The Humminbird GPS receivers I can find info on are designed for marine and fishing use - such as when sailing on the water in a boat, yacht, ship, etc.
A Humminbird GPS receiver is a brand of GPS device and other things. Here is a link to their website if you would like to learn more. http://www.humminbird.com/
No, these devices are not made to be used in cars. Hummingbird devices are meant to be used for fishing or other marine activities. As such, they will not work on roads.
No. You would need a separate GPS receiver and GPS software (i.e. TomTom) on your palm device to decipher the GPS receiver's signal into information you can use.
For a Garmin Etrex GPS system, a receiver is not required. You can simply just buy a Garmin Etrex GPS and use it without having to buy any other accessories such as the receiver.
no
All you need is a GPS receiver from companies like Garmin, Tomtom etc.
GPS is Global Positioning System. A GPS receiver triangulates vehicle position from a network of GPS satellites in orbit around the earth. Mapping programming and data in the receiver then shows you where you are, and it can give you directions for how to navigate from one place to another.
You cant go wrong with a garmin Lawrence or humminbird. I prefer a humminbird just preference, but they all have great features. Your best bet would to be get a fishfinder/gps combo trust me on this one they are great.
GPS systems use the twenty-seven satellites that orbit the earth. The GPS receiver uses a mathematical equation similar to trilateration. The GPS receiver uses four or more of the satellites that are constantly orbiting the earth and use the information received to find it's location.
Per consumer review, the Humminbird 898c SI Combo Marine 7" Navigator seems to be the highest rated gps sounder on the market. while high priced, the Humminbird seems to have many options that make the price worthwhile. http://www.nextag.com/serv/main/buyer/OutPDir.jsp?search=gps+sounder&psort=10
A GPS receiver gets its signal from a network of satellites orbiting the Earth. These satellites continuously transmit signals that the GPS receiver uses to calculate its position and determine accurate time information. By receiving signals from multiple satellites, the GPS receiver can triangulate its position with high precision.
There are several GPS receiver modules available on Amazon.com. The Globalsat BT-359 - GPS receiver module has excellent reviews and cheapest price for the quality. You can find a link here: http://www.amazon.com/Globalsat-BT-359-GPS-receiver-module/dp/B000GWGHOK