What Is The Range For Ais Receivers; Accuracy Of Cog - Standard Horizon QUANTUM AIS GX6000 Owner's Manual

West Coast
Northeast
Mid-Atlantic
North Carolina
Florida
5.10

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 GX6000 require two separate marine VHF antennas; one antenna
for VHF and a second antenna for AIS.
For additional information on AIS visit the USCG website:
<http://www.navcen.uscg.gov/marcomms/ais.htm>
5.11

Accuracy of COG*

The error in the COG (the path of the antenna position over ground) due to the
actual ship's speed over ground shall not exceed the following values:
Speed range (knots)
0 to ≤1 knot
>1 to ≤17 knots
>17 knots
* Only when the SCU-31 external GPS antenna connected.
Sea Tow Newport/LA - Ch. 27
Sea Tow San Diego - Ch. 27
Sea Tow Portland-Midcoast (Maine) - Ch. 27
Sea Tow Boston - Ch. 27
Sea Tow South Shore (Mass.) - Ch. 28
Sea Tow Rhode Island - Ch. 24
Sea Tow Eastern Long Island - Ch. 27
Sea Tow Huntington (N.Y.) - Ch. 27
Sea Tow Manasquan (N.J.) - Ch. 28
Sea Tow Northern Chesapeake (Md.) - Ch. 28
Sea Tow Central Chesapeake (Md.) - Ch. 27
Sea Tow Hampton Roads (Va.) - Ch. 28
Sea Tow Wrightsville Beach - Ch. 28
Sea Tow Ocean Isle Beach - Ch. 28
Sea Tow Sebastian - Ch. 28
Sea Tow Fort Lauderdale - Ch. 27
Sea Tow Charlotte Harbor - Ch. 24
Sea Tow Tampa Bay - Ch. 27
Sea Tow Horseshoe Beach - Ch. 27
Sea Tow Carrabelle/St. Marks - Ch. 27
Sea Tow Pensacola/Orange Beach (Ala.) - Ch. 27
NOTE
Accuracy of COG output to user
Unreliable or not available
±3°
±1°
9