Under-deck-mounting the gps 17x antenna, Wiring and cables – Garmin 3000 User Manual
Page 5

GPSMAP 3000 Series Installation Instructions
4.	 Thread	the	pole-mount	adapter	onto	the	pole.	Do	not	overtighten	the	adapter.
5.	 Route	the	GPS	17x	cable	through	the	pole	and	connect	it	to	the	GPS	17x	antenna.
6.	 Place	the	GPS	17x	antenna	on	the	pole-mount	adapter	
➊
and twist it clockwise to lock it in place
➋
.
7. Secure the antenna to the adapter with the included M3 set screw
➌
.
8.	 (Optional)	With	the	GPS	17x	installed	on	the	pole	mount,	fill	the	vertical	cable	slot	with	a	marine	sealant.
9.	 Route	the	GPS	17x	cable	away	from	sources	of	electronic	interference,	and	connect	it	to	power	and	to	your	GPSMAP	3000	series	
chartplotter (
).
Under-deck-mounting the GPS 17x Antenna
The GPS 17x can be mounted under a fiberglass surface with the included adhesive pads. The GPS 17x will not acquire satellite signals through
metal—you can only use the under-deck mount under a fiberglass surface.
1.	 Determine	the	location	on	the	fiberglass	surface	where	you	want	to	mount	the	GPS	17x.
2.	 Place	the	adhesive	pads	on	the	under-deck	mounting	bracket.
	 There	are	holes	in	the	under-deck	mounting	bracket	that	can	be	used	to	secure	the	
under-deck mount to the mounting surface with screws. Garmin does not recommend
attaching the under-deck mounting bracket to the surface with screws, because of the
likelihood that screws will extend beyond the top of the mounting surface. If you choose
to use screws, do so with extreme care.
3.	 Place	the	GPS	17x	in	the	under-deck	mounting	bracket.
4.	 Adhere	the	under-deck	mounting	bracket	to	the	mounting	surface.
5.	 Connect	the	GPS	17x	cable	cable	to	the	GPS	17x.	
6.	 Route	the	GPS	17x	cable	away	from	sources	of	electronic	interference,	and	connect	it	to	power	and	to	your	GPSMAP	3000	series	
chartplotter (
).
Wiring and Cables
The GPSMAP 3000 series chartplotter comes with a Power/data cable, and a GPS 17x cable. Additionally, the GPSMAP 3006, 3206, 3010, and
3210 chartplotters come with a 17-pin Marine Video cable. Optional Garmin Marine Network components use specialized Garmin Network
cables. Depending on the installation, it may be necessary to drill holes to route the connector end of these cables. 
Garmin rubber grommets are provided to cover these holes for a finished look.
You may not need the grommets in some installations. The grommets do NOT create a 
waterproof seal. Apply a marine sealant around the grommet and cable after installation.
Be sure to test the system before installing and sealing the grommets. Purchase additional
.
Tools
Drill 
1 
1
/
4
in. (31.7 mm) paddle drill bit or hole saw
Utility knife
Marine sealant (optional)
To install the cable grommet:
1. Mark the location where you want to route the cable (Power/data, GPS 17x, Marine Video, or
Marine Network.)
2. Using a 1
1
/
4
in. (31.7 mm) paddle drill bit or hole saw, drill the installation hole.
3. Refer to the diagram for trimming instructions. Carefully trim the cable hole in the grommet, as
needed.
4.	 Route	the	cable	to	the	chartplotter,	and	test	the	system.
5.	 Spread	the	grommet	apart	at	the	split	and	place	it	around	the	cable.
6.	 Firmly	push	the	grommet	into	the	installation	hole	until	it	is	seated.	Apply	marine	sealant,	as	needed,	to	weatherproof	the	cable.
•
•
•
•
GPS 17x
antenna
Under-deck-
mounting bracket
Mounting
surface
Adhesive pads
GPS 17x
antenna
Under-deck-
mounting bracket
Mounting
surface
Adhesive pads
Split
Use this hole
(no trim) for the
power, NMEA,
Marine Network,
or
GPS 17x cable.
Trim to this line for
the Marine Video
cable.
Split
Use this hole
(no trim) for the
power, NMEA,
Marine Network,
or
GPS 17x cable.
Trim to this line for
the Marine Video
cable.
