Q:What is the difference between industrial GPS handset and mobile navigation

3, 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.4, different screen design. If you look carefully, you can see in the outdoor light, mobile phone can not see the contents of the screen, while the professional handset is not the same, can see clearly in bright light, does not affect the work of foreign trade operations.

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:Can you buy a good handheld GPS in China? FiveTrouble master recommended several professional handheld GPS brand, in addition to handheld GPS can speed it? Thank you!!

The main function is to use navigation as long as the navigation function can be used

Q:How to set the handheld GPS related parameters and coordinate conversion parameters throughout the country

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: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:Handheld GPS navigation is what? Where to buy handheld GPS navigation, how to select GPS navigation?

Handheld GPS is mainly for GIS data acquisition, a lot of advanced GPS with PDA function, you can load navigation software for vehicle navigationBut the handheld GPS is mainly to do some engineering design, the main area can be measured, the location, and the boundary survey. GPS can do advanced vehicle navigation can also waypoint navigation, is a coordinate input to precise navigation to this position.Handheld GPS navigation is divided into 2 kinds, one is portable GPS navigation, one is used for surveying and mapping professional GPS handheld

Q:Handheld GPS each brand has what difference; different price difference in where is the positioning accuracy is different or what function is not the same?What are the differences between the measurements and the cars?

Engage in measurement and what is the difference between the car I do not know, look at the car to see if the functionSMS + Mobile Internet + computer network platform! 3 ways to check the car!

Q:My cell phone: HTC Hero 200Question type: Internet softwareMy work needs to locate, record, output, and input GPS coordinates. Track record measurement, coordinate transformation. So would you have a professional security software under the table, so go out with a mobile phone or a PAD, or N equipment back to survey the tired,

Taobao to enter the online shopping, mobile phone navigator on the line, I suggest you download the Careland navigation map, or tiger map

Q:Handheld GPS need to put the phone card?

Travel GPS professional solutions:Put card. Will be equipped with a card at the time of purchase.

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

Different: antenna size, function, accuracy, protection level, and has been different in the application layer (handheld GPS support GPS compass navigation and map navigation and other more professional GPS applications);