background image

the issue basing on the recommendations.(see possible troubles and solutions below in Questions & Solutions paragraph)

If the problem is resolved, the screen will display as below. No arrow means that the repeater works correctly:

LINE 1.

BS shows the level of outdoor incoming signal for the corresponding frequency band. Make sure it is as low as possible.

Note! For the optimal functioning of the booster, the BS (input) index should be from -65 to -50 dBm. If the BS is lower than -
65dBm, the coverage will be smaller. However, the device can work normally. If the BS is too weak, it'll be necessary to adjust the

position of the outdoor antenna by raising it as high as possible (on a pole on the rooftop) and pointing it towards the provider's
nearest base station.

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 the largest possible distance from the indoor antenna.

LINE 2.

MS shows the output power of a booster.

Note! The MS (output power) index must be b01 and +15 dBm.

LINE 3.

Device gain shows the current gain (left) and maximal gain (right) of the device. For optimal function both values must be

equal (current gain=max gain).

Line 4 shows that power supply is connected and works properly (DC5V) and automatic gain control of the system is also active

(AGC).

LINE 4.

Power DC 5V shows that power supply is connected and works properly. AGC function for automatic gain adjustment.

Note! In LINE 4 in its right corner can appear the

exclamation point or an arrow

. It denotes an installation error. Use UP and

DOWN buttons to see the reasons. For more details, read the section QUESTIONS & SOLUTIONS.

UP Button

: Go to the previous page to check the functioning status of the device or see the error description.

DOWN Button

: Go to the next page to check the functioning status of the device or see the error description.

Summary of Contents for LCD-1503G

Page 1: ...MYAMPLIFIERS COM INSTALLATION GUIDE MOBIL SIGNAL FORSTÆRKER Nikrans LCD 1503G Freq 2100 MHz Dækning 1700 ft ...

Page 2: ...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 module to touch electronic component The components will be damaged due to electrostatic Please keep away from heating equipment because the repeater dissipates heat during working And do not cover a booster with anything that influences heat dissip...

Page 3: ...s 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: ...devices returns into working mode automatically This functions helps save energy Automatic control of functioning The system automatically shuts off if self excitation is detected Also LCD150 3G automatically adjusts gain level detects faults and gives solutions to them Modern and stylish design The booster looks elegant as its design was developed in accordance with the leading fashion technologi...

Page 5: ...ink frekv 1920 1980 MHz Down link frekv 2110 2170 MHz up link forstærkning 40 dB Down link forstærkning 50 dB Power output Input AC90 264V output DC5V 2A Arbejdstemp C 25 55 Fugtighed 5 95 Størrelse mm 129 95 30mm Forstærker vægt 0 kg dBm 10 dBm ...

Page 6: ... 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 mo...

Page 7: ......

Page 8: ...s from A to E and select a best place that displays full bar signals Outdoor antenna installation Requirements Outdoor antenna should be installed on the roof of the house or in some other place where your mobile device is within coverage zone Mobile signal should be as strong that at least three four bars are indicated on your phone display Outdoor antenna should be fixed in straightly It is nece...

Page 9: ...irements Avoid deforming the antenna feeder where grounding clips are placed and give waterproof treatment to the feeder Lightning Surge Protector Usage If the area where you live is exposed to thunderstorms it is highly advisable to protect a mobile repeater with a lightning surge protector Installed in line between the outdoor antenna and the signal repeater the surge protector prevents equipmen...

Page 10: ...t manners However for maximum safety and efficiency we recommend installing the surge protector between the outdoor antenna and the signal repeater Thus all the subsequent elements of the amplifying system will be protected To understand if the surge protector is installed correctly check up your repeater functioning If the booster works well and gets incoming signals normally it means the surge p...

Page 11: ...ridors long row of houses in two sides tunnels or elevators or rural open space Requirements to indoor antenna installation indoor antenna should be 10 15 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 12: ...s 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 Power requirement Generally AC 100 264V AC 50 5Hz power supply is required Installation Steps Installation schemes Installation with 1 indoor antenna ...

Page 13: ... the position of the outdoor antenna for more proper one Important notes for installation 1 Cables from outdoor antenna should not be wound and be 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 wate...

Page 14: ...epeater s frequencies For example if the repeater s frequency is GSM900 all the accessories must support the GSM900 frequency Repeater Settings Indicator Light Instructions Introduction screen The introductory page is displayed at the screen for 10 sec during the system check up When the device completes the internal self test it shows the standby screen If the arrow down is displayed at the botto...

Page 15: ...ed very close to each other it will evoke self excitation To fix the problem you would need to place the outdoor antenna at the largest possible distance from the indoor antenna LINE 2 MS shows the output power of a booster Note The MS output power index must be between 01 and 15 dBm LINE 3 Device gain shows the current gain left and maximal gain right of the device For optimal function both value...

Page 16: ... the antenna and provider s base station If the device detects that the outdoor antenna is too close to the indoor change the position of either or both antennas to avoid self oscillation Mount them at least 15m one from another If the device detects self oscillation between the antennas and says that the system is being adjusted it means that the system has detected the problem of bad isolation b...

Page 17: ...o place the outdoor antenna at the largest possible distance from the indoor antenna System Test Check whether the coverage is good 1 Take a test with a mobile phone or a data card engineering mobile phone is preferred If the signals in most areas have not been improved please check recommendations below again Weak input signal leads to low output power To increase input signal power level change ...

Page 18: ...mmended ways to adjust outdoor antenna direction location or replace it to an antenna with higher gain to increase input signal strength 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 ...

Page 19: ... antenna on different floors 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 a...

Page 20: ...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 ve...

Page 21: ...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 9001 200...

Page 22: ...res that this signal booster is in compliance with the essential requirements and other relevant provisions of Radio Equipment Directive RED 2014 53 UE CE marking contact myamplifiers com 16178610605 Sales MyAmplifiers com ...

Reviews: