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INTRODUCTION AND REASONS FOR WEAK CELLULAR

SIGNALS

Cell Phone Signal Booster is a perfect solution for providing improvement of cellular signal reception inside a house, office,

restaurant, VIP Room, apartment, building or shopping mall.

Generally cell phones cannot pick up or maintain a strong cellular signal due to one of the two following reasons:

1.

Location of the Nearest Base Station

– Base stations are used to provide broad coverage. However there are many areas in

which signal strength gets reduced due to topographic peculiarities or local Governmental restrictions regarding the height or

location of base stations. Rural areas generally have fewer base stations than urban regions.

2.

Natural and Man-Made Obstructions

– 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 and an Outdoor antenna
communicates with the base station (BS). The Outdoor antenna receives a signal from the BS and sends it through the cable to

the Signal Booster, where it gets amplified and re-transmitted by the Indoor antenna throughout a building. When the Indoor
antenna picks up a signal from your cellular device, the Signal Booster amplifies that signal and transmits it through the cable to
the Outdoor antenna and back to the BS.

(Note: The Signal Booster will only operate if there is an adequate signal to amplify.)

Содержание NS550-GSM+4G

Страница 1: ...MYAMPLIFIERS COM INSTALLATION GUIDE MOBILFÖRSTÄRKARE Nikrans NS550 GSM 4G Freq 900 2600 800 MHz Täckning 550 m ...

Страница 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...

Страница 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...

Страница 4: ...ideally suits for middle sized private houses restaurants supermarkets parking areas etc The Nikrans signal repeater NS 550 GSM 4G LTE has CE and RoHS certificates that prove high quality and safety level of the device The device works at the most popular GSM and 4G frequency bands in the EU Asia and Africa It supports EGSM 900 and one of LTE bands upon your choice 4G LTE 2600MHz and 4G LTE 800MHZ...

Страница 5: ...832 862MHz 2500 2570MHz MHz Nedlänk frek 925 960MHz 791 821MHz 2620 2690MHz MHz Nedlänk Gain 65 dB Nedlänk Gain 65 dB Strömuttag Input AC90 264V output DC12V 3A Arbetstemperatur C 25 55 Luftfuktighet 5 95 Storlek mm 210 145 44mm Boosterns vikt 2 3 kg dBm 15 dBm ...

Страница 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...

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Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 14: ...r example if the repeater s frequency is GSM900 all the accessories must support the GSM900 frequency Repeater Settings Indicator Light Instructions Repeater Features Settings The Dual Band repeater is a newly designed device with intelligent functions The repeater possesses all the features of a consumer electronic device helping to operate it via LCD touch screen on the front panel Also it has m...

Страница 15: ...is in standby mode when there is no call or data transmission It will be activated immediately when a call or a data exchange session are initiated 8 Antenna Isolation Detection After switching on the repeater for the first time it will automatically detect the oscillation between the outdoor and indoor antennas 9 Press Enter to select or confirm the settings 10 Back to the previous page or to can...

Страница 16: ... of a touch screen if any oscillation is detected In this case the Smart function must be disabled The repeater LED indicators will change their color in case of a too strong input signal or oscillation detected Thus the Alarm LED located on the front panel will turn from green to orange or red depending on the strength of the input signal After switching on the repeater check first the POWER and ...

Страница 17: ...repeater in order not to interfere with the operators cellular network Users shall make sure that the LED indicators remain green at all times for optimum system performance Manual Gain Control MGC Press icon until you get to the uplink gain settings the uplink gain value is flickering then press to decrease the gain as required or press to increase the gain if the setting is not proper Please pre...

Страница 18: ...istance 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 the direction of the outdoor antenna or its installat...

Страница 19: ...by ATT DIP if the above listed methods don t work The following measures can also be helpful Use the roof of the building to enlarge isolation Please try to place the outdoor antenna and indoor 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 co...

Страница 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...

Страница 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...

Страница 22: ...es 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 44 8000485044 Sales MyAmplifiers com ...

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