8
GMR 400/600/1200 xHD Installation Instructions
Configuring the Radar
After you install the radar, you must prepare the chartplotter or the Garmin Marine network to properly use the radar.
1. Update the chartplotter or Garmin Marine Network software.
2. Enter the radar antenna size.
3. Set the Front of Boat Offset if necessary.
Updating the Chartplotter or the Garmin Marine Network
If you have a GPSMAP 4000, 5000, 6000, 7000, or 700 series chartplotter, use a blank SD card to update the chartplotter or the network
according to the instructions in the chartplotter owner’s manual.
If you have a GPSMAP 3000 series chartplotter, use a blank Garmin Data Card to update the chartplotter or the network according to the
instructions in the chartplotter owner’s manual.
Download the latest software from www.garmin.com.
Entering the Radar Antenna Size
Using a chartplotter, specify the size of your radar antenna (4 foot or 6 foot). Until you specify the antenna size, the warning “Radar Needs
Configured” appears on the chartplotter.
nOTe:
Ensure you specify the correct antenna size on your chartplotter to obtain optimum performance.
To enter the radar antenna size on a GPSMAP 4000,5000, 6000, 7000, or 700 series chartplotter:
1. From the Home screen, select
Radar
.
2 From the Radar screen, select
Menu
>
Radar Setup
>
Antenna Size
.
3. Select the correct antenna size,
4 foot
or
6 foot
.
To enter the radar antenna size on a GPSMAP 3000 series chartplotter:
1. Press the
PAGE
key to switch to the Radar page.
2. Press the
Setup
softkey to open the setup page.
3. Using the
ROCKER
, highlight the
Advanced
tab, then the
Antenna Size
field, and press
ENTER
.
4. Select the correct antenna size,
4 foot
or
6 foot
, and press
ENTER
.
Changing the Front of Boat Offset
Depending on the radar installation, you may need to change the Front of Boat Offset. If the radar installation
requires a 180° offset, change the Front of Boat Offset to 180° and test the radar. If the Front of Boat Offset
needs further adjustment, measure the radar offset and change the offset using the following procedures.
To measure potential radar offset:
1. Using a magnetic compass, take an optical bearing of a stationary target located within viewable range.
2. Measure the target bearing on the radar.
3. If the bearing deviation is more than +/- 1°, further correct the Front of Boat Offset.
To change the Front of Boat Offset on a GPSMAP 4000, 5000, 6000, 7000, or 700 series
chartplotter:
1. From the Home screen, select
Radar
.
2. From the Radar screen, select
Radar Setup
>
Front of Boat
.
3. Enter an offset value, then select
Back
.
To change the Front of Boat Offset on a GPSMAP 3000 series chartplotter:
1. From the Radar page, press the
Setup
softkey to open the setup page.
2. From the Setup page, using the ROCKER, select the
Advanced
tab.
3. Highlight the
Front of Boat Offset
slider, and press
ENTER
.
4. Adjust the value accordingly. The preview window changes as you adjust the slider.
5. After an offset is determined, press
ENTER
to save, and press
QUIT
to return to the Radar page.
bow
stern
Front of Boat Offset = 0°
Front of boat Offset = 180°
