eTrex GPS Navigator

Automatic Identification System, AIS - The Best Navigation Aid to Boaters Since the GPS   One of the fastest and biggest growth areas in marine navigation is AIS. Having a AIS transmitter unit onboard, will turn your boat into a radio beacon continuously transmitting speed and course and your identity. Conversely having an AIS receiver allows you to track a ships, COG, SOG when in VHF range. This can be very important information for navigating in shipping lanes and channels. What is AIS? AIS stands for Automated Identity System. The identity is the transmitting vessels MMSI number, current speed and course which are just some of the information you can get. AIS has been developed to help prevent collisions between commercial shipping. AIS has been a legal requirement on ships over 300GT for a while. In US waters it is required by commercial ships over 65ft and tugs over 26ft and over 600 HP. Vessels with the proper equipment can receive/send the AIS signal over a special ...

Easy Navigation in the Woods or on the Water with the Garmin eTrex GPS Handheld  Tracki GPS Tracker for Vehicles I am an expert navigator with a map & compass but neither is as effective or as easy as the eTrex. I highly recommend the Gramin eTrex as a basic navigational aide. It's also a great starter for learning about GPS systems. It does everything it's meant to and does it very well. Garmin's claims of one handed usage are for real, it is easy to navigate the interface with the solid buttons on the unit." The Garmin eTrex GPS has one of the longest battery lives on the market, another major influence to purchase, and because it is only powered by two AA batteries, the maintenance costs are minimal. I highly recommend the Garmin eTrex GPS to users of any skill looking for a quick, reliable and inexpensive GPS fix. Nothing fancy about this unit -- other than the remarkably easy to use interface. Its not possible to do better in this price range. The ...