Map Scale Compass DC45-6A with Ruler System 1

Map Scale Compass DC45-6A with Ruler

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: -

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Product details

Model: DC45-6A

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: 122*64*22 (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.

Payment term: TT/ LC

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: Two, different hardware configurationAs the field work environment is relatively poor, so waterproof, dustproof, shockproof for handheld GPS is very necessary. Handheld GPS on the market level of water is generally IPX7, and the continuous use of time is often more than 10 hours. Mobile phones are not so much demand. Handheld GPS function is relatively simple, and even most of the products are still grayscale display screen, multimedia features almost No.In the chip, there is not much difference between the GPS and GPS handheld mobile phone, mobile phone is commonly used in the Samsung 2440 chip and SIRF III receiving module on the handset is also very common, but in recent years MSTAR from Taiwan due to its advantages of cheap, very popular in the low-end handset.

Q: I am a handheld GPS precision is low, how to use to be able to improve certain accuracy.: If you can join the CORS network, the accuracy of decimeter to centimeter level.

Q: Jia Ming etre20 handheld GPS good: The new generation of the eTrex series is the first generation of user level receivers that can track both GPS and GLONASS satellites. GLONASS global navigation satellite system developed by Russian Federation, fully put into use. When using the GLONASS satellite, the average time for the receiver to lock the target is about 20% faster than GPS. And, when using both GPS and GLONASS, the receiver has the ability to lock more than 24 satellites as compared to GPS alone.

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: Welcome to make comments on the existing GPS tour pal what shortcomings to answer the more detailed the better: Fifth elements: the terrain map is the main project of outdoor sports climbing, mountain climbing is very exhausting, we usually do a plan will be completed on schedule, a good plan should be to our destination in the manual run out before. And if you want to do this, it must be on the road difficult to have a correct anticipation. But this time, with the terrain map GPS can come in handy, the mountains and the altitude of the understanding, we need to know about these sections spend much time and energy. And the general GPS map, is unable to meet the needs. So we'd better buy a map with contour terrain data of professional grade GPS, make your own outdoor journey do in our hands.

Q: How to use the handheld GPS whole watershed investigation: Therefore, it is an important method to solve the maximum value in physics by solving the maximum and minimum values of the physical quantity by the critical state.

Q: What do you need to test for GPS?: 6 antenna type to give you a good positioning, GPS receiver requires at least 3 ~ 5 satellites are visible. If you are in a canyon or on both sides of the street, or in the dense jungle, you may not be able to contact with enough satellites, so that you can not locate or only two-dimensional coordinates. Also, if you're in a building inside, you may not be able to update your location, some GPS receivers have a separate antenna can be attached to the windshield, or built-in active antenna, or an external active antenna can be placed on the roof, the receiver which helps you get more satellite signals the. 7 other indicators to buy GPS equipment, according to the needs and use of the environment, size, weight, waterproof, shockproof, dustproof performance, high temperature resistance, power consumption and other indicators should be taken into account.

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