User Manual

Page 11GX2000/GX2150

The Automated Radio Check Service is currently available in the areas listed

below.

West Coast Sea Tow Newport/LA - Ch. 27

Sea Tow San Diego - Ch. 27

Northeast 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

Mid-Atlantic Sea Tow Northern Chesapeake (Md.) - Ch. 28

Sea Tow Central Chesapeake (Md.) - Ch. 27

Sea Tow Hampton Roads (Va.) - Ch. 28

North Carolina Sea Tow Wrightsville Beach - Ch. 28

Sea Tow Ocean Isle Beach - Ch. 28

Florida 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

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.

NOTE

The MATRIX AIS GX2150 does not require a special marine VHF an-

tenna to receive AIS transmissions. The MATRIX AIS 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 web site: <http://