This is a 2dBi Gain Dual Band 3G / 4G LTE Antenna with an SMA-Male connector having a frequency of  900M 1800mhz

This compact GSM900/1800 omnidirectional “rubber-duck” GSM antenna provides broad coverage. It is a coaxial sleeve design with an omni-directional pattern.

This antenna was also designed to transmit on the 900mhz frequencies with a top end transmission not to exceed 25 watts. Works for the current Mobile Communication.

A highly optimal design for direct mounting, this STUB avoids a Coaxial cable by mounting the antenna directly to the SMA connector. This results in low losses due to the reduced interconnects and forms a tidy and convenient antenna solution. This antenna features a Straight SMA connector, allowing them to be used vertically, at a right angle. It is suitable as a replacement RF antenna for many access points and radios that are equipped with SMA connectors such as mobile, wireless pay phone, fixed commercial phone, PCMCIA card, navigation device, vehicle wireless device.

Applications:  

1. GSM/GPRS antennas are mainly applied to the follows
2. Indoor signal coverage system,
3. Security system,
4. Wireless data collection system,
5. Wireless electric power communication
6. Wireless public payphone system