Kingtone Repeaters system is designed to solve problems of weak mobile signal, which is much cheaper than adding a new Base Station (BTS). Main operation of RF Repeaters system is to receive low‐power signal from BTS via radio frequency transmission and then transmit the amplified signal to the areas where network coverage is inadequate. And the mobile signal is also amplified and transmitted to the BTS via the opposite direction.
Mainfeature
-
Main Features of repeater:
1,High linearity PA; High system gain；
2,Intelligent ALC technology；
3,Full duplex and high isolation from uplink to downlink；
4,Automatic Operation convenient operation；
5,Integrated technique with reliable performance;
6,Local and remote monitoring (optional) with automatic fault alarm &remote control;
7,Weatherproof design for all-weather installation;
- Application&scenarios
-
GSM 900 mhz telephone signal Applications
To expand signal coverage of fill signal blind area where signal is weak
or unavailable.
Outdoor: Airports, Tourism Regions, Golf Courses, Tunnels, Factories, Mining Districts, Villages etc.
Indoor: Hotels, Exhibition Centers, Basements, Shopping
Malls, Offices, Packing Lots etc.
It is mainly applicable to such case:
The repeater can find an installation place which can receive pure BTS signal at strong enough level as the Rx Level in repeater site should be more than ‐70dBm;
And can meet the requirement of antenna isolation to avoid self‐oscillation.
Repeater Installation -In-building coverage solution :Specification
-
Items
Testing Condition
Specification
Uplink
Downlink
Working Frequency(MHz)
Nominal Frequency
890 – 915MHz
935 – 960MHz
Gain(dB)
Nominal Output Power-5dB
95±3
Output Power (dBm)
GSM modulating signal
37
43
ALC (dBm)
Input Signal add 20dB
△Po≤±1
Noise Figure (dB)
Working in-band（Max. Gain）
≤5
Ripple in-band (dB)
Nominal Output Power -5dB
≤3
Frequency Tolerance (ppm)
Nominal Output Power
≤0.05
Time Delay (us)
Working in-band
≤5
Peak Phase Error(°)
Working in-band
≤20
RMS Phase Error (°)
Working in-band
≤5
Gain Adjustment Step (dB)
Nominal Output Power -5dB
1dB
Gain Adjustment Range(dB)
Nominal Output Power -5dB
≥30
Gain Adjustable Linear(dB)
10dB
Nominal Output Power -5dB
±1.0
20dB
Nominal Output Power -5dB
±1.0
30dB
Nominal Output Power -5dB
±1.5
Inter-modulation Attenuation (dBc)
Working in-band
≤-45
Spurious Emission(dBm)
9kHz-1GHz
BW:30KHz
≤-36
≤-36
1GHz-12.75GHz
BW:30KHz
≤-30
≤-30
VSWR
BS/MS Port
1.5
I/O Port
N-Female
Impedance
50ohm
Operating Temperature
-25°C ~+55°C
Relative Humidity
Max. 95%
MTBF
Min. 100000 hours
Power Supply
DC-48V/AC220V(50Hz)/AC110V(60Hz)( ±15%)
Remote Monitoring Function
Real-time alarm for Door Status, Temperature, Power Supply, VSWR, Output Power
Remote Control Module
RS232 or RJ45 + Wireless Modem + Chargeable Li-ion Battery
