Q:What is GPS Mu meter ah, with the general said that the GPS measuring instrument what is the difference?

GPS Mu meter also known as land area measuring instrument, handheld meter meter, etc.. Integrated computational methods for understanding and intelligent high precision GPS positioning system, the precise area of the handheld computer system, can realize the irregular area of real-time measurement and dynamic graphical display and intelligent data processing and storage.GPS measurement of the meter is different from the general GPS measuring instrument is based on the latitude and longitude of its area calculation function, general GPS is generally used for positioning.

Q:I would like to ask the GPS handset and GPS receiver (Surveying and mapping qualification application needs) is there a difference? If yes, what is the difference?

1. GPS is a geodetic instrument, with an accuracy of CM, generally for the millimeter,,Divided into (1) pure static type, such as the South Star of the North Star, the accuracy of mm, now the basic domestic,,(2) RTK, RTK can do is use, carrier phase measurement, the precision is cm level, RTK mobile station must have the control hand book, like television and remote similar, but now there are a lot of hand book can be used as handset2. The handset is generally rough field positioning equipment, navigation for mobile phone use, the general size, precision grade m, now can to about 20cm, and can be used for RTK mobile station use (need to access the base station) can reach cm level.Surveying and mapping qualification applications require geodetic measurement equipment, that is, 1.Now domestic GPS, such as the Haida, the south, China, etc. can be measured, not expensive

Q:Handheld GPS brand rankings

SIBAOIn the GNSS coordinate precision and attributes, "SIBAO" has a professional GPS handset, GIS i-PPP GIS, a mobile data collector, GIS, high precision GIS, high precision measurement of RTK complete product structure, to form a comprehensive solution to the spatial information industry scheme.

Q:Handheld GPS buried in the soil there is a signal

It depends on how deep you buried the darker the GPS signal, and must ensure that the GPS antenna upward, the above can not be covered with metal objects

Q:My friend is in use, the difference is not big, professional handset (smart or Magellan bulky, but 3 case), but the price is expensive, but can not call and map is very rotten, endurance of 10 hours (dry battery) the mobile phone also has all the time. Know friends say, I mainly in the suburbs! Thanks

Three, the map of the differenceIn terms of the difference between the two maps is relatively large, most of the hand-held machine using contour map, the city is only as a secondary auxiliary. The mobile map is just the opposite, very detailed description of the city streets.Refer toThere is no road for GPS routing calculation. Popular said, handheld GPS to do is to draw a straight line to the destination, to determine their own inflection point. Handheld GPS will tell you to the destination: distance, course, yaw distance and other information (a lot of parameters, you can choose to display). In addition, handheld GPS also has to add a new landmark, through the software to draw their own waypoints, the average position of the measurement function, and even can measure the height and temperature, highlighting the degree of professionalism of its application.Cell phone navigation is very different from the former. GPS will be in accordance with the routing algorithm to calculate the nearest path, the premise is to have a detailed street map. GPS will tell you the right to turn right at the intersection. Mobile GPS can also search the starting point near the point of interest information, and can calculate the fastest path to reach the land.

Q:Handheld GPS purchaseHandheld GPS navigator!Is mainly used for tourism, I said is not a mobile phone, is a more professional handheld GPS navigator for travel outside! Handheld GPS navigator can voice navigation?

Many outdoor enthusiasts are used to this, hiking, cycling and other applications are relatively wide, is an American brand, Mr Zelen back to U.S. Army GPS, and as Ma Ying-Jeou ring when riding on the handlebars also put a good 60CSX. the two brands in the nature, the price is more expensive, are in more than 2000, but the best is to the store to buy. If only for tourism, generally hundreds of pieces of GPS will be enough, go to computer city to see, must be sold, or go to your city in the outdoor store to see.

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:Handheld GPS which brand is good

Now GPS can also do handheld measurement accuracy, precision can usually reach decimeter level, the industry there are relatively well-known Huace, professional GPS measurement instrument, high precision of handheld GPS the good.

Q:Jia Ming etre20 handheld GPS good

Jia Ming eTrex 20 has a microSD card slot and 1.7GB built-in memory space eTrex 20 allows you to store more user acquisition information, in addition to the map expansion slot, you can load the map of the global area of Garmin.

Q:Fuxin coordinates with the mapping of the seven parameters are what ah there is no professional knowledge to tell my brother I need to fill the gps... Thanks.

XYZ offset, XYZ twist, 6, plus a scaling factor.Seven parameters have to be calculated, or from the local surveying and mapping departments to.