| GPS, also known as the Global Positioning
System is a navigation system based on communication with a network of
24 satellites that were launched into orbit by the United States
Department of Defense. The U.S. Department of Defense originally
launched these satellites for military reasons, but around 27 years ago
they made this technology available to the civilian population. There is
never a charge for the use of GPS or the Global Positioning System and
it works anywhere in the world, 24 hours a day and in any weather
condition provided you possess the proper tools to use it. How it works GPS satellites orbit the earth two times a day in a precision pattern, transmitting information to earth during this process. A GPS receiver will receive this information and uses a triangulation method to determine the GPS receivers exact location. Basically the GPS receiver calculates the time it takes to receive a signal from a particular satellite and then calculates the time it takes to receive the signal from other satellites. The GPS receiver takes these "time differences" and is able to accurately determine its exact location and display it on a user interface which usually consists of an electronic map.
A GPS receiver must lock onto at least three different satellites
"triangulation method" to accurately calculate a 2D position of latitude
and longitude and track any movement the user makes. If the GPS
receiver can lock onto at least four satellites, it can determine the
user's 3D position which consists of longitude, latitude and altitude.
Once the
GPS unit calculates the user's
position, it can also track the user's speed, bearing, track, trip
distance, distance to destination, sunrise and sunset time and more. How accurate is GPS? GPS receivers today are built extremely accurate thanks to a design called parallel multi-channel. Garmin® builds a line of 12 parallel channel receivers that when they are powered on, lock onto satellites very rapidly and they maintain a strong connection even in heavily wooded areas or large metropolitan cities with skyscrapers as obstacles. There are certain atmospheric factors and other sources that can affect the GPS receivers accuracy, but its very minor. The average Garmin® GPS receiver is accurate to within 49.2 feet (15 meters). Newer Garmin GPS receivers with WAAS (Wide Area Augmentation System) capability can improve accuracy to less than three meters on average. No additional equipment or fees are required to take advantage of WAAS. Users can also get better accuracy with Differential GPS (DGPS), which corrects GPS signals to within an average of three to five meters. The U.S. Coast Guard operates the most common DGPS correction service. This system consists of a network of towers that receive GPS signals and transmit a corrected signal by beacon transmitters. In order to get the corrected signal, users must have a differential beacon receiver and beacon antenna in addition to their GPS. Garmin Software updates and downloads Updating your unit software just got easier. Use WebUpdater to automatically keep your operating software current. Downloads for unit software, related utilities, drivers, and add-ons. MapSource® and nRoute™ mapping programs for maps and charts owners. Plus the latest maps and charts for units. User Manuals Most manuals for Garmin products are available for download in Adobe Acrobat PDF format. Sample Aircraft Flight Manual Supplements are available in MS Word (version 6.0) format. This listing reflects current Garmin documents, revisions, and effective dates. It is typically updated within one working day of document release or revision. Frequently Asked Questions The following is a listing of Frequently Asked Questions and responses which are often encountered by our Technical Support Group. |
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Garmin is the industry leader in GPS technology and has many different types of GPS receivers for almost any situation. Below are a list of some of the most current models at the best prices available online. Prices are below retail and too low to publish. Go with Garmin GPS and never be "LOST" again! |
 The Forerunner 205 includes a
high-sensitivity GPS receiver and new courses feature for optimal
performance. Designed for athletes of all levels, this running partner
and personal trainer has one goal in mind — a better you. It
continuously monitors your speed, distance, pace and calories burned so
you can train smarter, more effectively. It tracks your every move with
a super-sensitive GPS that even works on tree-covered trails and near
tall buildings. Receive a detailed post-workout analysis on the PC with
included Garmin Training Center software. |
Garmin Forerunner 101 Personal Training GPS The Forerunner 101 offers athletes and recreational walkers and runners an entry-level personal training device with GPS. It measures speed, distance, pace and calories burned, and runs on 2 AAA batteries. The Forerunner stores lap histories for up to two years to provide an archive of workout performance over time. Retrieve lap data for previous workouts by date, week, month, or over a specific time interval. For business travelers who want to train on the road, the Forerunner 101 also doubles as a navigator. Users can mark their hotel as a specific location, see their current position on the plotter display, and follow an electronic breadcrumb trail back to their starting point. |
Take your ride to the next level with the
Edge 205, Garmin's GPS-enabled personal trainer and cycle computer.
