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Earthmate GPS BT-20 is a single GPS solution for your large-screen laptop PC or your handheld PDA or touch-screen phone.Positioning System (GPS). Earthmate and a laptop PC will show your location on detailed Street Atlas USA Deluxe maps (available as a bundle). An arrow shows your position in real time on street-level maps, so you always know where you are and where you need to be.Earthmate has been developed in partnership with Rockwell/Conexant, the company that pioneered GPS satellite technology. This means you get faster satellite acquisition times and outstanding performance specifically designed to maximize the unique capabilities of award-winning Street Atlas USA and other DeLorme software.Earthmate features a durable housing with a moisture-resistant seal and is designed to withstand a wide variety of road conditions. Unlike many other GPS receivers, Earthmate can be powered by four AAA batteries. This is especially important when using Earthmate with handheld or laptop computers in a car where available power is already being used.
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Technical Details
- Wireless connectivity for your Bluetooth-enabled laptop PC, PDA, or touch-screen phone with Palm OS or Windows Mobile; also connects to laptop PCs via USB- GPS voice navigation with fast satellite acquisition
- Slim, compact size - outside dimensions are smaller than a business card
- 3-way power options; lithium-ion battery with A/C charger; 12-volt in-car charger, and 3' USB cable to power device from your laptop PC
- Import and map your own Excel, ACT! and other database files, creating optimized routes with multiple stops
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By RIK (Bay Area, CA)
I was tempted to switch from Microsoft Streets and Trips because Microsoft used to ship with a GPS receiver which due to its poor design broke for me. BT-20 was the only laptop navigation software with a GPS receiver which supported both Bluetooth and USB. However the software just plain sucks.
i) The routing engine is pathetic. It doesn't honor specified road preferences. Neither does it seem to differentiate quickest from shortest. Compared to Street and Trips it consistently chose the suboptimal route, preferring Forest Roads and Unpaved Roads even when told explicitly to avoid them.
ii) Disabling screen saver would have been a very useful option but it doesn't work.
iii) Route recalculation threshold doesn't work either. If I just switch lanes on a highway it thinks I'm "Off Route" and starts recalculating (even with the recalculation threshold set to highest 500ft).
iv) The software doesn't understand the concept of one way lanes and keeps recommending travel in the wrong direction on a one way street.
v) Maps and routes are a lot harder to visualize than Street and Trips
vi) Spoken names feature can't pronounce difficult street names
vii) When GPS is on you can't permanently change zoom level
viii) Finding an address without a zipcode is very slow and with a zipcode requires too many clicks.
ix) Point of Interest list seems poor compared to Street and Trips (which I always thought was old).
x) I have seen initial satellite lock times to be longer than advertised 10 minutes.
Even though I used Street and Trips for years I wasn't particularly a fan of it and kept hoping Microsoft would have a credible competitor in this space but Delorme's software makes me think that Street and Trips guys actually did a decent job.
To Delorme's credit they do have Voice commands (which I haven't tried) and I like their zoom out using the mouse option as well as the overview available when routing using GPS in 2D. Regardless of the good points/intent it should be illegal to sell such buggy software !
By Dan Barnett
This products is difficult to use. The maps are fine, but if you want to change the route, you have to pick multiple points along the new route to force the mapping software into compliance. It seems to be stuck on its original route regardless of how many back tracks it has to make.
Also, the gps is very insensitive. The first time I used it, sitting at home by a south-facing window, it locked in after about 15 minutes. On a recent trip to Houston, it never locked in to the satellite array. MS Streets and Trips 2007 locked in fine but had outdated maps.
I wouldn't buy it again.
By MikeC
I very much like the DeLorme Earthmate® BT-20, but I can't say the same for the DeLorme Street Atlas USA® 2009 software.
The DeLorme Earthmate® BT-20 works like a charm, both USB connected and Bluetooth connected.
Via Bluetooth, it's a serial port ("virtual COM port") device.
Via USB, I'm using the "DeLorme Serial Emulation Driver for Earthmate® GPS Receivers" with it (http://www.delorme.com/support/supporttemplate.aspx?id=319). Hence, via USB, it's also a serial port ("virtual COM port") device.
It's working very well for me with the DeLorme Street Atlas USA® 2009 software and also with other software that communicates with a GPS device via a serial port.
Vis-a-vis the DeLorme Street Atlas USA® 2009 software, I like the look and feel of the user interface and I don't have any trouble using it. Features and functions wise, it's great. But, for me at least, the map data is useless. In my neck of the woods (Seminole County in central Florida), its map data is egregiously riddled with errors and omissions: many roads are missing, many roads are incorrectly named/labeled, and many points of interest are misplaced. In the DeLorme Forums, there are user comments that the same is true elsewhere around the country.
By Harold N. Jones (Northern California)
The gps is quick at getting a lock on the satilites, I am still getting use to the software for routing. I use it on a netbook computer and the 3d is too much for the computer, but the 2d works fine.
Harold Jones
By John B. Bolton III (Cloudland, Georgia)
I have the GPS BT-20 on my Delorme Handheld and my Sony laptop. It works great for me in the car, the plane and in the woods. I even use it fishing and set waypoints to get back to the most productive fishing spots.
The laptop gives me voice command functions and I can even set up GPS approaches for "out in the sticks" airfields which beats the old VOR approaches. (altitude readouts and all...) FAA says its not legal for instrument approaches but is great for a simple "glass cockpit" upgrade for the old Cessna 172.
If you take the time to read the instructions, its simple and easy to use. Also, there is even a Delorme support group on the web and you can set it up to tell you when there are updates. Also, Delorme support is 100% USA... they speak English and will work with you until resolved. I use both their Topo 7.0 and their Street Atlas Program. It beats Google Map every way.
John
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