20
20
Antenna Cable
• Keep the cable as short
as possible (you lose
0.1dB per metre)
• Use a coaxial cable
• Choose a quality cable
(ideally RG 213)
AIS Receiver
• Use the correct power supply for
your AIS receiver
• Locate your AIS receiver close to
the antenna. You can shorten the
cable and extend with WiFi
• AVOID single channel AIS receivers
if the speed and completeness of
data is important to you
AIS Cable Adaptor
• Avoid using a cable
adapter. An adapter can
lose you up to 1dB
External Factors
• Nearby equipment especially LED lighng can reduce your AIS recepon. Check the RF spec
when buying new equipment or lighng for your boat
• Weather condions, for example, high humidity, can strongly decrease AIS range
• The range of an AIS signal is aected by the strength of the signal’s transmission
• Lengthy and complex AIS messages take longer to receive in busy areas
Antennas
• Place your antenna as high as possible
• Use a quality antenna, with a max 3dB gain
• If possible, use a dedicated AIS aerial, not shared
with a radio antenna
• If using one antenna shared for both AIS and VHF
radio, use an ACTIVE splier
• Omni-direconal antennas oen pick up more local
boats. Direconal antennas oen achieve a further
range, but could miss some nearer boats
TOP TIPS: maximising AIS recepon and range
V6-02-23