• Transparant Map Scale Compass DC45-5D System 1
  • Transparant Map Scale Compass DC45-5D System 2
  • Transparant Map Scale Compass DC45-5D System 3
Transparant Map Scale Compass DC45-5D

Transparant Map Scale Compass DC45-5D

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Product details

Model: DC45-5D

Name: Professional map compass, ruler compass

Product Origin: China

Supply Ability: 10,000 pcs/month

Minimum Order: 50 pcs

MOQ for OEM package: 500pcs

Product Size: 140*61*17 (mm)

Color: OEM

Features

1, professional usage: orientation, distance measuring, measuring slope, azimuth and pitching Angle measurement, drawing, a magnifying glass

2, high quality compass with neck rope, portable and rugged
3, ACRYLIC material, about 2mm thick
4, Damping Dial: to keep the stability of the pointer, more suitable for outdoor

environment.
5, Accuracy: accurate and clear, there were 360 degrees azimuth Angle, outer ring is 64-00 system, Liquid filled in the compass for reliable readings.

6, Magnifier function

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: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
Design ideas and the use of different objectsThe handheld is designed for military, mapping, mining, agriculture, outdoor sports (hiking, hiking, orienteering, cycling, water sports, paragliding, etc.).Cell phone navigation is designed to drive a car in the city, built-in interest points are mostly concentrated in the city.
Q:How to set the handheld GPS related parameters and coordinate conversion parameters throughout the country
Three parameter test DX, DY, DZ, DA, DF after the conversion parameters of the five, must be prompted to enter the handheld GPS, while the input area of the central meridian longitude. E on behalf of the east longitude, projection ratio of 1, the deviation of things to the north and south of the deviation of 0, and set the unit for M. Enter these parameters, should be taken to the field test, check whether these five parameters are correct. The method is selected, vision, GPS receiving signal strength of the feature points in the field (such as linear object intersections, independent features, etc.) is the best stone control points were measured and compared with theory and find out the coordinates of these points. If the results of the comparison exceed the nominal accuracy of the instrument, the conversion parameters or the problems that should be found should be recalculated.
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:How do I still stay in the GPS navigation, GPS monitoring of the primary idea? FiveBusiness services, thank you!Future business services
Mainly for the ship, automobile, aircraft and other moving objects positioning navigation. For example:1 ocean navigation and incoming water diversion2 aircraft route guidance and approach landing3 vehicle autonomous navigation4 ground vehicle tracking and urban intelligent traffic management5 emergency rescue
Q:Is it accurate to measure highway mileage with GPS handheld
Measuring mileage, since the unit has been upgraded to the inside, it is quite accurate oh
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:What is the difference between a hand-held GPS and a car's onboard navigator
Effect of GPS navigation handheld as vehicle, as the vehicle with what map, the hand-held GPS is mainly used for point positioning, measuring area, high precision, good anti 3, my understanding is that
Q:Handheld GPS charge is not into electricity what is the reason
Two, solutions:1, for other chargers, or data lines try, or clean the charging port.2, boot into recover mode advancsd advanced mode, select the wipe Battery, remove battery traces.
Q:Magellan GPS handheld why so many people choose not to say that the map is not good
Outdoor use three times a year also on the trip, but also want to use both sides can be used to the best, so these are the best of the two Ming and Magellan did not know that the election of the good, but I am willing to build businesses with the best Ming of the 450.Chasing the answerIf only in the city with less than 610510 can be upgraded Magellan navigation, 610 more than and 510 three axis electronic compass if you don't like the original forest does not receive any signal where there is no whatTake a look at yourself

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