SPACE.com: Is GPS technology something most people
need?
Mehaffey: GPS is not something that "most
people need," but many people who drive in unfamiliar territory will enjoy the
confidence that having a GPS Car Navigator gives them. Emergency detours in
unfamiliar driving areas are a great example, as well as just being able to
drive directly to a selected street address with automatic guidance.
SPACE.com: Is there a steep learning curve for
the devices?
Mehaffey: The latest car navigator devices
require a very modest learning experience. In most cases, an hour with the manual
and the unit will make you proficient. If someone initially sets up (say) a
Garmin StreetPilot 2610 for you, about 10 minutes of work will allow you to
input addresses and operate the basic functions of the unit.
SPACE.com: Devices can be expensive, and the
array of uses is varied. Any advice for someone who wants to explore the technology
but doesn't have a particular need in mind?
Mehaffey: No. Buying a GPS is sort of like
buying a car. You need to have some need and function in mind before you buy
one because there are a wide variety of units and each one is designed toward
a specific user need. For instance, if you buy a unit optimized for hiking,
you will be disappointed if you try and use it for automatic car navigation.
SPACE.com: What should a consumer watch out for
in making a purchase?
Mehaffey: He should make sure that the
unit he purchases a) has the features he wants, and b) the map coverage and
types suited for his application.
SPACE.com: Are some brands better than others?
Mehaffey: The
three major consumer brands are Garmin, Magellan and Lowrance. Each makes good
products. There are differences in form, features, and functionality between
various units offered.
SPACE.com: Is it better to purchase online or
at a brick-and-mortar store?
Mehaffey: The
discount online stores usually offer lower prices. Brick-and-mortar stores can
(often) provide a bit of startup help over the counter.
advertisement
