The dispatcher added 2 more workers to the night shift of Cell Phone Jammers .
Is widely used in underground shopping malls, car parks, subways, tunnels, high-rise office buildings, entertainment venues, such as private residential elevator or can not reach the base station signal signal blind area, while for the eradication of urban high-rise buildings due to the impact of the local outdoor produce signal in remote rural areas or shadows the weak signal area of individual towns and villages also have very good coverage results. CDMA Repeater can extend the coverage of CDMA base stations, saving CDMA network construction investment (investment in a CDMA repeater is about one-tenth of a CDMA base station). Especially in high-rise buildings, underground (eg, subway), and the blind and other special circumstances, CDMA repeater will give full play to its strengths. Because of the geographical environment and user requirements are different, the required different types of CDMA Repeater. The order of Cell Phone Jammers will be completed this month.
CDMA repeater is a mobile communication network coverage in order to eliminate blind spots or weak signals, extending the signal coverage of a relay base station equipment, it can solve the eradication of urban high-rise buildings due to the effects of local signal generated by the outdoor shaded area, underground parking, underground tunnels, shopping malls, elevators and other signals can not reach the base of the blind, to improve the coverage of enhanced signal coverage extension. The workshop has arranged the production task of Cell Phone Jammers of nest year.
Fiber optic repeater mobile communications repeater station by the side near the coverage area of the proximal side of the machine and the remote machine composed of two parts, for the proposed base station repeater area in the high mountains block or two far apart, while the base station and between the areas covered by the case with cable Jianzhan. Both broadband fiber optic repeater, Band, Band, frequency selection and other functions. Transmission distance up to 20Km, due to space isolation is good, does not produce the same frequency interference, re-issued the direction of omni-directional antenna can be covered in order to improve coverage results. The order of Cell Phone Jammers of this year is much more than that of last year.
Application of WDM splitter thing, splitting technology, fiber optic Repeater can also use other system components. The composition of the mobile communications repeater for species. Downlink from the base station received signal, amplified to the user the direction of coverage; uplink from the user to receive signals, amplified and sent to the base station. In order to limit belt, plus a band-pass filter. In order to choose the frequency, the uplink and downlink frequency down-conversion to IF, the selected frequency band-limited treatment, and then resume on the frequency, the downlink frequency. Will receive signals into optical signals by photoelectric conversion, transmission and then restore electrical signals by the electro-optical conversion to issue. Will receive on the frequency of the microwave frequency, after down-conversion for the original transmission received frequency, amplified and sent out. Simple indoor repeater is a device, its requirements and the outdoor unit is not the same. The production task of Cell Phone Jammers of this year is tighter than that of last year.
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