You've heard that new sport, geocaching, is fun. 你听说新的体育运动, geocaching ,乐趣无穷。 Or, you're tired of getting lost on your travels. 或者,你感到厌倦,越来越失去了对你的旅游地点。 Welcome to the 21st century. 欢迎到二十一世纪。 Global Postioning System (GPS) has been around long enough that prices are reasonable and the technology is user-friendly. 全球postioning系统(全球定位系统)已经够长,价格合理,而且该技术简便易行。 With myriad brands and models, how to choose? 与众多品牌和型号,如何选择?
If you want a GPS for both hiking and driving use, then a handheld unit would be the way to go.如果你希望有一个全球定位系统,为远足及驾驶使用,然后手持股将是一条出路。 Some handhelds even have accessories to allow them to be installed in an automobile.有些掌上电脑,甚至有配件,让他们可以被安装在汽车的。 But don't rule out a PDA.但不排除一台pda 。 More on that in a moment.更多关于在一个时刻。 For driving only, there are GPS receivers made just for vehicle use.驾驶只,有全球定位系统接收器只为汽车使用。
Handheld GPS receivers are either mapping or non--mapping.掌上型全球定位系统接收器都是测绘或非-测绘。 A basic, non--mapping unit can often cost less than $100 US and usually has/displays the following:一个基本的,非-测绘单位往往能成本低于1 00美元的美国和通常有/显示器如下:
- Location地点
- Compass heading罗盘标题
- Elevation above sea level海拔
- Accurate time准确时间
- Satellite location and signal strength卫星定位及信号强度
- The ability to calculate distance traveled能力计算,旅行的距离
- The ability to record your path as a set of waypoints能够记录你的道路,作为一套waypoints
- The ability to navigate routes能力航行路线
- The ability to retrace your steps能力回调,你的步骤
Handheld mapping receivers do all the above plus have the ability to display maps.掌上电脑绘图接收所有上述加上有能力显示地图。 The maps are either pre--loaded or uploaded from your PC.地图要么预-装货或上传从你的电脑。 Prices are reasonable for mapping units, starting at around $150 US.价格是合理的测绘单位,开始对大约150美元的美国。
Paper maps are strongly recommended whether you're using a mapping receiver or not.纸质地图都强烈建议不管你是用一个映射接收机或不是。 Paper maps do not require batteries and probably won't go defective.纸质地图不需要电池及大概不致损坏。 Also, a paper map gives you a "big picture" view of your situation -- something lacking on the small screen of a GPS.同时,一纸地图给你一个"大图画"鉴于你的情况-缺乏对小屏幕的一个全球定位系统。
I mentioned earlier your considering a PDA with GPS capability.我刚才提到,你考虑掌上电脑与全球定位系统的能力。 A PDA is bulkier and the battery life is usually shorter, but if you're using a PDA anyway, then there are several ways to turn a PDA into a GPS.掌上电脑是体积和电池寿命通常较短,但如果你正在使用一台pda无论如何,当时有几种方法,把掌上电脑成为一个全球定位系统。 Some PDAs accept a GPS "sleeve."有些掌上电脑接受了一个全球定位系统"袖" 。 That is a device that the PDA nestles into.这是一个装置,其pda nestles成。 Another choice is one of Garmin's PDAs.另一种选择是一个garmin的的掌上电脑。 Garmin is probably the most popular GPS maker and they have one PDA/GPS that is Palm--based and one that is Pocket PC--based. garmin的可能是最流行的全球定位系统制造商和他们都有一个掌上电脑/全球定位系统是棕榈-基础,而且是掌上电脑-的基础。
Prices for automotive GPS start at around $250 US.价格为汽车gps开始约为250美。 These provide turn--by--turn guidance.这些提供之交--反过来指导。 Spend a little more than that and you get voice guidance.多花一点比你会得到的声音引导。 These are larger than handhelds in order to accommodate a screen large enough to be seen while driving.这些都是大于掌上电脑,以容纳屏幕大到足以看出,虽然驾驶。 They are powered by the car's electrical system and because of this, they can only be used in a vehicle.他们由动力汽车的电气系统,并由于这个原因,他们只能用在一辆汽车内。
Many automobile manufacturers now offer built-in GPS receivers as an option.许多汽车制造商现在提供内置式全球定位系统接收器,作为一种选择。 Because they are built-in, the big advantages are security and aesthetics.因为他们是内置式,大优点是安全和美观。 They are quite a bit more expensive than add-on units and often have fewer options.他们是有相当多一点,比附加功能单位,而且往往有较少的选择。 I've also heard some stories of people having a hard time getting map updates.我也听到一些故事的人,有困难的时候得到更新地图。
A PDA/GPS is a good alternative for automotive use.掌上电脑/全球定位系统是一个很好的替代汽车使用。 Its screen is about the size of an automotive unit, so seeing the display is not a problem.它的屏幕是关于大小的汽车股,所以看到显示是不成问题。 They can also be powered by the car, eliminating battery worries.他们也可在停电时,由汽车,消除电池的担忧。 The Garmin PDAs mentioned above both come with the hardware and software for automotive use.该garmin的掌上电脑上述两款都内建的硬件和软件,汽车使用。
If you're hiking, a basic handheld unit (without maps) will be fine since you'll always have paper maps with you anyway (you will, won't you?).如果你徒步旅行,一个基本的手持式装置(无地图) ,将予以罚款,因为你将永远有纸质地图与你无论如何(你会不会因为你? ) 。 An advantage to a handheld mapping unit is that they usually have more advanced features than the basic units.优势,以一个手持测绘单位的是,他们往往有更先进的功能比基本单位。 For driving, you have the choice of a handheld, in--car dedicated, or PDA.驾驶,你必须选择一个掌上电脑,在-汽车专用,或掌上电脑。 The handheld does have limited usefulness in a car, as it does not provide turn--by--turn guidance.掌上电脑确有用处不大,在汽车,因为它并没有提供转--反过来指导。 For a more detailed look at how to choose a GPS, click here .为更详细看看如何选择一个全球定位系统,点击这里。
J. Chartwell has developed http://www.maps-gps-info.com/gp.html , which provides practical information on GPS and maps that everyone can use. j. chartwell已发展http://www.maps-gps-info.com/gp.html ,提供实用信息,对全球定位系统和地图,每个人都可以使用。 The website includes product该网站包括有关产品
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