background image

Status

ALARM

Green

It is working in linearity

Note: Input signals may be not enough, please pay attention to the readings displayed by the device. Do not
do anything if it is good; otherwise please adjust the repeater system to get better source signal.

Green

Flickering

It is working with slight oscillation.

AGC is activated at 1~10dB.

Orange

Flickering

It is working with medium oscillation.

AGC is activated at 11~20dB.

Red

Flickering

It is working with high oscillation.

AGC is activated at 21~30dB, and the repeater will shut off after 5 seconds of the LED flickering red.

The repeater also has a Network Safe / MUTE feature that automatically shuts off the 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 press “

again to confirm the set value.

Please proceed with the same steps for setting the downlink gain.

Smart function

The Smart function means that the repeater could set the gain automatically. Users should press

to turn ON or turn OFF

this function.

Remark: When the

“Smart”

function is ON, the users will not able to set the gain manually. If you need to set the gain manually,

please turn OFF the

“Smart”

function, and then follow the instructions for MGC setting.

Summary of Contents for NS550

Page 1: ...MYAMPLIFIERS COM INSTALLATION GUIDE MOBIL SIGNAL FORST RKER Nikrans NS550 GSM 4G Freq 900 2600 800 MHz D kning 550 m...

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 componen...

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...

Page 4: ...el 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 safet...

Page 5: ...Hz 2500 2570MHz MHz Down link frekv 925 960MHz 791 821MHz 2620 2690MHz MHz up link forst rkning 65 dB Down link forst rkning 65 dB Power output Input AC90 264V output DC12V 3A Arbejdstemp C 25 55 Fugt...

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 t...

Page 7: ......

Page 8: ...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...

Page 9: ...rements 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 thunder...

Page 10: ...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 sy...

Page 11: ...idors 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...

Page 12: ...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...

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...

Page 14: ...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...

Page 15: ...s 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...

Page 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 oscillatio...

Page 17: ...epeater 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 Pre...

Page 18: ...stance 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 n...

Page 19: ...y 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...

Page 20: ...nstalling 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 Firs...

Page 21: ...n 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 ser...

Page 22: ...s 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...

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