English 簡体 繁體
首页关于产品联系
 
无线通讯产品高频同轴连接器精密弹簧针POGO连接元件工业级圆型连接器网络通信模组插座线材加工组装
Antenna Type

Rubber Duck Dipole Type

Magnetic & Suck Cap

 Base Extender Type

Omni-directional High
  Gain Antennas

External Magnetic Mount and Suck Cap Antenna Basrs

GPS Antennas
Patch Internal Antennas
Extendable Antennas
 
Antenna Application

无线网络高增益天线

蓝芽无线网络天线

数位电视天线

吸磁盘式天线

笔记型电脑多频段天线

行动电话多频段天线

GSM通讯天线

其他类型应用天线

RFID射频身份辨识天线

主动式GPS天线

Preview

Active GPS Antenna

Active GPS Antenna

    Module

Active GPS & GSM

    Antenna

Active GPS & GSM

    & FM Antenna

 

主动式GPS天线

 

Introduction for GPS History and Application

The Global Positioning System (GPS) is currently the only fully functional Global Navigation Satellite System (GNSS). Utilizing a constellation of at least 24 medium Earth orbit satellites that transmit precise microwave signals, the system enables a GPS receiver to determine its location,

speed and direction.

 

Developed by the United States Department of Defense, it is officially named NAVSTAR GPS (Contrary to popular belief, NAVSTAR is not an acronym for NAVigation Satellite Timing And Ranging, but simply a name given by Mr. John Walsh, a key decision maker when it came to the budget for the GPS program). The satellite constellation is managed by the United States Air Force 50th Space Wing. The cost of maintaining the system is approximately US$750 million per year, including the replacement of aging satellites, and research and development. Despite this fact, GPS is free for civilian use as a public good.

 

 

GPS has become a widely used aid to navigation worldwide, and a useful tool for map-making, land surveying, commerce, and scientific uses. GPS also provides a precise time reference used in many applications including scientific study of earthquakes, and synchronization of telecommunications networks.