) 800-1020.

See the Important Safety and Product Information guide in the product box for product warnings and other

important information.

Product Registration

Help us better support you by completing our online registration at www.garmin.com

/registration/.

For future reference, write the serial number assigned to your GXM 51 in the space provided. It is located on a sticker on the back of the device.

Serial number

In addition to the device serial number, unique ID numbers are associated with your GXM 51. XM Satellite Radio uses these ID numbers to activate and deactivate your XM weather and XM audio. To locate the ID numbers on a Garmin NMEA 2000-compliant chartplotter, select

Congure > System > System Information.

For future reference, write the XM WX Weather ID and XM Radio ID assigned to your GXM 51 in the spaces provided.

XM WX Weather ID

XM Radio ID

November 2009 190-01030-02 Rev. D Printed in Taiwan

Packing List, Accessories, and Tools Needed

SS BARNETT

Before installing your unit, conrm that your package includes the following items. If any parts

are missing, contact your Garmin dealer immediately.

Standard Package

GXM 51 Antenna

•

Surface-mount bracket

•

Pole-mount bracket

•

Under-deck mount bracket

•

Mounting hardware (screws and adhesive

• pads)

NMEA 2000 T-connector

•

NMEA 2000/audio cable 19 ft., 8 in. (6 m)

•

Audio adapter cable 1 ft. (30.5 cm)

Installation instructions

•

Optional Accessories

Additional NMEA 2000 network

•

Tools Needed

Drill

•

Drill bits—1/8 in. (3 mm) and 3/4 in.

• (19 mm)

•

Hole saw, 1 in. (25 mm)—surface-mount cable hole

Screwdriver—surface-mount screws

•

Pencil (to mark surface-mount pilot holes)

•

Countersink bit (when mounting on

•

berglass)

Marine sealant (for some mounting

• options)

components

Audio adapter cable extensions

•

Step 1: Mount the GXM 51 Antenna

You can surface mount the GXM 51 antenna, attach it to a standard 1 in. OD pipe-threaded-pole

marine mount (14 threads-per-inch—not included), or even install the antenna under berglass.

Select a suitable location for the GXM 51 antenna on your boat. To ensure the best reception, mount the GXM 51 antenna in a

EMI

Better

Best

Good

Better

location that has a clear, unobstructed view of

EMI (Electromagnetic Interference)

the sky in all directions.

Avoid mounting the GXM 51 antenna

•

EMI (Electromagnetic Interference)

from engine components

where it is shaded by the superstructure of

Above - best

the boat, a radome antenna, or a mast.

•

On a sailboat, avoid mounting the GXM 51 antenna high on the mast.

•

The GXM 51 antenna provides more-stable reception when located nearer to water level.

Mount the GXM 51 antenna at least 3.3 ft. (1 m) away from (preferably above) the

•

Above - best

3 ft.

Below - OK

Radar

GXM 51 Placement Considerations

VHF Radio Antenna

3 ft.

(1 m)

path of any radar beam or a VHF radio antenna.

Temporarily secure the antenna in the preferred mounting location and test it for correct operation. If you experience interference with other electronics, try a different location. After verifying correct operation, permanently mount the antenna.

GXM 51 Installation Instructions

Surface-mounting the GXM 51 Antenna

1. Use the surface-mount bracket as your mounting template.

Use a pencil to mark the three screw locations on the surface and to trace the cable hole

• in the center of the bracket.

Set the surface-mount bracket aside. Do not drill through the surface-mount bracket.

•

2. Drill three 1/8 in. (3 mm) pilot holes.

Note: If you are mounting the GXM 51 on berglass, it is recommended to use a countersink

bit to drill a clearance counterbore through the top gelcoat layer (but no deeper). This will help to avoid cracking in the gelcoat layer when the screws are tightened.

3. Use a 1 in. (25 mm) hole saw to cut the cable hole in the center.

4. Use the included M4 screws to attach

➋

the surface-mount bracket to the mounting surface.

5. Route the NMEA 2000/audio cable through the 1 in. (25 mm) cable hole and connect it to the GXM 51.

6. Make sure the large gasket is in place on the bottom of the GXM 51 antenna, place the antenna on the surface-mount bracket ➊, and twist it clockwise to lock it in place ➋.

7. Secure the antenna to the mounting bracket with the included M3 set screw ➌.

8. Route the NMEA 2000/audio cable away from sources of electronic interference, and connect it to your NMEA 2000 network and to the audio input of your stereo receiver (see page 5).

➊

Surface-mount

bracket

➋

GXM 51

GXM 51 antenna

antenna

➌

Rubber

gasket

Mounting

surface

Pole Mounting the GXM 51 Antenna

With the pole-mount adapter attached to the GXM 51, you can install the GXM 51 on a standard 1 in. OD pipe-threaded-pole marine mount (14 threads per inch—not included). You can route the NMEA 2000/audio cable either through the pole or outside the pole.

To mount the GXM 51 with the cable routed outside the pole:

1. Route the NMEA 2000/audio cable through the pole-mount adapter, and place the cable in the vertical slot along the base of the pole-mount adapter.

2. Thread the pole-mount adapter onto a standard 1 in. OD pipe-threaded-pole marine mount (14 threads per inch—not included). Do not overtighten the adapter.

3. Connect the NMEA 2000/audio cable to the GXM 51 antenna.

4. Place the GXM 51 antenna on the pole-mount adapter ➊ and twist it clockwise to lock it in place ➋.

5. Secure the antenna to the adapter with the included M3 set screw ➌.

6. (Optional) With the GXM 51 installed on the

pole mount, ll the remaining gap in the vertical

cable slot with a marine sealant (not included).

7. Attach the marine mount to the boat if it is not already attached.

8. Route the NMEA 2000/audio cable away from sources of electronic interference, and connect it to your NMEA 2000 network and to the audio input of your stereo receiver (see page 5).

➊

Pole-mount

Vertical cable

adapter

slot

➌

➋

GXM 51

GXM 51 antenna

antenna

GXM 51 Installation Instructions

+ 7 hidden pages