GDL 40 Installation Instructions
3
7. Use the three M4 screws
➊
to secure
the surface-mount bracket
➋
to the
mounting surface
➌
.
➏
➍
➎
➌
➊
➋
➐
8. Make sure the large gasket is in place on
the bottom of the antenna
➍
.
9. Route a NMEA 2000 drop cable through
the center hole, and connect it to the
antenna
➎
.
10. If you are using an external cellular
), route the antenna
cable through the center hole, and
connect it to the GDL 40 antenna
➏
.
11. Place the antenna on the surface-mount
bracket, and twist it clockwise to lock it
in place.
12. Secure the antenna to the mounting
bracket with the M3 set screw
➐
.
13. Route the NMEA 2000 drop cable away
from sources of electronic interference.
14. Connect the antenna to your NMEA
).
Mounting the Antenna on a Pole
Using the pole-mount bracket, you can
install the antenna on a standard marine pole
mount (not included). A standard threaded
marine pole mount has the following
characteristics:
• An outer diameter (OD) of 1 inch
• Threads that measure 14 threads per inch
Note:
An external cellular antenna is not
compatible with the pole-mount bracket
(
Mounting the Antenna with the Cable
Routed outside of the Pole
1. Select a mounting location for the
antenna, and verify correct operation at
the mounting location (
2. Route a NMEA 2000 drop cable through
the pole-mount bracket
➊
.
➌
➊
➋
➍
3. Place the cable in the vertical slot
➋
along the base of the pole-mount
bracket.
4. Thread the pole-mount bracket onto
a standard marine pole mount (not
included).
Do not overtighten the bracket.
5.
Connect the NMEA 2000 drop cable to
the antenna.
6. Place the antenna on the pole-mount
bracket, and twist it
➌
to lock it in
place.
7. Secure the antenna to the bracket with
the M3 set screw
➍
.
8. Fasten the marine pole mount to the boat
if it is not already attached.
9. Route the NMEA 2000 drop cable away
from sources of electronic interference.
10. Connect the antenna to your NMEA
).
11. After the antenna has been installed on
the pole mount, fill the remaining gap
in the vertical cable slot with a marine
sealant (optional).
