Kingtone Bi-Directional Amplifiers 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 Bi-Directional Amplifiers 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.
◇ High linearity PA; High system gain；
◇ Intelligent ALC technology；
◇ Intelligent AGC technology；
◇ Full duplex and high isolation from uplink to downlink；
◇ Automatic Operation convenient operation；
◇ Integrated technique with reliable performance;
◇ Local and remote monitoring (optional) with automatic fault alarm &remote control;
◇ Weatherproof design for all-weather installation;
Technical Specification:
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Items |
Testing Condition |
Specification |
Meno |
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|
Uplink |
Downlink |
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|
Working Frequency(MHz) |
Nominal Frequency |
380-385MHz |
390-395MHz |
Customized | |
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Bandwidth |
Nominal Band |
5MHz |
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|
Gain(dB) |
Nominal Output Power-5dB |
90±3 |
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|
Channel bandwidth |
Nominal Band |
25kHz |
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|
Output Power (dBm) |
modulating signal |
+30±1 |
+33±1 |
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|
ALC (dBm) |
Input Signal add 20dB |
△Po≤±1 |
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|
Noise Figure (dB) |
Working in-band（Max. Gain） |
≤15 |
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|
Ripple in-band (dB) |
Nominal Output Power -5dB |
≤3 |
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Frequency Tolerance (ppm) |
Nominal Output Power |
≤0.05 |
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|
Time Delay (us) |
Working in-band |
≤5 |
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Gain Adjustment Step (dB) |
Nominal Output Power -5dB |
1dB |
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Gain Adjustment Range(dB) |
Nominal Output Power -5dB |
≥30 |
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|
Gain Adjustable Linear(dB) |
10dB |
Nominal Output Power -5dB |
±1.0 |
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20dB |
Nominal Output Power -5dB |
±1.0 |
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|
30dB |
Nominal Output Power -5dB |
±1.5 |
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|
Inter-modulation Attenuation (dBc) |
Working in-band |
≤-45 |
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|
Spurious Emission(dBm) |
9kHz-1GHz |
BW:30KHz |
≤-36 |
≤-36 |
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|
1GHz-12.75GHz |
BW:30KHz |
≤-30 |
≤-30 |
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VSWR |
BS/MS Port |
1.5 |
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I/O Port |
N-Female |
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Impedance |
50ohm |
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Operating Temperature |
-25°C ~+55°C |
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Relative Humidity |
Max. 95% |
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Power Supply |
DC-48V/AC220V(50Hz)/AC110V(60Hz)( ±15%) |
Option |
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