Perfect for touring and the trails, the lightweight Edge is the ultimate
fitness partner as it measures your speed, distance, time, calories
burned, altitude, climb and descent.
|
 Garmin Zumo 450 Motorcycle GPS Navigator
is rugged and ready to ride, zūmo 450 is your faithful guide to the open
road. With glove-friendly, left-handed controls, preloaded street maps
and a sunlight-readable screen, this waterproof navigator is made for
motorcycles. zūmo 450 includes many of the 550's motorcycle-friendly
features, minus bluetooth wireless technology, text-to-speech and XM
Satellite, at a price that won't break your budget. |
Garmin Forerunner 305 GPS Personal Training Unit Form meets function with Garmin's next-generation, sleek and stylish line of personal trainer the Forerunner 305. Don't let its good looks fool you. This taskmaster will continually push you to do your personal best. The Forerunner 305 combines all of the popular features found in the 301 along with a high-sensitivity GPS receiver, a new "courses" feature, and robust wireless heart rate monitor for optimal performance. |
Garmin Edge 305 GPS Personal Training Device with Heart Rate Monitor and
Cadence Sensor Featuring a heart rate monitor that uses robust, wireless technology to eliminate cross-talk and interference so it can send accurate heart rate data and a self-calibrating wireless speed/cadence sensor that lets you monitor your pedaling cadence as you ride, the Edge 305 bundle is made to help you push past your limits. Also includes a barometric altimeter. |
Garmin Rino 110 GPS Unit and 2-Way Radio Outdoor GPS Unit And 2-Way Radio All In
One!
|
Take your ride to the next level with the
Edge 305CAD, Garmin's GPS-enabled, personal trainer and cycle computer.
From competitive road racing to mountain biking, the cyclist-friendly,
lightweight Edge will help you achieve your personal best with a
self-calibrating, wireless speed/cadence sensor that allows you to
monitor your pedaling cadence as you ride. |
 Achieve your personal best with the Edge 305HR, Garmin's GPS-enabled, personal trainer and cycle computer. The cyclist-friendly, lightweight Edge comes packaged with a wireless heart rate monitor and a barometric altimeter for extremely accurate physical, elevation and vertical profile information. |
Garmin eTrex GPS Navigation Unit You'll never lose your way whether you're in a thick forest or dense fog. This smart little hand-held GPS unit from Garmin is tough, waterproof and designed for simple, one-handed operation. A great tool for mariners and outdoorsmen alike. |
 On the road, on the trail, or anywhere off the beaten path, Garmin's enhanced eTrex Legend Cx is your personal guide to adventure. With a 32 MB microSD memory card, a built-in basemap with automatic routing capability, 256-color transflective TFT display and more — all seamlessly integrated in a lightweight, compact, waterproof case that's easy to operate no matter what the conditions. |
Garmin eTrex Legend GPS Navigation Unit Ideal for navigating, exploring and traveling by foot, vehicle or boat, the Garmin eTrex Legend is one of the smartest (and smallest) GPS units on the market. It features excellent mapping capability with complete built-in road and highway map detail. And, it's compatible with MapSource CD-ROMs for access to an Atlas of worldwide maps. WAAS-enabled. 8 MB of memory. |
 Pack more into your adventure with the eTrex Venture Cx. With more color, more memory, and more automatic routing capabilities, the eTrex Venture Cx offers more value and reliable, no-fuss companionship for hikers, bikers, campers, fisherman and ... more. |
 When seeing your targets clearly is the goal, the Garmin Fishfinder 140 is the tool. The 140 features Ultrascroll for fast screen updates, and a 4-level gray scale FSTN with AutoGain and user adjustable gain for easily visible readouts. |
 Fish returns and bottom information are
clearly shown through Garmin 160C's bright, sunlight-readable color
display, making it super easy for you to scope your fishing grounds. And
with a dual-beam transducer operation for improved shallow water
performance, the 160C is one of the most ideal finders for freshwater
lake fishing. |
 The Garmin Fishfinder 90 wraps simple
operations and Garmin's exclusive fishfinder technology into an
entry-level sonar. Perfect for any vessel where space is at a premium.
