With the GPS attached to the screen of the laptop, the laptop is free to move about the boat

Ideal laptops to use would be an ASUS UX430UA, or a Lenovo 720s, although any low cost, low power (long battery life) laptop would work.

For example, in Google Maps as well as in another 3rd party GPS app, the accuracy of the dongle was reported as 10 meters, while the integrated chip of the tablet had an accuracy of 4 meters