20W GSM900MHz Air Coupling Frequency Shifting Repeater is designed to solve problems of weak mobile signal, which is much cheaper than adding a new Base Station (BTS).
As per the method of receiving BTS signal by the Donor Unit, two types of FSR are available:
1. Cable-Access FSR: To receive BTS signal via a direct coupler closed to the BTS (Recommended);
2. Wireless-Access FSR: The receive BTS signal via a Donor Antenna (applicable when no line of sight can be viewed between the Donor Unit and Remote Unit as the Donor Unit is installed on the BTS tower).
And both types of FSR can be sorted into 2 sub-categories as per the availability of link frequency:
1. In-band FSR: The link frequency is within the working band of BTS;
2. Out-of-Band FSR: The link frequency is out of the working band of BTS.
Main Features
1. High isolation full duplex design, easy to install.
2. Low noise figure, high receive sensitivity.
3. With ALC and MLC function to ensure stable output power.
4. Low power consumption, environmental protection and energy saving.
5. Modular structure design, easily to upgrade the system.
6. High Q cavity filter and SAW surface acoustic wave filter, high out of band rejection.
7. Adopt the world's most advanced high linearity, low intermodulation LDMOS power amplifier.
8. Adopt the advanced digital PLL, TCXO, OCXO technology, frequency stability and high accuracy.
9. Perfect remote and local network monitoring function.
10. Waterproof design work for all weather indoor and outdoor.
Items | Testing Condition | Specification | ||
Uplink | Downlink | |||
Working Frequency(MHz) | Nominal Frequency | 890-915MHz | 935-960MHz | |
Frequency Range(MHz) | Nominal Frequency | 1.5G or 1.8G | ||
Gain(dB) | Nominal Output Power-5dB | 50±3（Station Couple） | ||
＞80（Air Receive） | ||||
Output Power (dBm) | GSM modulating signal | 0（Station Couple） | 37 | |
33（Air Receive） | 37 | |||
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 | |||
Remote Unit Specification：
Items | Testing Condition | Specification | ||
Uplink | Downlink | |||
Working Frequency(MHz) | Nominal Frequency | 890-915MHz | 935-960MHz | |
Frequency Range(MHz) | Nominal Frequency | 1.5G or 1.8G | ||
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 | |||