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1. Remove the threaded base from the antenna dome.
2. To ease installation a flush mount template for the antenna has been included.
3. Apply the mounting template sticker to the area that was verified for GPS reception.
4. Then, drill out the 0.78" (20mm) and 0.13" (3.2mm) holes, and remove the template.
5. Insert the cable into the 0.78" (20mm) hole and route to the GPS Chart Plotter.
6. Apply a small amount or RTV to the underside of the antenna.
7. Place the antenna and then screw it into place using the screws.
In some cases the screw may not be long enough. If this happens simply apply more RTV to the
underside of the antenna to glue it into place.
Smart GPS Cable
Pin
Wire Color
1
Red
2
Green
3
Brown
4
5
6
Black/Yellow
2.4
CONNECTIONS
The CP390i and CPF390i have connectors that allow them to be connected to a power
supply, optional WAAS GPS antenna, optional FF525 50/200kHz Black Box Fish Finder
(only for CP390i) and NMEA devices* such as Optional Video Camera, VHFs, AIS Receiver,
Digital Instruments and Autopilots.
RS232 not opto-isolated electrical interface
The GPS Chart Plotter can send many sentences to external NMEA devices*. The NMEA Output
wires are yellow and white. If you have connected devices as shown in the table on the next page
and need to feed NMEA to other devices (Autopilot, Radar...) you can parallel wires from the yellow,
brown or white wires to other devices.
CP390i and CPF390i
NOTE
Figure 2.3.0 - Installing the External GPS antenna
Description
Battery Positive
Smart GPS NMEA Input
Smart GPS NMEA Output
NC
NC
Battery Ground
NOTE*
NOTE
Page 17
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