Marine Maps
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 LOWRANCE M68C S MAP 200KHZ TM 116 03 HST WSU 116 032 $294.45 Time Remaining: 26d 17h 43m Buy It Now for only: $294.45 |
 C Map NT+ NA C305 Florida and the Bahamas GPS Chart Northstar Furuno Raymarine $0.99 Time Remaining: 3d 20h 37m |
 Humminbird 898c SI Combo GPS Receiver w Contour Maps $1,329.99 Time Remaining: 25d 10h 23m Buy It Now for only: $1,329.99 |
 GARMIN GPSMAP 640 Marine Auto Car GPS Navigator Chartplotter w Maps 010 00696 40 $539.95 Time Remaining: 20d 15h 28m Buy It Now for only: $539.95 |
 Standard Horizon CP190I 5 Internal GPS Chartplotter w Built In C Map Technology $523.92 Time Remaining: 9d 23h 3m Buy It Now for only: $523.92 |
 Garmin BlueChart Americas Marine Maps on microSD+SD Adapter Data Card $99.00 Time Remaining: 18d 10h 17m Buy It Now for only: $99.00 |
 Northstar 6000i 12 Multifunction Display GPS MAP AS IS NO POWER PARTS $449.95 Time Remaining: 21d 6h 7m Buy It Now for only: $449.95 |
 NEW Garmin 010 11318 00 Land Marine Map $97.83 Time Remaining: 6d 15h 28m Buy It Now for only: $97.83 |
 Raymarine C70 Classic Multi Function Display Only Radar Fishfinder GPS Map $825.00 Time Remaining: 29d 16h 45m Buy It Now for only: $825.00 |
 GARMIN NUVI 500 AUTOMOTIVE MARINE BIKE GPS RECEIVER WITH TOPO MAPS $102.50 (4 Bids) Time Remaining: 3d 21h 57m |
 GARMIN GPSMAP 76S MARINE WITH CUSTOM MAPS HUNT BOAT GEOCACHE GPS MAP CX CSX $129.95 Time Remaining: 22d 13h 31m Buy It Now for only: $129.95 |
 NEW Garmin 010 C1056 00 Land Marine Map North America $47.99 Time Remaining: 19d 11h Buy It Now for only: $47.99 |
 Magellan MapSend Americas Marine Charts for MAP 410 NEW $54.99 Time Remaining: 3d 17h 9m Buy It Now for only: $54.99 |
 GARMIN GPSMAP 76 MARINE HUNT BOAT GEOCACHE FLOATING GPS CUSTOM MAPS CS CX CSX $119.95 Time Remaining: 27d 8h 1m Buy It Now for only: $119.95 |
 NEW Garmin 010 C1042 00 Land Marine Map $76.79 Time Remaining: 9d 20h 35m Buy It Now for only: $76.79 |
 Active Marine GPS Antenna for Lowrance Global Map 1600 GlobalMap LMS 160 Map $23.99 Time Remaining: 4d 14h Buy It Now for only: $23.99 |
 Garmin GPS MAP 188 GPS Sounder Receiver Head Unit only No accessories $299.99 Time Remaining: 13d 2h 31m Buy It Now for only: $299.99 |
 HD GPS DVR Dash Camera Video Recorder Car Boat Fishing Hunting Marine New MAPs $99.98 Time Remaining: 4d 15h 20m Buy It Now for only: $299.99 |
 Humminbird LakeMaster ProMap Illinois Iowa HPILIAC2 Digital Marine Map North $124.95 Time Remaining: 19d 12m Buy It Now for only: $124.95 |
 Navionics Platinum Plus Lake Superior Digital Marine Map North America $220.43 Time Remaining: 18d 23h 50m Buy It Now for only: $220.43 |
 MARINE ANTENNA FOR GARMIN GPS MAP 178 180 182 182C 188 $18.68 Time Remaining: 19d 22h 45m Buy It Now for only: $18.68 |
 Trent Severn Waterway Canada Craft Nautical Chart Marine Sailing Boating Map 028 $19.99 Time Remaining: 25d 8h 11m Buy It Now for only: $19.99 |
 Trent Severn Waterway Canada Craft Nautical Chart Marine Sailing Boating Map 023 $19.99 Time Remaining: 25d 8h 11m Buy It Now for only: $19.99 |
 Trent Severn Waterway Canada Craft Nautical Chart Marine Sailing Boating Map 026 $19.99 Time Remaining: 25d 8h 11m Buy It Now for only: $19.99 |
 Cant UnLock Internal Map Garmin GPSMAP 478 Handheld Marine GPS For Spare Parts $449.99 Time Remaining: 23d 5h 22m Buy It Now for only: $449.99 |
