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| Base Station Wireless Antennas for Cellular Network SystemsOur mobile communications product portfolio comprises directional and omni-directional antennas tailored to suit our customers' individual requirements. Specially-designed antennas for in-building communications are also available. Our wide range of antennas clearly demonstrates our company's broad product spectrum. Dual Band AntennaThe demand for dual band antennas is constantly increasing as operators are obtaining GSM 1800 licenses. Advantages of RNS dual band antennas include:
Omni Antennas for Microcell SystemsBoth GSM 900 and 1800 Omni Antennas are now available for Microcell Applications. Comparing Antennas Mechanical and Electrical DowntiltThe downtilt angle remains constant over the whole azimuth range for antennas with electrical downtilt. For antennas with mechanical downtilt, this is only achieved in the direction of the main radiator. Antennas with electrical downtilt do not produce unexpected interference to other cells as opposed to antennas with mechanical downtilt. Network planning is becoming ever the more challenging, especially with the introduction of 3G. The challenge for network operators is to balance coverage, call quality, capacity, and costs in order to achieve maximum revenue from their network. These factors affect each other and engineers need to establish a balance through the use of various techniques. One method is adjusting the antennas downtilt. During mechanical downtilt, the BTS is switched off for safety reasons during antenna adjustments, resulting in dropped calls and in turn affecting revenue. With remote electrical tilt there is no need to shut down the system. Adjustments to the antenna can be made without affecting the network resulting in cells which remain fully operational. Increased capacity in high traffic areas can be achieved through correct planning; thus by adding RET features to your network. |
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