Q:In addition to the parameters, that is the problem of the machine, what method can reduce the error of these two machines to a minimum. Because, at the same time to find a coordinate. The gap is too big.

GPS was in error with 10 meters, with the star search results, related to the environment, if the precision is high, as long as the use of handheld GPS submeter or handheld RTK

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

I am a professional to do GPS, the difference between the professional handheld and mobile GPS is very understanding, here and your simple communication.1, GPS is the most important positioning accuracy and confidence. Professional handheld GPS chip used to stabilize the performance of some, the accuracy will be better, such as Garmin handheld high-end product positioning can be achieved within 3 meters, while the phone's GPS chip is different.2, both in the design and positioning of the crowd is very different. Professional GPS more focus on outdoor industry and users, the use of design idea is how to better outdoors, outdoor tourism including tourism exploration assistant very full function, and mobile phone GPS is a trend not only, what purpose.

Q:What factors affect the handheld GPS receive signal?

The hand-held GPS is generally accepted the satellite signal, a sheltered place will affect the signal delivery in different range of handset with method, sometimes, because of the incorrect operation, the human body is one of the obstacles

Q:Ask how to select a google satellite map into a handheld Area GPS

If it refers to a professional portable handheld GPS, please ignore this answer.

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

Hello friends, so, do 1:2000 topographic mapping with a handheld GPS is obviously not reality, after all, the handheld GPS precision is, however, now we are in the handheld equipment is no GPS, in fact, in the absence of the base station is a handheld GPS, receiving SBAS difference can reach sub meter level, but if a base station or receive CROS network differential signal will be RTK mobile station,

Q:Mobile GPS can replace professional handheld GPS

No, professional signal and positioning more accurate,Walk along the plots in a circle can measure the size and graphics trajectory, 550 yuan, USB charging, large capacity lithium battery, black and white screen to see the clear day for outdoor use.

Q:How about the accuracy of the GPS handset?

zhonghaida Qmini series: 3 meters; zhonghaida Qcool series: 5 meters; precision and price is proportional to the precision is higher, the higher the price.

Q:I just bought a handheld GPS Magellan No. 1, showing the latitude and longitude coordinates, I want to set the geodetic coordinates of latitude and longitude, do not know where to set, I would like to ask you, how to set, there is a better picture shows the best, thank you so much.Magellan GPS 210 is not 2000 shy

2 map reference setting: [[map] - unit "benchmark is set to User, and input the DX, DY, DZ, DA, DF parameters, usually DX, DY, DZ vary from region to region, so need to know the high level control points to solve, solving methods are as follows:The handheld GPS is placed in the control point field buried pile, were measured, and then hand coordinate coordinates and the known control points of the GPS measurements obtained for the poor, can be obtained by local coordinates and elevation deviation value: DX, DY, DZ.

Q:Highway measurement with GPS I do not know which of the base station settings and mobile station settings I are very vague, to the instrument to build a coordinate system how to build the relevant issues to me

Application of GPS in Highway SurveyHighway routes are generally in a ribbon corridor. It is often used in the plane control measurement, which includes the form of wire, closed wire, wire and so on. For important structures such as bridges, bridges, tunnels, etc., but also arranged into triangular network, linear lock and other forms.

Q:GPS Mu meter which brand is good, handheld high-precision land area measuring instrument

A German born mu can also recommend a good precision measuring instrument.