GPS Mapping Software Review: Earthmate GPS BT-20 2010 by DeLorme US Software
|3 stars, 1 review|
Manufacturer: DeLorme US Software
Platform: Windows Vista, Windows XP
Good But Not GreatI have owned many GPS devices. Including several Delorme products. This one is like many of the other Delorme products. It works as advertised however it has its downfalls. One the maps are not as current as its competitors. TeleAtlas maps on my MIO C520 were more complete than the maps here and are a year older. The receiver sensitivity is not up to par with current technology. It uses a sirf star II chip witch means that it can only acquire 12 satellites and only has a sensitivity of -80dbm.
Compare this with the sirf star III with a 20 satellite acquisition at -159dbm sensitivity. For me this means that if it gets cloudy (not raining just cloudy) my GPS signal goes away. compared to my other GPS units this is un-acceptable. even my USB Delorme GPS Earthmate (v 1.0) had better signal strength.
I purchased this unit for $99 plus shipping and as far as I am concerned it was a waste of my money. You can get a far superior Bluetooth GPS for much less cost. I am currently looking at purchasing the i-Blue 821 which touts 51 channel satellite acquisition and -158dbm signal strength. 18 hour continued use battery and a auto power on off solution. All of this and for only $60.
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