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FAQ

Handheld GPS how to achieve decimeter

Hello A GPS is not up to the requirements of the class, if no one can buy that expensive submeter GPS, currently on the market with the best precision is GPS, is Derek GARMIN this year a new eTrex 10, 20 and 30, the three can be reached within 3 meters accuracy, you can look at

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

How to hand GPS eTrex H data to the computer

"Shaanxi skmax navigation information Limited" GARMIN proxy (GARMIN official website can be found), contact (Xiao Hou) the hope can help to you, if you do not understand what we see on the Internet, may at any time, contact us!

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.

What do you need to test for GPS?

5.DGPS you know, differential GPS (DGPS) positioning accuracy is very high, some GPS equipment providers set up a DGPS transmitter in some areas, free of charge to its customers, if customers are buying GPS receivers with DGPS function. The DGPS transmitter is a fixed GPS receiver (in a 100km ~ 200km exploration scene in the radius setting) receive satellite signals, it knows exactly what is the exact time of transmitting satellite signal to the theory, and then compare it with the actual delivery time, then calculate the "difference", influence this is very close to the atmospheric refraction, it will send out the difference, usually with FM (FM) radio data transmission using subcarrier modulation signal in the baseband receiver, GPS and DGPS function can receive and use it more accurate positioning.

Magellan GPS handheld why so many people choose not to say that the map is not good

Magellan navigation and positioning company with Taiwan Jia Ming Company as the world's leading outdoor handheld GPS, its product features have their own advantages. General Magellan price will be slightly higher, Derek source may be more, but in recent years, the 2 brands will be on a par with slowly, Magellan with the national topographic map, a detailed map of the vehicle with the navigation package, Derek product price has been lowered. If the old section of the handheld GPS feel Magellan's design is more fashionable, the new Magellan with better Ming products have their own characteristics, mainly to see their own habits and tastes.

What qualifications should a normal GPS locator have?

Look at his company's business license is what's on the line, if the manufacturer has the most basic 3C proved, and some such as system certification or proof of what the explosion proof CEPREI

Handheld GPS locator measuring accuracy is about how many meters?

The handheld machine precision is generally divided into: centimeter decimeter level, 1 meters, 2 meters, 3 meters, 5 meters;