What Is The Range For Ais Receivers - Standard Horizon QUANTUM GX6500E Owner's Manual

4.10

WHAT IS THE RANGE FOR AIS RECEIVERS?

Since AIS uses similar frequencies as a marine VHF radio, it has similar radio
reception capabilities - which are basically line of sight. This means that the
higher the VHF antenna is mounted, the greater the reception area will be.
Reception from Class A vessels that are 20 or even 30 miles away on open
water is not uncommon as their antennas are mounted high off the water. Class
B transponders use lower power for transmissions; therefore you can expect
Class B vessels to be acquired when they are 5 to 10 miles away.
The GX6500E/GX6000E does not require a special marine VHF
antenna to receive AIS transmissions. The GX6000 does not transmit
AIS signals, it is NOT recommended to use an antenna dedicated for
AIS operation.
For additional information on AIS visit the USCG website:
<http://www.navcen.uscg.gov/marcomms/ais.htm>
Page 12
NOTE
GX6500E/GX6000E