what you need to know about GPS antenna

Notes Editor

1.GPS antenna is not 100% position, but do not believe the nonsense indoor positioning, GPS Broadcast unlike phone, anywhere can receive the signals, many things can affect gps recipient, including Sky satellite distribution, buildings, viaducts, waves, leaves , insulation paper, things will be affected too much, in general, from gps location to the point of view, you can see the sky area, it is able to receive signals gps area.
2. Do not use one or two, or a day or two, it was decided gps is good or bad - because the Sky satellite states are different every day, maybe the same place, in the morning recipient cell, but can not locate the evening, there may also be For several days the situation is not good positioning.
3. Compare the gps is good or bad, must be the same comparison - Many people buy a new gps, will say that I used before sinking a better kind of thing, but to say, but not correct, because the use of different time and place, and finally The result is much worse, must long-term use, or simultaneously with, the ability to feel two kinds of gps differences.
4.GPS reception strength meter, has been insufficient to buy a GPS reference - we buy gps, just look at the electronic map in the recipient list, may have previously quite accurate, but now the gps, to let the recipient see table good-looking, so there are false signals, or simulation of the signal and so on, the recipient list is indeed very beautiful, but perhaps positioning allowed, even not necessarily not display correctly.
5. There is no so-called indoor location gps- indoor no signal is substantially no signal, the real indoor positioning, starting from cold start in the room, but you can locate, real indoor location, but basically indoor positioning make sense No, because I'm not at home to navigate.
6. purchase gps, do not need to label as a purchase option, but you can choose to use the chip - basically, do a lot of gps manufacturer, vendor selection only consider service only, the recipient is not necessarily the best manufacturers, Generally say the same chip gps, different manufacturers do, the effect will not be much difference, so choose gps not selected brand, you can choose gps receiver chip.
7. in the end to use Bluetooth, CF gps, or gps mouse -? In general, this is a matter of debate, using Bluetooth or CF, gps or pda have to worry about no electricity problem at any time, and expensive, but you can always Navigate anywhere, using gps mouse is affordable and good reception, do not worry about the power problem, but cable problems.
8. The positioning allowed, is not necessarily the fault of GPS - positioning error can substantially less than 20 meters, are regarded as a good gps, the other, gps location is not very accurate in the way, may be many reasons, bad reception may cause error, it may be a problem with the map data, there may be road is very wide, so it looks like gps stable offset pavement, with a long time you know a gps or map issue.
9. buy gps, spec sheet for complete specifications of what a few seconds in the reference -gps locate what few meters error, sensitivity and so forth, these are written nice to really use to know, really, compare specifications Table is a waste of time. 10. Using the GPS, do not close communication costs - although we all know, but still it was always thought to collect additional monthly fees.
11. When the store say xxx gps bad, I do not believe - is that the stores may not sell, stock or another thing more, we recommend that you buy the other a gps. 12.GPS able to put the car to put the car - in addition to an external antenna, gps mouse like this kind of thing, to put the car to put the car, because although there are waterproof gps, but long on the outside, it is inevitable there will be hanging time points, but also to receive on and off to take away, but will be dry on the outside to go Oh, it is recommended to carefully choose grid thermal paper or thermal paper cut a hole in the cell, paste else looks not ugly.
13. If you bought a new GPS is the first time, or have a cold start state, go to the open area outside the vehicle fixed-point positioning - As a positioning speed faster, and less likely to have some strange phenomenon, if under cold start conditions directly on the road, even if the signal is very strong, but it may to your destination can not locate Oh !! This point is very important, positioning exhausted, and then put the car to see the recipient will compare car poor, in addition to single-gps longer time, longer time satellite data can be saved, if the long-term need, such as a ~ two weeks, gps cold start may be restored to the state. These are new to satellite navigation for you, want to have these psychological preparation, does not feel it is more difficult to use satellite navigation, basically, as long as the destination, satellite navigation for you is good with things , as there is no comparison time, there is no relatively short distance, are not asking for too much, basically to a strange place, as long as smoothly to the ground like, maybe there will be some ridiculous journey planning and more Some way to go, but over time, you'll understand the characteristics of the existing satellite navigation, using them will not be so unhappy, of course, map makers still need to be hard, but I hope we can give vendors appropriate incentives, to buy genuine is the best support