Factory GPS Active Antenna with USB/SMA,MCX/SMB Connector

Manufacture GPS Antennas Active Gps Antenna Gps Antenna Usb Antennas Gps

Gaoke ant co.,ltd was building 1993 , our factory in Guangzhou city Guangdong province .

We are a leading manufacture antenna products , including GPS antennas , GLONASS antenna,

WIFI antenna , GSM antenna ,3G antenna ,4G antenna ,PCB antenna ,433mhz antenna,5.8ghz 

antenna,RFID antenna ,high gain antenna , GPS antennas usb, RF cable products and so on .

We have professional R&D team and production deparment , our products have pass CE,FCC,SGS,

TS16949 certificate .

Description

Active GPS dome antenna with 5 meter cable with MMCX connector. The antenna is waterproof, magnetic with double sided tape and is designed to work with a variety of GPS receivers. Center Frequency 1.575 GHz, 50 ohms, 3-5 VDC and a gain of 30 dB at 3.0 volts.

GPS receiving antenna introduce

GPS is through the acceptance of satellite signals, positioning or navigation of the terminal. And accept the signal must use the antenna. GPS satellite signals are divided into L1 and L2, the frequency is 1575.42MHZ and 1228MHZ, where L1 is an open civilian signal, the signal is circular polarization. Signal strength of 166-DBM or so, are relatively weak signal. These features dictate the preparation of a dedicated antenna for the acceptance of GPS signals.

The GPS receive antenna is a sub-part of the clock system signal receiving section for receiving GPS satellite signals. According to the requirements of the clock system, use ZYGPSDA-30 type. ZYGPSDA-30 GPS antenna is a dedicated GPS timing antenna, with a precise phase center, compared with other microstrip antenna design of its advanced circuit can reduce the multi-path effect, excellent sealing performance so that it can work in harsh weather conditions, Rain, antifreeze, anti-shock. ZYGPSDA-30 GPS special antenna through the coaxial cable input power and output RF RF signal, the antenna contains a shielded filter and bipolar amplifier, can reduce the cable length caused by the signal attenuation and other interference sources to introduce interference.

GPS antenna classification 

? from the polarization of the GPS antenna is divided into vertical polarization and circular polarization. With the present technology, the effect of vertical polarization is less than circular polarization. So in addition to special circumstances, GPS antenna will use circular polarization and linear polarization. 

? from the place on the GPS antenna is divided into built-in antenna and external antenna. The location of the antenna is also very important. Early GPS handheld use of external antenna, this time the antenna and the whole internal isolation, EMI almost no impact on it, the star effect is very good. Now with the miniaturization of the trend, GPS antenna built-in use. At this point the antenna must be above all metal devices, the shell must be plated and well grounded, away from EMI interference sources, such as CPU, SDRAM, SD card, crystal, DC / DC. Car GPS applications will become increasingly common. The car's shell, especially the car explosion-proof membrane will be a serious obstacle to the GPS signal. An external antenna with a magnet (which can be attached to the roof) is very necessary for car GPS. 3. From the power supply is divided into active and passive. External GPS for the active antenna, compared to the gamma-gamma GPS external antenna is basically an active antenna. That passive antenna is not including LNA amplifier, but the antenna body.