 Raymarine C70 Classic Multi Function Display Only Radar Fishfinder GPS Map $0.99 Time Remaining: 4d 16h 46m |
 HD GPS DVR Dash Camera Video Recorder Car Boat Fishing Hunting Marine New MAPs $299.00 Time Remaining: 22d 18h 48m Buy It Now for only: $299.00 |
 Standard Horizon CP390i 7 Int GPS Chart w C MAP Cart $862.95 Time Remaining: 5d 13h 10m Buy It Now for only: $862.95 |
 Power Cable Magellan GPS SporTrak pro Marine Map Topo $15.99 Time Remaining: 20d 17h 40m Buy It Now for only: $15.99 |
 REMOTE MARINE ANTENNA GARMIN GPS MAP 120 120XL 128 135 $18.95 Time Remaining: 20d 23h 40m Buy It Now for only: $18.95 |
 RAM HOL MA3 Cradle for Magellan Sportrak ATV Color Map Marine Outdoor Pro Topo $11.99 Time Remaining: 28d 19h 4m Buy It Now for only: $11.99 |
 Trent Severn Waterway Canada Craft Nautical Chart Marine Sailing Boating Map 025 $19.99 Time Remaining: 25d 8h 11m Buy It Now for only: $19.99 |
 Murray Canal Waterway Canada Craft Nautical Chart Marine Sailing Boating Map 021 $19.99 Time Remaining: 25d 8h 11m Buy It Now for only: $19.99 |
 HiFast 70 HD GPS Movie Player BT FMT Car Boat Fishing Hunting Marine New MAPs $193.54 Time Remaining: 5d 13h 40m Buy It Now for only: $291.76 |
 Trent Severn Waterway Canada Craft Nautical Chart Marine Sailing Boating Map 029 $19.99 Time Remaining: 25d 8h 11m Buy It Now for only: $19.99 |
 Georgian Bay Waterway Canada Craft Nautical Chart Marine Sailing Boating Map 205 $19.99 Time Remaining: 25d 8h 11m Buy It Now for only: $19.99 |
 MARINE ANTENNA FOR GARMIN GPS MAP 178 180 182 182C 188C $36.99 Time Remaining: 27d 13h 54m Buy It Now for only: $36.99 |
 MARINE ANTENNA FOR GARMIN GPS MAP 276C 292 295 296 376C $18.65 Time Remaining: 21d 5h 36m Buy It Now for only: $18.65 |
 MARINE ANTENNA FOR GARMIN GPS MAP 276C 292 295 296 376C $18.65 Time Remaining: 19d 22h 46m Buy It Now for only: $18.65 |
 LOWRANCE M68C S MAP 200KHZ TM 116 03 HST WSU 116 032 $308.03 Time Remaining: 15d 5h 36m Buy It Now for only: $308.03 |
 Humminbird LakeMaster HPTXOKC1 Digital Marine Map North America United $124.95 Time Remaining: 19d 12m Buy It Now for only: $124.95 |
 C Map Marine Navigation Data Card PT Lake Erie West $12.50 Time Remaining: 5d 15h 55m Buy It Now for only: $15.00 |
 MARINE ANTENNA FOR GARMIN GPS MAP 178 180 182 182C 188 $18.68 Time Remaining: 21d 5h 35m Buy It Now for only: $18.68 |
 C MAP NA B527 Lake Worth to st Johns River Marine Chart $100.00 Time Remaining: 29d 10h 26m Buy It Now for only: $100.00 |
 Standard Horizon CP390i 7 Internal GPS Chartplotter w Built In C MAP Cartograp $864.94 Time Remaining: 4d 21h 15m Buy It Now for only: $864.94 |
 Flat Surface Mount for Magellan Sportrak ATV Color Map Marine Outdoor Pro $38.95 Time Remaining: 5d 22h 33m Buy It Now for only: $38.95 |
 Standard Horizon CP190I 5 Internal GPS Chartplotter w Built In C Map Technology $542.69 Time Remaining: 8d 16h 17m Buy It Now for only: $542.69 |
 HEAVY DUTY SUCTION CUP FOR Magellan SPORTRAKATVMAPMARINEOUTDOORPROTOPO $39.99 Time Remaining: 17d 12h 59m Buy It Now for only: $39.99 |
 Standard Horizon CP190I 5 Int GPS plotter w C Map $529.99 Time Remaining: 5d 17h 3m Buy It Now for only: $529.99 |
 NEW Garmin GPSMAP 78s Marine handheld GPS With Canada Topographic Maps $335.54 Time Remaining: 5d 16h 35m Buy It Now for only: $369.58 |
 Motorcycle Mount for Magellan Sportrak ATV Color Map Marine Outdoor Pro $37.95 Time Remaining: 5d 22h 36m Buy It Now for only: $37.95 |
