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Outdoor navigation meets touchscreen simplicity in Dakota 20. This rugged, palm-sized navigator combines touchscreen navigation, high-sensitivity GPS with HotFix satellite prediction, barometric altimeter, 3-axis electronic compass and microSD card slot in one affordable, power-packed punch.
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Technical Details
- Sunlight-readable, 2.6-inch color touchscreen display- High-sensitivity GPS with HotFix satellite prediction
- Built to withstand the elements: bumps, dust, dirt and water
- Preloaded with a worldwide basemap plus has 850 MB of free internal memory for map transfers
- Includes 3-axis tilt-compensated electronic compass, barometric altimeter, microSD slot, and wireless sharing between units
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By Mark Witt (Oakland, CA)
After losing a Garmin etrex vista hCX which I loved, I decided to go with the Dakota 20 (D20). I will be comparing the two in the review.
Maps and Storage:
The D20 comes loaded with a basemap, which has most major highways, but no streets. So for your purpose, you can choose City Navigator (required for auto navigation to work), or Topo 2008 (shows mountain countours & most lakes). Luckily, I had both Topo and City Nav on my computer.
Since the D20 comes with 850mb of internal memory, it's enough for self selected regions in Topo 2008 and/or Inland Lakes map, but not for City Nav. I put in a 4gb microSDHC card, which handled the 1.2gb .IMG file of the city navigator map. What might trouble some is that the D20 does not come with Mapsource(a great program for making custom maps, and upload trails and routes) or any kind of software. The hCX comes bundled with Mapsource. Although if you purchase the City Navigator, it comes with Mapsource.
When combining multiple maps onto the device, the D20 is much more convenient as you simply add the .IMG files (must have different file names) into the Garmin folder. D20 will automatically detect the maps and enable them. In the hCX, you had to merge all of the .IMG files into one or use seperate microSD cards, which was a toll. Just a note: Like the hCX, the D20 clumps all of the routes and trails into one file(named by date) on the gps.
Auto Navigation:
I didn't find much info about Auto Navigation for the D20 before purchased, so I wasn't sure what to expect. After trying it a few times, it's definitely a step up from the hCX. There's an Automobile mode for navigation, where the map is tilted so you can see the turn coming from farther ahead. The directions text is noticeably smaller on the D20, which might be hard for some to read. The longer the street name or direction, the smaller the text. You can customize what information you want to see (i.e-distance to destination), although you can't edit the text size. The D20 gives almost the same beep as the hCX when turns are approaching(no voice of course). The D20 navigation overall is more pleasing to the eye.
Battery Life:
The hCX wins on battery life 25 hrs vs 20 hours on the D20. There is a battery save mode on the D20 that definitely improves battery life. How it works is the screen will turn off in about 15 idle seconds to save power, and you simply touch the screen to see again. On D20's regular battery mode, I noticed the battery drains very quickly -definitely less than 20 hours. Recharcheable NiMH AA batteries are a must since you'll be going through them quickly. I use Sanyo Eneloop and Rayovac Hybrid. Be sure to change the Battery type under Setup>System to get the correct battery meter.
Visibility:
This has been the biggest complain by some, but I found the visibility/brightness on the D20 to be suitable for most types of lighting, including in the sun and in the dark. You can adjust the backlight (although brighter means less battery life). I'll admit it can be harder to see in certain angles of sunlight, but this hasn't been a problem during auto nav or regular use. The hCX is slightly brighter, but it's not a significant difference.
Accuracy:
During initial use, the satelites weren't detected on the D20. I had to walk outside before the Satelites could lock on. The D20 has three modes for Satellite: Normal, WAAS, and Demo. I've had the most accurate luck with WAAS as i'm assuming it's using the new satelite technology. On the D20 i've gotten accuracy as close as 10 ft, whereas on the hCX 20ft was usually the closest it would ever get. In general though, the satelite signal on the D20 is about the same as the hCX.
GPS Interface:
This is where the D20 far outshines the hCX. You navigate through all of the menus by touch. This is such a relief from using hCX's mini joystick and side buttons. What's nice about the D20 is you can move the map around by sliding your finger on it, whereas on the hCX joystick you have to sluggishly go at an angle. The D20 works much faster in operation. For example, it refreshes the maps considerably faster than the hCX. This equals less headaches when trying to pinpoint a location.
The layout on the D20 is very straight forward. The main menu contains all of the icons (Map, Where to, Track Manager, Setup, etc.) and you can scroll through all of the features by the arrows on the bottom corners. The hCX has a higher learning curve as you have to manipulate multiple buttons to get somewhere.
GPS Use:
I use the D20 for fitness activities: kayaking, jogging, cycling, and hiking. I can easily plot my map with distance and tracks(breadcrumb trails) onto websites that map .GPX files(Mapmyfitness, Motionbased). I use it too, of course, for auto navigation. The hCX is capable of doing all these things as well, but its not nearly as modern and simple as the D20.
Overall:
While it was quite unfortunate I dropped the hCX in the lake, the D20 has proven to be a suitable upgrade and replacement. The D20 and hCX both have their strengths and weaknesses, but i'm definitely enjoying the experience of the user friendly D20. I have yet to determine it's true ruggedness, but will post updates if anything else should be mentioned.
By Glenn Gordon (Williamsville, NY USA)
I had previously owned and lost an eTrex Legend Cx. This is a giant leap forward. Garmin advertises this as their new entry level unit, but its 800 MB internal memory holds all of the topo and street maps for the eastern US. The inability to do street routing without first buying City Navigator® North America NT seems to be an artificial limitation.
The lock in is almost instant when I turn it back on at the same location that I turned it off, and it can pick up a signal from inside my house. I no longer lose the signal when I go under deep forest cover.
The screen is bright, and better than on my old unit. When I first got it, the compass was not functional, but once I updated the unit online, it worked great.
I wholeheartedly recommend this unit.
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