for their influence on the radar at the first opportunity after fitting. (The method of determining blind
and shadow sectors appears later in this chapter.)
• If you have a radio direction finder on your boat, locate its antenna. Clear the antenna unit, to
prevent interference to the direction finder. A separation of more than two meters is recommended.
• To lessen the chance of picking up electrical interference, avoid routing the signal cable near other
onboard electrical equipment. Also avoid running the cable in parallel with power cables.
• The compass safe distance should be observed to prevent deviation of the magnetic compass.
Standard Compass
Steering Compass
1.3m
0.7m
3.2 Mounting of the MDS-12 Radome
Unpacking the antenna unit
1. Open the antenna unit packing box carefully.
2. Unbolt the four bolts at the base of the redone to remove the radome cover.
Typical antenna unit location
Figure 3.2a - Radome cover
Radome cover
Bolts
Figure 3.2b - Antenna unit
3. Drill holes in the antenna mounting platform in accordance with the previous removal of the
base mounting map.
Note
: the hole is arranged in parallel with the center line of the ship.
4. Loosen the antenna cover and the base of the 4 screws, carefully remove the cover.
5. Remove the cable clamping plate by unfastening four screws and removing a gasket.
6.
Pass the cable through the hole at the bottom of the radome base.
7. Secure the cable with the cable clamping plate and gasket. Ground the shield and vinyl wire
by one of the screws of the cable clamping plate.