Its dual-beam transducer operation gives you better shallow-water
performance and its wide viewing angle (60) lets you see fish even off
the sides of the boat. With a basic black-on-white display, the
Fishfinder 90 has one of the sharpest screens for the money. |
 From car to canoe to campsite: Wherever
your spirit of adventure calls, the Garmin GPSMAP 60CSx is your trusted
guide to the great outdoors. It's rugged, waterproof and loaded with
navigation features including a new, highly sensitive GPS receiver by
SiRF and turn-by-turn routing capability. Also includes a microSD memory
card that accepts up to 64 MB of optional MapSource data. |
 Featuring a high-sensitivity, WAAS-capable GPS receiver by SiRF in a compact, waterproof and easily operable design, this brilliant-color handheld gives you precision navigating at its simplest. Also boasts 128 MB of expandable memory on a microSD card, a built-in basemap with automatic routing capability, electronic compass, barometric altimeter, and more. |
 For those who prefer Pocket PC's and the Windows platform, introducing the Garmin iQue M4 — full GPS navigation integrated with contacts, calendar and traditional organizer functions. The M4 also offers preloaded detailed maps throughout North America and a new high-sensitivity GPS receiver for exceptional signal reception. |
 The Garmin Nuvi 350 is a portable GPS navigator, traveler's reference and digital entertainment system in one. Combined with detailed maps, the Nuvi 350 provides automatic routing, turn-by-turn voice directions, an MP3 player, JPEG picture viewer, world travel clock, currency converter and more. |
Garmin StreetPilot c330 Auto GPS Pre-loaded with highly detailed MapSource City Select street data of the entire United States, Canada and Puerto Rico, the Garmin StreetPilot c330 gives you instant, easy directions to over 6 million points of interest. Features a simple touchscreen interface with automatic route calculation to any destination and turn-by-turn, voice-prompted directions to help get you to them with ease. |
 With voice-driven, in-car navigation, the new Garmin StreetPilot c340 is simple enough for anyone to use right out of the box. Simply select a destination from the user-friendly touch screen interface, and let Garmin's text-to-speech feature tell you exactly what street to turn on, what direction to turn, and when. |
 Talk about simple. The portable Garmin StreetPilot c530 comes ready-to-go with preloaded maps and plenty of options: automatic routing, 2D or 3D map perspective and turn-by-turn voice directions to making navigation easy as possible. Plus, nearly 6 million points of interest let you easily search for hotels, restaurants, attractions and more. |
Garmin StreetPilot i3 Auto GPS An easy-to-use, affordable automotive GPS, the Garmin StreetPilot i3 offers automatic turn-by-turn directions with voice guidance, a bright TFT color display with a built-in speaker, a convenient scrolling wheel with click-to-enter functionality and a convenient windshield mount so you can see the road ahead. |
 No larger than a baseball and affordably priced, the StreetPilot i5 GPS system from Garmin is certain to be a hit for commuters, college students, and corporate travelers who want to experience the ease and enjoyment of an entry-level satellite navigation system. |
Garmin StreetPilot 2820 with Bluetooth Garmin's StreetPilot 2820 is the ideal road companion for your car or motorcycle with Bluetooth wireless connectivity and a hands-free calling interface. Featuring real-time traffic reports, an MP3 player, audio book player and an extensive points-of-interest database, the new StreetPilot 2820 from Garmin will help get you just about anywhere with ease. |
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