Q:What is the difference between professional GPS handsets and mobile navigation?

GPS is the most important positioning accuracy. Professional handheld machine with industrial design. First of all, if used outdoors, then fell, and so on are likely to water, and this thing is also very expensive, so the opportunity to have a high professional anti shock waterproof performance.

Q:What factors affect the handheld GPS receive signal?

The United States Department of defense. A SA satellite signal to interference (the U.S. government for consideration of security of civil code of a called "selective availability (Selective SA Availability)" interference, to ensure the best protection system is effective. Because of the random error information added by SA in the navigation message, the positioning accuracy of the civil signal C/A code is reduced to about 100 meters. However, the use of differential GPS technology, the system error can be reduced to 10 to 15 metersTwo. Weather factors (including sunspots, bad weather, etc.) to reduce the intensity of the received signalThree. In buildings, vehicles, insulation paper, or metal shielding, GPS signal will be reduced or completely lost signal. In open spaces, GPS devices receive the best signal. .

Q:Handheld GPS how to achieve decimeter

Look at the handheld chip, and some can be directly achieved, some with differential signals to

Q:What is the difference between professional navigation and professional GPS navigator

5 price of less than 3000 yuan.> 4, 5 a answer: there are PDAGPS mobile phone development, but should be more than 6000. One of the PDAGPS generally above 3000, generally have more than 3000 car navigation. If you have Bluetooth support PDA or PDA phone, plus a Bluetooth GPS is as long as 1000 or so. So the first three choices and then you have only the following three choices: first, the new machine but the older models, businesses dumped, and the other is to know the people, and the three is a vintage.More well-known brands in the market: Taiwan (MIO), the new branch, Taiwan HOLUX long days, GARMIN, HP, etc.PDAGPS mobile phone: MIO A700, E, TATO588, HP6515PDAGPS development: MIO168, 169, 269, P350, HOLUX PolarisVehicle navigation: MIO C210, new section four or five, GARMIN three or four

Q:Saying that we have a project in front of it is to do so, it is surprising that there are wood

It is really unexpected, basically not, the accuracy is not enough!

Q:What is the difference between the phone's GPS and professional handheld GPS features and differences?

With more professional and more accurate positioning but are generally used dry batteries or rechargeable batteries not built-in rechargeable battery that is because handheld GPS users are mostly investigation or walk tourists convenient in use and emphasizes there is screen are generally of low power consumption for general color screen can only convey longitude and altitude mobile phone GPS is just a subsidiary function loading car navigation map

Q:How do I still stay in the GPS navigation, GPS monitoring of the primary idea? FiveBusiness services, thank you!Future business services

6 people travel and adventure7 personal communication terminal (with mobile phones, PDA, electronic map integration)8 time synchronization of electric power, post and telecommunication9 accurate timing of admission10 accurate frequency of admission

Q:Hand held GPS coordinate conversion method

Two. To coordinate the coordinate data of the control points obtained provide technical support unit of Beijing Unistrong companies around the branch responsible person to calculate the coordinate transformation parameters conversion parameters, or to obtain their own conversion conversion software. After the conversion parameters are calculated by the prompt input handheld GPS. Only after such a setup, after all the soil in the region when the coordinates of the GPS read out the coordinates of the point for the Beijing 54 coordinates.

Q:I am a handheld GPS precision is low, how to use to be able to improve certain accuracy

Look at the maximum accuracy of GPSIf the difference accuracy can reach 1cm you can connect CORS single base station and other network RTK way to achieve the corresponding accuracy

Q:Handheld GPS and mobile phone GPS what is the difference?

The same: GPS main chip may be the same; can complete the GPS positioning;