Army Direction Compass DC45-2A

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Specifications

Model: DC45-2A

Name: outdoor hiking or military compass and army compass, metal compass and marching compass in aluminium material

Product Origin: China

Supply Ability: 40,000 pcs/month

Minimum Order: 100 pcs

MOQ for OEM package: 500pcs

Detailed Product Description

Product Size: 80*58*32 (mm)

Color: Black

Material: Aluminium Alloy

Features:

1)Can easily folds to fit in your pocket

2) The compass is highly accurate and features a liquid-damped compass card with a luminous dial that can easily

be read at night, and a standard bezel with two yellow lines at 45 degree angles

3) The compass card has both the standard 0 - 360 degree scale, as well as the 0 - 64Mil scale (one yard at 1,000 yards)

4) The bezel rotates with detents every 3 degrees so you can change the heading reference a known amount without looking at the compass

5) The front sight has a magnifier to simultaneously view the magnetic heading when taking a sight

6) A second magnifier assists in reading the magnetic heading when direct viewing from above

Q: What does GPS mean: Global positioning system (GPS) is a new generation of space satellite navigation and positioning system developed by the United States Army, navy and air force in 70s of this century. Its main purpose is for land, sea and air of the three areas to provide real-time, all-weather and global navigation service, and for the information collection, nuclear monitoring and emergency communication etc. some military purposes, is an important component of the United States to dominate the global strategy. After more than 20 years of experimental research, costing $30 billion, by March 1994, the global coverage of up to 98% of the 24 GPS satellite constellation has been completed.The global positioning system consists of three parts: (1) the ground control part by the master station (responsible for the management and coordination work of the entire ground control systems), ground antennas (to the satellite into a message seeking in the master control station and monitoring station), (automatic data collection and Communication Center) auxiliary system (data transmission); (2) space, which is composed of 24 satellites, distributed in 6 road plane; (3) the user device part, mainly by the GPS receiver and satellite antenna.The main features of the global positioning system: (1) all-weather; (2) global coverage; (3) three dimensional constant speed timing high precision; (4) fast and time-saving high efficiency: (5) the application of a wide range of functions.

Q: is not to buy a GPS to buy a tracking locator to track the target?I'd like to have one on a speed change bicycle: Of course not different, GPS is a kind of positioning, is an American satellite positioning system, tracking via satellite to achieve positioning.

Q: GPS locator useful in the basement?: It should be said that satellite positioning is the network with GPS, GPS satellite positioning with the network software on the map positioningIf the following possibilities can be eliminated.There are several possible:First: GPS interference, tall buildings and hidden indoor, basement will block the satellite, satellite information lost.Second: the mobile communication network is not stable, after the GPS positioning software can not update the map, so the loss of information.

Q: Would like to give a child with a primary school, children carry, I do not know whether it will bring bad results to the child. Please help us to understand this analysis.: You're talking about GPS+GSM or CDMA's personal tracker.The core component is divided into two parts, one is the GPS part, this part of the radiation is very small, almost negligible, because it is pure receiving equipment, like radio.There is a part of the location of the sending part, similar to a short message module, this part of the radiation and the phone almost. Especially in areas where the signal is relatively weak, the transmitter will automatically increase the transmit power.

Q: Principle and application of GPS: Three, the application of GPS in car navigation and traffic managementThree dimensional navigation is the primary function of GPS, aircraft, ships, ground vehicles and pedestrians can use GPS navigation navigation. Vehicle navigation system is a new technology developed on the basis of global positioning system GPS. The vehicle navigation system is composed of GPS navigation, autonomous navigation, microprocessor, vehicle speed sensor, gyro sensor, CD-ROM driver, LCD display. GPS navigation system and electronic map, radio communication network, computer vehicle management information system can be achieved, such as vehicle tracking and traffic management and many other functions.GPS positioning system is not only used for navigation and positioning of missile, spacecraft, is widely used in automobile, ship, aircraft navigation, public security, banking, medical, fire protection, the establishment of monitoring alarm and rescue system with it, the establishment of a modern enterprise logistics management system with it, agriculture, forestry, environmental protection, resource investigation, physical exploration, telecom all cannot do without navigation, especially with the integration of micro satellite navigation receiver, a personal information terminal of various financial communication, computer and GPS in one of the satellite navigation technology applied to the public from professional application, become after communications and Internet IT third new growth points. GPS as the representative of the satellite navigation and positioning industry is attracting more and more attention.

Q: How much is the platform cost per month after the installation of GPS positioning system: Simple to tell you about the composition of the GPS positioning:1, you need to have a GPS locator, which is the hardware device;2, the need for a physical card, this card is mainly through the joint locator card GPRS upload location information in the access position, the IOT cartoon vulgar point is that mobile phone card, but the card is only the flow of things, can not call card;3, to which you can query the GPS positioning platform position, generally show the way through the map display directly installed GPS locator vehicles or personnel location information specific to the longitude and the approximate distance apart of various buildings;The above three is what you want to be established;The general need to spend is to buy the cost of the GPS locator, the United States and the United States card monthly fee, as well as the use of the platform fee; the United States and the United States are generally charged directly to the mobile card or linkage operators;Each GPS positioning platform software card developers are different, like a paper spill GPS locator I use is free, platform services, like car life GPS positioning platform is their own research and development, it is generally free or low; I will give the mobile node per month IOT card monthly, then the original purchase cost locator;But if you do not belong to the locator direct sales or not the manufacturers own research and development, the general charges are relatively expensive, after all the software development business to manufacturers received money, manufacturers or agents, agents and then charge you, this is probably!If it is not their own research and development of the positioning platform, then, if free, then most of the GPS positioning platform is not guaranteed after sale, after all, software developers do not have income, where there are people in vain to maintain the platform!

Q: Why can not locate the vehicle GPS locator: There are several possible:First: signal interference, GPS antenna near the iron or magnetic field.Second: the shelter, tall buildings, mountains and basements will cover the satellite signal.Third: time set, time is not allowed or return interval is too long error.My answer to your help please take ah!

Q: GPS how to find installed: Note that the GPS locator has a side of the lamp to the sky, the air side of this side of the metal is not close to the internal GPS antenna, it also received twenty thousand km outside the satellite signal;

Q: How to design and manufacture of micro GPS tracking locator: 1, definitely need a GPS module2, you can buy in the market, and then according to their own modules to assemble

Q: GPS tracker and GPS detector is not ossessione: The vehicle terminal by the host module, antenna and optional accessories, including host module and antenna constitutes the fundamental part of the vehicle terminal, can realize the basic functions of real-time positioning, detection of longitude and latitude time, moving direction and speed of the host, leaving the data interface, according to the need of external devices and sensors to achieve attachment functional requirements.GPS detector is used to find the installation of the GPS.

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