Monday, September 17, 2012

Fault of cell phone jammer means power off at this position

K1103 cell coverage can also be determined based on the size of the measured TA values.
See Figure 1, the concentric circles district is in the same district within the radio frequency resources using two different transmit power, respectively, set within the cell and other cell within the cell transmit power is less than the other cell within the cell coverage is less than outside the cell to produce different sizes of coverage area, and outside the district, including district and a certain degree of "isolation" between other cells. This reduces the possibility of the frequency of within the district other cell interference, and thus through the set of concentric circles to reduce frequency interference, frequency reuse. In practical work, for the relatively large frequency of interference can not be taken to eliminate the interference frequency, we can often frequency of this interference placed within the district to improve its anti-jamming. So that the manufacturer should produce cell phone jammer as per the specific requirements of the school. And then the power adapter should be connected to cell phone jammer .
In network optimization, control coverage is extremely important, it is congestion, dropped calls have a greater impact. Change the antenna height, which is controlled by covering a very effective method. Reduce the antenna height, residential coverage decreases, the traffic can reduce the high-traffic area, but also can be reduced to the same frequency, adjacent channel interference. The above change the antenna height is often difficult to achieve, but also to the base station, change the pitch angle can overcome these shortcomings. ESC antenna, phase modulation to achieve the change of inclination, it has a high precision, good effect, without disrupting the base station will be able to achieve adjustment. Increase the high traffic area antenna tilt, and also to reduce the coverage, and can also reduce the traffic. And the output power supply of cell phone jammer is DC 5V.Fault of cell phone jammer means power off at this position
Low traffic district may be appropriate to reduce the antenna inclination to increase the coverage to attract more users. It should be noted: If the angle is too large, the field strength will undergo fission so that the signal within the coverage area to weaken the two neighboring cells inclination is too large, the coverage is too small may cause blind spots between the two cell Coverage is too large for the control of the same frequency, adjacent channel interference is detrimental. Practical application, the adjustment of the hardware are often subject to constraints, and may be difficult to achieve, or hardware adjustment did not achieve the desired results, then we need to use the base station data to soft adjustment of the district, this is also the focus of discussion. The MOTOROLA system provides a rich set of ways to achieve the adjustment of residential traffic.

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