Handhelds for Marine Technology

Handheld receivers are usually just as accurate as any other type, so accuracy shouldn't be an issue when deciding which type to choose. The low cost of a handheld is the chief advantage, as some are available for less than $100 US. Another plus is the ability to use it hiking or in the car. Keep in mind that you, your boat, and your handheld will all be moving, so the small buttons will be difficult to use at times. Most units accept an optional mounting bracket and this would free up an extra, valuable hand. The location of the GPS needs to be considered, as you need to be able to see the screen easily. Will it be in direct sunlight? If so, choose a model with a screen that can be read in that situation. Screen size can vary a lot from model to model, so consider that you will want to be able to see the screen without discomfort. Location again comes into play regarding the antenna. GPS does not work well when held close to the body or through metal. Test the area you are thinking about placing the receiver by looking at the signal strength of the satellites. If the signal is not good where you need to put it, an external antenna is an option for some models. Since a GPS receiver runs on batteries, an external power source would be a good idea. Just make sure the model you get can run off of external power. Garmin makes a line of handheld models for marine use.