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Aerials and Mounts VHF-AIS-HF-AM-FM

< 1.2m Aerials
2.4m Aerials
5m-7m Aerials
Emergency Aerials

Aerials and Mounts VHF-AIS-HF-AM-FM

TIPS ON CHOOSING THE PROPER ANTENNA

Antenna Length - Height is paramount in getting the greatest range, and encourages the choosing of an antenna that can be placed as high as possible on the boat.

Gain - This is a rating stated in decibels (dB). Generally, the higher the gain, the greater the communicating range. However, keep in mind that the higher the gain, the more compressed the beam width becomes (see illustration). A narrow beam can cause fading in rolling seas. Small, lightweight boats, which roll excessively in heavy seas, normally do not use a gain rating above 6dB. The more stable the platform of a vessel, the higher the gain that can effectively be used.

Low Angle Radiation -  Shakespeare pioneered low angle techniques in marine antennas in the 1960s and built them into many models. Low angle minimizes fading while maximizing range even during excessive boat roll in turbulent seas. A normal angle shortens the range and wastes power.

A FINAL WORD - The greatest tip to keep in mind is that no matter how much you pay for your radio, its performance will be directly proportional to the quality and performance capabilities of the antenna. Don’t compromise... Insist on genuine Shakespeare.


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