Humminbird GR16 - Manual (Page 10)

NOTE: Leave the NMEA pigtail secured to the cable unless needed in
order to make it easier to remove the GPS Receiver.
4. Route GPS Receiver cable through the stem and continue with
the planned cable route.
5. Attach the GPS Receiver to its base using the included #6 - 1/4”
screws. Hand tighten only.
Access Under Mounting Location
Follow these steps to deck mount the GPS receiver when you can
route the cable down through the mounting surface:
1. Determine the best location, then test route the 20’ (6 m) cable
from the Fishfinder control head to the planned mounting
location of the GPS Receiver.
NOTE: 10’ extension cables may be purchased from Humminbird® if
your planned cable route exceeds 20’ (6 m). Maximum cable length,
including extension cables, should not exceed 50’ (16 m). Visit our
website at www.humminbird.com, or call our Customer Resource
Center at 1-800-633-1468 to purchase extension cables.
2. Mark the mounting location and drill a 3/4” (19 mm) hole for the cable and cable
connector. Secure the NMEA pigtail to the cable with electrical tape. Route the cable.
3. Cover the cable hole with the GPS Receiver. Make sure the Receiver is flush against the
surface and 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” (4 mm) bit.
NOTE: Apply marine-grade silicone caulk or sealant to both screw and drilled holes as needed to
protect your boat from water damage.
5. Align the GPS Receiver’s screw holes over the pilot screw holes and attach with the
#6 - 3/4” Phillips head screws. Hand tighten only.
NOTE: If the mounting surface is thin or made of a light-weight material, you may need to add
reinforcing material below the mounting surface in order to support the GPS Receiver.
5
Access Under
Mounting Location
Attaching the Receiver to
the Base, Making Sure
Cable is Not Pinched
Cable
Route
Stem
Stop
#6 - 1/4” Mounting
Screws