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In case of installation errors an exclamation point/arrow appears on the LCD screen. It happens in two cases:

1. Input signals (external BS) are weak.

It can happen that even with a weak signal the amplifier works well. In this case, nothing should be done. Just ignore
a flashing exclamation point. However, if the indoor coverage is still very low, it will be necessary to adjust the

position of the outdoor antenna so that it can pick up a stronger signal. For that, try 3 possible solutions:

Solution 1. Direct the outdoor antenna to provider’s nearest base station.

Solution 2. Change the position of the outdoor antenna. Try to put it as high as possible.

Solution 3. Reinstall the outdoor antenna trying to avoid obstacles between the antenna and provider’s base station.

2. The separation between the two antennas (outside and inside) is not sufficient.

This can cause interference between antennas and, as a result, the device will reduce the device gain. The output
signals will, therefore, be very weak. To avoid the risks of this type of malfunction, make sure not to put the 2

antennas too close to each other, (D = 10-20 m) and never to orient them face to face, ideal would also be that they

are not in direct vision (use of a mineral or metallic obstacle, wall, ceiling, slab, etc.), and they aim opposite
directions, or at least frankly different.

Does my signal booster work if its LCD screen is switched off? What does Sleep mode mean?

The signal booster enters into Sleep mode only when you don’t use it. During Sleep mode only the LCD display turns off, while the

amplification system keeps on functioning. This function allows saving energy. In case you need to see information on the screen,

just push any button.

Can I use 1 indoor antenna if I don’t need 2?

Yes, you can use only 1 indoor antenna if the distance between both indoor antennas in your case cannot exceed 5m. However, if

you can install the indoor antennas at the distance exceeding 5m or create some obstacles like walls between them, we
recommend you using 2 indoor antennas for more effective signal distribution and larger coverage.

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 installation position or replace it for an antenna with higher gain.
- Check whether it is necessary to use additional indoor antennas as barriers block signal penetration; also check

whether the repeater’s power is enough; please install extra indoor antennas or replace the repeater for another model
with higher power level.

2. If the signals in small parts of the area have not been improved, please check the following:

- Check whether the indoor antenna is installed correctly or not; you may try to change the antenna location to improve
coverage.
- Check if it is necessary to adjust the direction of the indoor antenna.
- Check whether it is necessary to add one or more antennas to enhance the coverage in special areas.

Summary of Contents for LCD-500GD

Page 1: ...MYAMPLIFIERS COM INSTALLATION GUIDE MOBIL SIGNAL FORST RKER Nikrans LCD 500GD Freq 900 1800 MHz D kning 500 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: ...re sine innovative funktioner s som LCD sk rm Det viser dig signalniveau inde og ude hvilket hj lper under ops tningen I tilf lde af fejl forklarer meddelelser dig rsagen og tilbyder l sninger Install...

Page 5: ...90 915 1710 1785 MHz Down link frekv 935 960 1805 1880 MHz up link forst rkning 67 dB Down link forst rkning 75 dB Power output Input AC90 264V output DC5V 2A Arbejdstemp C 25 55 Fugtighed 5 95 St rre...

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: ...nnect outdoor and indoor antennas in the proper way 5 Test the signal of your mobile telephone a maximum quantity of bars should be indicated on the display of your phone in each corner of the locatio...

Page 14: ...on except for the In Line Signal Boosters Repeater s ports description 1 Outdoor port BS for connecting the outdoor antenna by cable 2 Indoor port MS1 for connecting the indoor ceiling antenna by cabl...

Page 15: ...s 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 5...

Page 16: ...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 On the LCD screen you can see essential data about s...

Page 17: ...correct booster functioning For the optimal functioning of the booster the BS input readings should be between 65 and 50 dBm The MS output power readings must be between 05 and 15 dBm Device Gain must...

Page 18: ...se it During Sleep mode only the LCD display turns off while the amplification system keeps on functioning This function allows saving energy In case you need to see information on the screen just pus...

Page 19: ...mended 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 o...

Page 20: ...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 wr...

Page 21: ...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 22: ...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 23: ...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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