Humminbird Matrix-antenna Owner's Manual

If you have… Then use:

An existing antenna stem with standard 1” – 14 thread Stem Mount (Existing Stem)
Under location access to mounting deck Deck Mount
No access under mounting location Deck Mount (Cable Side -

No Access Underneath)

Stem Mounting with Existing 1" - 14 Thread Stem

Follow these steps to stem mount the GPS receiver:

1. If you have an Existing stem for mounting the GPS
receiver, precede to step 2. Determine the best
location to mount your GPS receiver. You should also
be within 20' feet of the GPS display as routed through
your boat's wiring channels. Preplan and test this
routing before any drilling or cutting of your boat
surfaces. If you have purchased hardware to stem
mount your GPS receiver, follow the instructions
included with that hardware to mount the stem.

2. If you have easy access to the top area of the stem,
screw on the receiver base to the stem first. This adds
protection to the cable when pulling it through the pipe
stem. In addition to this, de-burr the pipe edges to
reduce cable abrasion.

2a.

If you do not have easy access to the top area of the
stem, assemble the receiver and base first. Attach the
GPS receiver to its base using the #6 -

¹⁄₄

" screws (Figure

2). De-burr the pipe edges to reduce cable abrasion.

3. Use electrical tape to secure the DGPS pigtail to the
cable as shown (Figure 3).

4. Route the GPS receiver’s cable through the stem and
continue with the planned route decided on in step 1.

5. Attach the GPS receiver to its base using the #6 -

¹⁄₄

" screws.

5a. After routing the cable to the control head, screw the receiver

assembly on to the stem.

Note: Leave the DGPS pigtail secured to the cable unless needed. This
will make removing the receiver easier.

To optimize performance of the GPS receiver, mount it in an area that has full exposure to
the sky. The effective area of reception is 10° above the horizon. Different circumstances
determine the mounting method appropriate for your GPS receiver.

Matrix GPS Receiver Installation Guide

531210-1_A

Receiver

Receiver

Base

Stem

#6 -

¹⁄₄

"

mounting

screws

Figure 1

Figure 2

Figure 3

WARNING:

Disassembly and repair of this electronic unit should only be performed by
authorized service personnel. Any modification of the serial number or attempt to repair the
original equipment or accessories by unauthorized individuals will void the warranty. Handling
and/or opening this unit may result in exposure to lead, in the form of solder.
WARNING: This product contains lead, a chemical known to the State of
California to cause cancer and birth defects and other reproductive harm.

DGPS pigtail

cable out

DGPS pigtail taped

Under Location Access

Follow these steps to deck mount the GPS receiver when
routing the cable down through the mounting location:

1. Determine the best location, then test route the 20'
(6 m) cable from mounting location to the control head .

2. Mark the mounting location and drill a

³⁄₄

" (19 mm)

hole for the cable and cable plug.

3. With the cable routed, center the receiver over the cable hole. Mark the two
mounting holes with a pencil or awl.

4. Move the receiver to the side and drill two pilot holes using a

⁵⁄₃₂

" (3.6mm) bit.

5. Align the GPS receiver's screw holes over the pilot screw holes (Figure 4)
and attach with the #6 -

³⁄₄

" Phillips head screws. Hand tighten only.

Note: If the mounting surface is thin and made of a lighter material, a backing
material may be needed below the mounting surface.

No Access Under Mounting Location

Follow these steps to deck mount the GPS receiver in a situation where you
must route the cable to the side because there is no space for a cable
underneath the mounting location.

1. Determine the best location, then test route the 20'
(6 m) cable from the mounting location to control head.

2. After confirming the cable length is good, drill

³⁄₄

"
(19mm) holes as needed to route the cable from the
receiver to the control head. Secure the DGPS pigtail
with electrical tape, (Figure 3) and route the cable.

3. If the GPS receiver is visible when mounted you may wish to orient the logo for
aesthetic reasons. The physical orientation should be level with the horizon and
high enough to view 360° of the sky unobstructed.

4. The GPS receiver has two wire routing notches. Use the cable notch closest to
the intended cable route.

5. With the cable routed, position the GPS receiver in the planned mounting
location and mark the mounting holes with a pencil or awl.

6. Move the GPS receiver to the side and drill the two

⁵⁄₃₂

" (4mm) pilot holes.

7. Align the GPS receiver's screw holes over the pilot screw holes (Figure 5)

and attach with the #6 -

³⁄₄

" Phillips head screws. Hand tighten.

Finish Routing the Cable and Check operation

1. Secure the cable along its path to the control head as needed with cable ties.

2. Plug in the GPS receiver cable to the control head, power on the control head and
follow your operation sheet for the control head to confirm a good installation.

Figure 4

Figure 5

Humminbird •108 Maple Lane • Eufaula, Al • 36027

www.humminbird.com •334-687-0503