Typical antenna installations

 

Long wire antenna

Whip antenna

Ship station

Power boats

On ship stations, the long wire antenna is spanned

On power boats, selection of a mounting location

between supporting structures. The length of the

for a whip antenna is much easier, since there is

horizontal wire should be between 6 and 15

no mast or deck fixture to worry about. A whip

meters. And the length of the vertical wire should

antenna can be installed almost anywhere,

be no less than 5 meters, the longer the better

again the higher the better. If your boat has a

transmission.

flybridge, install it there. If not, install it atop the

 

 

 

cabin. Make sure the mounting location is

 

 

 

sufficiently apart from any nearby objects

 

 

 

which might affect communication.

 

 

 

 

Sailboat

On sailboats, the long wire antenna is mounted on the backstay using special high-voltage insulators. Make sure the selected location is sufficiently apart from any metal riggings which might cause detuning. If a wire topping lift is used with an insu- lated backstay, special care must be taken to ensure the topping lift does not get caught in the backstay since the antenna may be shorted to ground— damaging the transmitter.

Fishing boat/Sailboat

For whip antenna installation on a fishing boat or sailboat, the mounting location must be chosen carefully so as not to interfere with vessel operation. In case of a sailboat, locate the antenna away from the spinnaker, jib and of course the boom. Stay especially clear of the backstay. The taffrail is a good location in the event of dismasting, since the antenna won’t be carried away. The best location, however, is atop the mast, the higher the better for effective communication. It is always a good idea to keep spare wire or an emergency antenna onboard in case of an emergency.

Figure 1-6 Typical antenna installations

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Furuno FS-1503 manual Typical antenna installations, Long wire antenna Whip antenna