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- Use some obstacles (Such as walls).

2. The repeater’s power is on but the phone cannot get connected to the network and still can not

communicate.

Reason 1:

There are loose or wrong connections in the repeater system.

Solution:

Please try to fasten the connections between different parts of the system.

Reason 2:

The signals received by outdoor antenna of other operators nearby are too strong. (For example,

the other operators’ signals are 10 dB stronger than the needed signals.)

Solution 1:

Change the direction of the outdoor antenna or its installation position, so that the gap of signal

strength is reduced between operators.

Solution 2:

Use barriers (like buildings and walls) to block signals from other operators.

Summary of Contents for LCD-300

Page 1: ...WWW MOBILE SIGNAL BOOSTERS SHOP INSTALLATION GUIDE MOBILE SIGNAL BOOSTER Nikrans LCD 300 Freq 900 MHz Coverage 3300 ft ...

Page 2: ...eet security requirements any operation shall be carried out only after turning off power in advance Only the professional is authorized for the operation Do not dismantle machine maintain or replace its components by yourself because this way the equipment may be damaged and you may even get an electric shock Do not open the repeater touch the module of the repeater or open the cover of the modul...

Page 3: ... Signal strength can also be negatively affected by trees hills buildings weather and other obstructions You may be relatively close to a base station but still unable to make a call This often occurs inside houses offices and other buildings with stucco concrete or metal walls that may block the signal The Signal Booster works with two antennas An Indoor antenna communicates with your cell phone ...

Page 4: ...You can now see input and output signal strength levels installation tips error notifications and other important system information using the LCD screen Hence it becomes effective and easy for non technical users as they can understand the technical aspects of this device Sleep mode For energy saving purposes the device goes into sleep mode and the screen shuts down when the device does not detec...

Page 5: ...age 3300 ft Up link freq 890 915 MHz Down link freq 935 960 MHz Up link Gain 50 dB Down link Gain 60 dB Power supply Input AC90 264V output DC5V 2A Working t C 25 55 Humidity 5 95 Size mm 158 95 30 Booster Weight 0 5 kg dBm 15 dBm ...

Page 6: ...e band Yaggi is recommended Function To pick up outside signals from the base station and send them by cable to the repeater outdoor antenna also transmits the uplink signals from the repeater back to the base station Indoor Antenna It is mounted inside a building to transmit the improved signals throughout the coverage area Cables Сoaxial cables for indoor and outdoor antennas Mountings Special m...

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Page 8: ...e of the building aiming away from the building which will reduce amount of possible obstacles For your convenience and acceleration of the process perform the testing in pair The mobile phone shall display full bar signals in location where the outdoor antenna is installed Phone calls or data transmission shall be smooth and stable It is recommended to test the signal 3 times in location where an...

Page 9: ...per isolation measures if they have to be placed on the same cable racks owing to the site condition restrictions 3 Fasten all connection parts of the whole system in correct order from the antenna to repeater interfaces and make sure that the electrical interfaces are well contacted Give waterproof treatment to outdoor connection parts 4 Take lightning protection measures for the antenna and feed...

Page 10: ...ggi antenna when the area shape is long and narrow corridors long row of houses in two sides tunnels or elevators or rural open space Requirements to indoor antenna installation indoor antenna should be 5 meter distance from an outdoor antenna indoor antenna should be at least 2 meters above the ground indoor antenna should be fixed vertically with the ground ...

Page 11: ...or smoke or on a cool and ventilated wall to ensure excellent heat dissipation 2 Installation height should be sufficient for RF cable wiring heat dissipation and maintenance 3 Independent and stable power supply is necessary 7 1 2 Power requirement Generally AC 100 264V AC 50 5Hz power supply is required 7 2 Installation Steps 7 2 1 Installation schemes Installation with 1 indoor antenna ...

Page 12: ...e placed as straight as possible in order not to create any hindrance for signal reception and its transmission 2 Cables should be shortened to the acceptable maximum so that not to waste or decrease mobile signal coverage range 3 In order to prevent water from coming into the mobile phone booster through the cable make a loop in it 4 Keep the outdoor antenna as far as possible from frequency aeri...

Page 13: ...ection Choosing accessories pay attention to the two characteristics frequency and impedance All accessories shall support the repeater s frequencies For example if the repeater s frequency is GSM900 all the accessories must support the GSM900 frequency 7 3 Repeater Settings 7 3 1 Indicator Light Instructions Introduction screen The introductory page is displayed at the screen for 10 sec during th...

Page 14: ...tion If the BS is higher than 50 dBm the device will have self excitation issue In such cases the output signal will drop during communication If the antennas are placed very close to each other it will evoke self excitation To fix the problem you would need to place the outdoor antenna at thelargest possible distance from the indoor antenna LINE 2 MS shows the output power of a booster Note The M...

Page 15: ...Field Test Mode which is an application available in free access or a phone mode requiring no extra setups On most used mobile OS operating systems the test mode can be started as follows iOS Type 3001 12345 and hit Call Android Type 197328640 to activate Windows Type 3282 and start Blackberry Press TOOLS SETTINGS STATUS or OPTIONS STATUS Note To get parameters for 2G 3G and LTE disable WiFi In ca...

Page 16: ...eplace it to an antenna with higher gain to increase input signal strength 7 4 2 Repeater can not communicate in Power ON status 1 The power is on but there is a signal fluctuation or a flash signal The phone call cannot be made received It shall be caused by the insufficient isolation between outdoor and indoor antennas Please take the following measures Firstly check whether the alarm LED lights...

Page 17: ...ctions between different parts of the system Reason 2 The signals received by outdoor antenna of other operators nearby are too strong For example the other operators signals are 10 dB stronger than the needed signals Solution 1 Change the direction of the outdoor antenna or its installation position so that the gap of signal strength is reduced between operators Solution 2 Use barriers like build...

Page 18: ... installing the repeater what should I do Check if the repeater s power supply works normally or not 3 If repeater s power supply is normal ALM light is on or flashing all the time what should I do Firstly check whether all connectors are connected well or not If it is all right please adjust the direction of the outdoor and indoor antenna Make sure the horizontal distance is 75 feet or more the v...

Page 19: ...end all in one solutions covering up to 5000 m2 Depending on the model boosters operate in GSM DCS CDMA LTE or combination of these standards at 850 2100 MHz frequencies The product line is extended with a series of antennas splitters and other accessories for completing exclusive custom projects of any difficulty level Nikrans product development process is rigorously assessed to comply with ISO ...

Page 20: ...at this signal booster is in compliance with the essential requirements and other relevant provisions of Radio Equipment Directive RED 2014 53 UE CE marking info mobile signal boosters shop 448000698689 Sales www mobile signal boosters shop ...

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