Underground gallery tunnel for full signal coverage in city?
There is no doubt that Lintratek pulled off the big project flawlessly.
We use high-power optical fiber repeater(the Remote Repeater is used together with the Near-End Repeater), both long and short tunnels are suitable.
Optical fiber repeater has many advantages such as low loss, long transmission distance and signal stabilization , etc.
① Details of Project
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Integrated Electric Power Gallery Tunnel in Tianjin, China |
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| Project Location | Tianjin, China |
| Coverage Lengths | 2.2km |
| Project Type | Commercial Use |
| Project Brief | The tunnel is in the deep underground, contains steel structure, |
seriously impede signal transmission.Customer DemandAll three networks +2G-4G network
②Why install the high power signal amplifier?
Integrated Electric Power Gallery Tunnel in Tianjin, China. It is used as the transmission channel of electric power and communication control cables in cities and industrial enterprises. Connecting electrical equipment everywhere is the top priority in industrial fire prevention and control.Therefore, through personnel maintenance, remote control robot inspection and other ways, prevent and control cable tunnel and integrated pipe corridor power cabin fire.
In order to ensure that workers maintain smooth communication with the outside world and the robot in the tunnel can operate normally during routine maintenance, the tunnel signal must be fully covered.
And considering the small diameter of the tunnel and the steel structure, the conventional copper feeder will have losses. We present the following coverage scheme.
③ Product collocation scheme
Considering the project situation, we chosen the 10W optical fiber repeater and 2W repeater, a total of 10 sets. It is equipped with wide-band logarithmic periodic antenna, ceiling antenna, small plate transmitting antenna, etc.
This equipment has the characteristics of small loss, long transmission distance, signal stability, long and short tunnels can be used.
This optical fiber repeater supports three networks, 2G to 4G network, has high gain, ALC automatic electrical balance control, waterproof and moisture-proof body, heat dissipation design, suitable for indoor and outdoor large-scale signal coverage.
④ How to install？
The first step, install the outdoor receiving antenna
The outdoor antenna is installed in the area with good signal at the tunnel entrance, and the antenna is oriented towards the base station.
The second step, Installation of indoor antenna
Plate antenna is a directional antenna. When installed, the front of the antenna faces the area to be covered.
The ceiling antenna is an omnidirectional antenna, which can be suspended from the ceiling parallel to the ground during installation.
The third step, detect the network
Using “cellularZ” to detect the signal value of each point of the tunnel, display the mobile RSRP value floating in -69dBm, phone calls, Internet access is not stuck, the robot can also run smoothly. （RSRP value is the value to measure whether the signal is smooth, above -80 is very smooth, below -110dBm basically no network.）
If you are still looking for a reliable repeater source manufacturer, Lintratek is your best choice. Lintratek has a research team composed of several RF experts, 3 R & D and production bases, as well as perfect automatic detection equipment and product laboratories. It also provides the service of “one-stop solution of mobile signal coverage” and promises to produce solutions in 24H, which is more efficient and convenient!
Original article, source: www.lintratek.com Lintratek mobile phone signal booster, reproduced must indicate the source!
Post time: May-11-2023