Related Manuals for Nikrans MA-250CP
Summary of Contents for Nikrans MA-250CP
- Page 1 INSTALLATION GUIDE Mobile Signal Repeater MA-250CP 850, 1900 MHz Coverage: 250 m...
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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. 1. Safety Warnings Users must follow the principles below? Repeater should follow system requirements;... -
Page 3: Introduction And Reasons For Weak Cellular Signals
2. 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
3. Model Description This dualband model will improve cellular connections effectively. It works at two frequencies at a time - 850 and 1900 MHz - and ensures perfect voice calls and 3G internet work. It’s suitable for most US cell phone providers such as Verizon, AT&T Mobility, United States Cellular Corporation, Sprint Nextel, etc. -
Page 5: Specification
4. Specification Indoor coverage: 250 m Up-link freq: 824-849 & 1850-1910 MHz Down-link freq: 869-894 & 1930-1960 MHz Up-link Gain: 60 dB Down-link Gain: 65 dB Power supply: AC110V?220V to DC+5V/3A Working t °C: -25 - +55 Humidity: 5-95% Size (mm): 135 ×... -
Page 6: Repeater System Overview
5. Repeater system overview A repeater kit includes: • Outdoor Antenna? Outdoor panel or wide 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. - Page 7 • Additional indoor antennas: when the building structure is too complicated...
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Page 8: Antennas And Cables Setting Up
6. Antennas and Cables Setting Up 6.1. 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. - Page 9 If isolation can’t be achieved due to limited distance, the roof of the building, walls or any other barriers can be used between antennas to increase isolation. Installation of a panel antenna as an outdoor antenna Installation of a wide directional antenna as an outdoor antenna Installation of a Yaggi antenna as an outdoor antenna 6.2.
- Page 10 6.3. 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).
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Page 11: Repeater Installation
7. Repeater Installation 7.1. Installation requirements 7.1.1. 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. - Page 12 3. In order to prevent water from coming into the mobile phone booster through the cable make a loop in it. 4. Keep the outdoor antenna as far as possible from frequency aerials, high voltage cables, metal nets or transformers. 5.
- Page 13 7.3. Repeater Settings 7.3.1. Indicator Light Instructions • There are 5 indicator lights: PWR (power), ALM (alarm), three signal strength indicators. • Power light is always on (green). • ALM light is red. When the booster works normally, this light is off, when the booster suffers from self-oscillation or input signal is too strong, this light is flicking.
- Page 14 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.
- Page 15 7.4.2. 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. It shall be caused by the insufficient isolation between outdoor and indoor antennas. Please take the following measures: - Firstly check whether the alarm LED lights.
- Page 16 8. FAQ 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.
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Page 17: About Nikrans Brand
9. 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 18 Certificates +44 2037691854 (UK) · +33 975122740 (France) · +16178610605 (US) E-mail: contact@myamplifiers.com · Skype: gsm_amplifier www.myamplifiers.com...
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