Small fishing boat. A remote fishing village. Reef。 Map。,,,,,,,,,,,,,,,,,,,,,,Know the trouble to help ah... Thank you.
GPS widely used in ship positioning, navigation and other purposes! Is an important sea navigation instrument! Don't know what you need, it is the principle of content, or sea specific application content, principle,The specific application of content navigation time, which is based on the above longitude, determining the satellite position, the ship on the chart for reference! Now GPS has the way point and route function with most of the ship is a route to input to GPS inside, so that the turning point and the distance. From the end point under a heading, and whether to deviate from the planned route! In addition, input application many instruments on the ship to GPS signals, such as ARPA radar, AIS equipment, VDR navigation information recorder (black box ship), and other communications and navigation and other important equipment, need to signal input GPS but most often! Is used to determine the position, route and position alarm input set!
In addition, the inside of the electronic chart is estimated to be purchased separately! You can only buy you often sea area of activity is good, but you are more remote, no large scale chart response can be used, as you said the reef, as long as you know, marked out on the line in the electronic map on the sea!
Dude, you say something, or you want to function, domestic Beidou system has, the foreign GPS also, but remember, must take the function of electronic chart, I met many fishermen and fishing boats in the sea, all with the use of electronic chart function of radar or GPS, it is said that the domestic commercial Beidou system and also, terminal equipment can be used, you need to consult the specific dealer!