 MARINE ANTENNA FOR GARMIN GPS MAP 178 180 182 182C 188C $18.75 Time Remaining: 19d 22h 46m Buy It Now for only: $18.75 |
 MARINE ANTENNA FOR GARMIN GPS MAP 178 180 182 182C 188C $18.75 Time Remaining: 21d 5h 34m Buy It Now for only: $18.75 |
 Navionics Platinum Plus Lake Erie and St Clair Marine Digital Map North $220.43 Time Remaining: 19d 3m Buy It Now for only: $220.43 |
 REMOTE MARINE ANTENNA GARMIN GPS MAP 120 120XL 128 135 $18.95 Time Remaining: 21d 5h 30m Buy It Now for only: $18.95 |
 REMOTE MARINE ANTENNA GARMIN GPS MAP 120 120XL 128 135 $36.99 Time Remaining: 27d 13h 59m Buy It Now for only: $36.99 |
 Furuno GP1920C NT Furuno NavNet GP1920C NT vx2 Chartplotter C Map NT Kit $2,942.40 Time Remaining: 29d 53m Buy It Now for only: $2,942.40 |
 Garmin GPSMAP 526 Color Marine GPS Chartplotter Worldwide Map Brand New $549.00 Time Remaining: 6d 4h 25m |
 Garmin GPSMAP 76CSX GPS + Bluechart v 95 map software $293.95 Time Remaining: 14d 20h 31m Buy It Now for only: $293.95 |
 Humminbird LakeMaster ProMap Dakotas Nebraska HPDAKC2 Digital Marine Map North $124.95 Time Remaining: 2d 19h 56m Buy It Now for only: $124.95 |
 Navionics Platinum Plus Puget Sound Land Marine Map North America United $177.70 Time Remaining: 19d 4m Buy It Now for only: $177.70 |
 C Map NT+ NA C305 Florida and the Bahamas GPS Chart Northstar Furuno Raymarine $99.95 Time Remaining: 19d 20h 26m Buy It Now for only: $99.95 |
 Marine Navigation Electronic Charts C Map Upper Chesapeake Bay J12703 $10.00 Time Remaining: 13d 15h 16m Buy It Now for only: $10.00 |
 MARINE ANTENNA FOR GARMIN GPS MAP 178 180 182 182C 188 $36.99 Time Remaining: 27d 13h 54m Buy It Now for only: $36.99 |
 GARMIN GPSMAP 76Cx CUSTOM MAPS COLOR MARINE AUTO HIKE BOAT CS CSX $229.95 Time Remaining: 5d 10h 37m Buy It Now for only: $229.95 |
 HiFast 70 HD GPS Movie Player BT FMT Car Boat Fishing Hunting Marine New MAPs $193.54 Time Remaining: 6d 14h 9m Buy It Now for only: $291.76 |
 HiFast 70 HD GPS Movie Player BT FMT Car Boat Fishing Hunting Marine New MAPs $291.76 Time Remaining: 10d 22h 24m Buy It Now for only: $291.76 |
 Garmin GPSMAP 76CSX GPS + Bluechart v 80 map software $289.95 Time Remaining: 13d 23h 49m Buy It Now for only: $289.95 |
 Garmin Marine Mount 76 Map76 72 $30.62 Time Remaining: 14d 15h 28m Buy It Now for only: $30.62 |
 Garmin GPSMAP 76CSX GPS + Bluechart map software US Inland Lakes on micro card $284.95 Time Remaining: 4d 18h 24m Buy It Now for only: $284.95 |
 C Map NT+ MAX Marine Plotter LOCAL Electronic Charts $171.30 Time Remaining: 6d 12h 53m Buy It Now for only: $171.30 |
 Humminbird LakeMaster ProMap Michigan HPMIC2 Digital Marine Map North America $124.95 Time Remaining: 6d 17h 1m Buy It Now for only: $124.95 |
 GARMIN GPSMAP 5212 COASTAL Maps and GMR 24HD Radar Dome $4,799.00 Time Remaining: 3d 9h 53m Buy It Now for only: $4,799.00 |
 Northstar 6000i 12 Multifunction Display GPS MAP AS IS NO POWER PARTS $0.99 Time Remaining: 6d 21h 41m |
 GARMIN GPSMAP 526 MARINE GPS CHARTPLOTTER WORLDWIDE MAP $669.75 Time Remaining: 20d 18h 52m Buy It Now for only: $669.75 |
 Navionics Platinum Plus Chesapeake Bay Marine Map North America United $178.17 Time Remaining: 1d 19h 45m Buy It Now for only: $178.17 |
 Navionics Gold Canada and Southeast Alaska Digital Marine Map North America $220.43 Time Remaining: 18d 23h 49m Buy It Now for only: $220.43 |
 Navionics Platinum Plus Oregon and California Land Marine Map North America $178.17 Time Remaining: 19d 4m Buy It Now for only: $178.17 |
