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GPS --- is it useful? [複製鏈接]

agnes65511

複式洋房

積分: 128

1^#

發表於 04-8-24 05:15 |只看該作者

GPS --- is it useful?

My husband is considering buying a PDA with GPS installed inside, he thinks the GPS can help him locate places more easily & quickly while he is driving, but I wonder if it's really useful or not! Please give me some comment about it, thank you very much!

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mingb

大宅

積分: 1093

2^#

發表於 04-8-24 09:27 |只看該作者

Re: GPS --- is it useful?

定位系統在香港發展不大, 因為太多高樓大廈遮擋, 接收唔好, 同埋香港咁細, 唔使佢講都知o係邊, 但一套叫"路捷"既汽車防盜追蹤, 好似係用上定位系統的.

有錯請更正

我個仔好得意架

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agnespa

洋房

積分: 55

3^#

發表於 04-8-24 11:50 |只看該作者

Re: GPS --- is it useful?

GPS not GPRS!
PDA with GPS needs to initially locate with the 12 satelittes, it needs about 1 minute and stop in an open area to do so. After initilisation, it can be located with moving car.
If the car location is surrounded by high buildings, it cannot be located.