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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 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. Confirm that the cable length is adequate and route the
cable from the Receiver to the Fishfinder control head. If
holes are required to route the cable, they must be 3/4” (19
mm) to allow for the cable connector. Secure the NMEA
pigtail with electrical tape.
3. The GPS Receiver has two wire routing notches. Use the cable notch closest to the
intended cable route.
4. With the cable routed, position the GPS Receiver in the planned mounting location
and mark the mounting holes with a pencil or awl.
5. Move the GPS Receiver to the side and drill the two 5/32” (4 mm) pilot holes.
NOTE: Apply marine-grade sillicone caulk or sealant to both screw and drilled holes as needed to
protect your boat from water damage.
6. Align the screw holes of the GPS Receiver over the pilot screw holes, referring to the
illustration, and attach with the #6 - 3/4 Phillips head screws. Hand tighten only.
Finish Routing the Cable and Check Operation
Follow these steps to finish routing the GPS Receiver cable between the Fishfinder control
head and the Receiver:
1. Secure the cable along its path to the Fishfinder control head as needed, using
cable ties.
2. Plug the GPS Receiver cable to the Fishfinder control head per the instructions detailed
in Connecting a GR16 GPS Receiver to the Fishfinder.
6
No Access Under
Mounting Location
NMEA
Pigtail
Taped
NMEA
Pigtail
Cable Out
NMEA Pigtail Taped
to Cable