 Navionics Platinum Plus North Carolina Marine Digital Map North America $178.17 Time Remaining: 19d 4m Buy It Now for only: $178.17 |
 Navionics Platinum Plus Central Gulf of Mexico Marine Map North America $178.17 Time Remaining: 28d 20h 13m Buy It Now for only: $178.17 |
Things to Know When Shopping for Discount Marine GPS
A Global Positioning System (GPS) has become one of the de facto "must have" electronic marine devices for every boat on the water. A marine GPS device provides two functions in particular that, once you get used to, you will wonder how you ever managed without.
First, marine GPS provides you essential information about where you are and how fast you are traveling. Most marine GPS units will tell you where you are within two to three meters of accuracy, how fast you are traveling and how far you are from shore.
Second, most marine GPS units allow you to set waypoints. A waypoint is a marker for where you are currently. This feature allows you to plot a navigation route through craggy rocks or difficult waters, avoiding buoys, nets and other obstacles. Multiple waypoints form a route that you can save and use as a guide for the inbound journey or re-use another time for safer and easier navigation to a favorite location. Another great benefit of setting waypoints is that you can mark significant finds whether this is an abundant fishing spot, a great scuba diving location or the position of a wreck.
By overlaying GPS waypoints with an integrated mapping tool or chart plotter, a marine GPS can give you a very precise picture of where you have been, where you are, where you want to go and what lies in your path.
Ultra-precise GPS marine electronics include the addition of signals from the Wide Area Augmentation System (WAAS). WAAS is program that was developed the Federal Aviation Administration to correct GPS errors. Satellites travel on an elliptical path in orbit around the earth. The calculations used to determine where you are depend also on knowing exactly where the GPS satellites are. The orbital path of a satellite is disrupted by a score of natural phenomena, including space weather, the gravitational pull from the Earth and other factors. WAAS performs corrections for these factors, increasing the accuracy of the GPS signals that your GPS receiver processes.
If your marine GPS is WAAS enabled (and most are these days) then you will benefit from this improved accuracy without doing a thing. You don't have to configure it or subscribe to it. However, it is only available in North America; so if you are sailing outside the US waters just know that the accuracy of your marine GPS may dip from better than three to less than seven meters and possibly to less than fifteen meters. WAAS is a good feature to look for when shopping for discount marine GPS.
WAAS enabled marine GPS can be mounted (fixed position) or portable (hand-held) systems. Hand-helds are useful if you leave the boat to visit a local hotspot on dry land, explore an island or simply find where you left your boat in a large and unfamiliar marina. If you do intend to use your portable marine GPS on dry land, then it is definitely worth paying more for one that comes with built-in maps because following a compass point that is plotted as a straight line is not easy on land, especially in urban areas or over mountainous terrain.
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