Nikrans BD-400FG Installation Manual

Phone signal amplifier
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MYAMPLIFIERS.COM
INSTALLATION GUIDE
PHONE SIGNAL AMPLIFIER
Nikrans BD-400FG
Freq.: MHz
Coverage: 4400 ft²

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Summary of Contents for Nikrans BD-400FG

  • Page 1 MYAMPLIFIERS.COM INSTALLATION GUIDE PHONE SIGNAL AMPLIFIER Nikrans BD-400FG Freq.: MHz Coverage: 4400 ft²...
  • Page 2: Safety Warnings

    PREFACE This user’s manual describes the installation and maintenance of wide band consumer boosters. Please do read user manual carefully before installing and maintaining repeaters. The information in this manual is subject to change without prior notice. SAFETY WARNINGS Users must follow the principles below? Repeater should follow system requirements;...
  • Page 3 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.
  • Page 4: Model Description

    MODEL DESCRIPTION BD-400FG can become a very good choice for you if you are tired of 4G and GSM signal issues and you need to cover with the improved signal a comparatively large inner area. This mobile phone signal booster can send the improved signal to more than one mobile device at once which means that even if you place this repeater at the location with a lot of daily visitors and workers, it will still easily cope with its tasks.
  • Page 5: Specification

    SPECIFICATION Indoor coverage: 4400 ft² Up-link freq: 703-733 , 880-915 MHz Down-link freq: 758-788 , 925-960 MHz Up-link Gain: 68 dB Down-link Gain: 72 dB Power Output: AC110-240, DC6V, 2A Working t °C: -25/+55 Humidity: 5 - 95% Size (mm): 120*106*25mm Booster Weight: 0.45 kg...
  • Page 6 REPEATER SYSTEM OVERVIEW The picture below shows how simple and fast booster installation is and how effectively it works. A Yaggi or panel antenna (it depends on the booster model and its power), as donor/outdoor antenna, is installed at the top of the roof to pick up good mobile signals from the base station, and sends them through the cable to the booster where the signals get amplified significantly;...
  • Page 8: Outdoor Antenna Installation

    ANTENNAS AND CABLES SETTING UP Outdoor antenna installation The repeater’s main function is to improve weak RF signals in an area. The formula is: Input power + Gain= Output power. The signal strength from an outdoor antenna directly affects the efficiency of the indoor coverage. It is very important to choose the correct outdoor antenna location in order to get the best signal.
  • Page 9 Installation of a panel antenna as an outdoor antenna Installation of Yagi wide band antenna as an outdoor antenna Installation of a Yaggi antenna as an outdoor antenna Cable layout and connector assembly 1. Keep the type, specifications, routing direction, location and curvature radius of cables in compliance with the model requirements.
  • Page 10 Lightning Surge Protector Setup Please read carefully the instructions provided with the coaxial surge protector to ensure safe and effective installation in terms of grounding and maintenance. 1. Connect the male N-connector of the surge protector to the female N-connector of the outdoor antenna. 2.
  • Page 11: Indoor Antenna Installation

    Indoor antenna installation Correct antennas types shall be used according to the site conditions and the requirement. 1. Omni antenna (ceiling Omni or whip antenna) shall be installed in the center and radiate all directions. 2. It is better to use a directional panel antenna or Yaggi antenna when the area shape is long and narrow (corridors, long row of houses in two sides, tunnels or elevators or rural open space).
  • Page 12: Repeater Installation

    REPEATER INSTALLATION Installation requirements Installation Location Requirements 1. The repeater shall be installed indoor in a cool, dry and ventilated room without erosive gas 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.
  • Page 13 INSTALLATION STEPS 1. Find an appropriate position for an outdoor antenna. ( see the r equirements in 6.1. sect. ) 2. Plug in the outdoor antenna to the mobile booster from BS side and fasten tightly. 3. Plug in the indoor antenna to the mobile booster from MS side and fasten tightly. 4.
  • Page 14: Accessories Selection

    Repeater’s ports description 1. Outdoor port: connected with the outdoor antenna by cable 2. Indoor port: connected with indoor antenna directly or by cable 3. DC IN: connected with power supply. Accessories selection Choosing accessories pay attention to the two characteristics – frequency and impedance. All accessories shall support the repeater’s frequencies.
  • Page 15: Repeater Settings

    Repeater Settings Indicator Light Instructions BS - Outdoor port for connecting an external antenna. MS - Indoor ports for connecting an internal antenna. DC 6V-9V: for connecting a power supply. Note: You can use more than 1 indoor antenna (up to 3) if the covered area has several floors or many walls and partitions. To connect additional antennas you will need a signal splitter.
  • Page 16 2. After the device finishes starting up, the screens with signal readings will be displayed as follows (use UP and DOWN buttons to switch the signal readings for two frequency bands). L8 – LTE 800 MHz L7 – LTE 700 MHz OS - Outdoor signal that the device receives from outside source (cell tower).
  • Page 17: Questions & Solutions

    Working Gain – The current gain measured while the booster is working under different conditions. When the Input signal is weak, the booster will work with at the max gain, but when the device detects too much strong input signal, it will automatically reduce the gain to avoid self-oscillation of the system.
  • Page 18: System Test

    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 a self-excitation issue.
  • Page 19 For maximum precision in signal level testing, switch your cell phone into Field Test Mode and see dB parameter. The closer dB signal level to 0, the better cell phone reception you’ll get. • -105 to -100 = Bad/drop call •...
  • Page 20 Remark: • Reduce attenuation values * — by ensuring the isolation level • Increase output power * — recommended 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.
  • Page 21 1. Will booster increase the RF radiation? No, it will decrease instead. Every cell phone irradiates heavily being in zones with poor mobile signal as a cell phone is constantly in searching mode. The danger is your cell phone is about 2cm to your body, which makes its usage rather harmful. And when a booster is installed, it improves the mobile signals in the coverage, and your cell phone stops irradiating strongly, thus it will reduce the RF radiation of the mobile phone tremendously.
  • Page 22 ABOUT NIKRANS BRAND Nikrans boosters is the result of a 7-year experience in selling cell phone signal amplifiers throughout EMEA, APAC, NAR and other regions. For all these years we’ve been following the market carefully listening to customers and industry leading experts with the aim of working up our own vision and quality standards in signal amplification.
  • Page 23 Hereby, Nikrans declares 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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