BOOSTERS
BTS Power Amplifier
MODEL:
BPA867 (GSM 900MHz) / BPA887 (GSM 1800MHz) / BPA897 (GSM 1900MHz)
BPA917 (CDMA 450MHz) / BPA937 (CDMA 800MHz) / BPA997 (CDMA 1900MHz)
BTS Power Amplifier
The cost-effective BTS Power Amplifier (BPA) is designed to expand signal coverage through enhancing the downlink transmission power of BTS in the area where it is too expensive to build a new BTS or too difficult to choose the installation site for a repeater.
It is installed close to the BTS and amplifies the BTS signal via an ultra-linear amplifier unit, then transmits the amplified signal to the Tx antenna input port. A Tower Mount Amplifier (TMA) is usually installed under the Rx antenna as an auxiliary equipment to improve the balance between uplink and downlink.
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Features
Application
Specifications
Features
- Effective coverage area of base station can be extended by 2~4 times;
- Continuous tunable gain and output power with ALC function;
- Flexible configuration of modules can accommodate to different type of BTS;
- Adopting standard 19-inch cabinet makes installation easy beside the BTS;
- Support working at 1~4 channels and each channel can be amplified independently;
- Upon power interruption or abnormal output, bypass system will be automatically started to ensure continuous working of BTS;
- RS-232 ports provide links to a notebook for local supervision and to the built-in wireless modem to communicate with the NMS (Network Management System) that can remotely supervise working status of BPA and download operational parameters to BPAs.
Application Range
- Around the BTS, where the territory of subscribers is expanded but the call traffic is not obviously raised;
- When multiple repeaters are required to fill gaps at the edge of BTS coverage area or to expand coverage for multiple rising traffic hotspots in suburb;
- When BTS coverage needs to expand in an open level area where antenna isolation requirement for repeater can be hardly satisfied.
Application Diagram
Application Diagram of BTS Power Amplifier
Specifications of GSM BTS Power Amplifier
| Specifications | |||
|---|---|---|---|
| Working Frequency (customizable) | 935~960MHz / 1805~1820MHz / 1930~1990MHz | ||
| Power Amplifier Unit | Gain | 12±1 dB | |
| Output Power | 52±1 dBm | ||
| In-Band Ripple | ≤ 1.2 dB | ||
| Bypass Insertion Loss | ≤ 1.2 dB | ||
| Phase Distortion | ≤ 2° (RMS) & ≤ 5° (Peak) | ||
| Whole Equipment | Gain | 11±1 dB | |
| Output Power | 51±1 dBm | ||
| In-Band Ripple | ≤ 1.8 dB | ||
| Bypass Insertion Loss | ≤ 2.5 dB | ||
| Voltage Standing Wave Ratio (VSWR) | ≤ 1.4 | ||
| Frequency Error | ≤ 0.01ppm | ||
| Max. Gain | 12±1 dB | ||
| Gain Adjustment Range | 7±1 dB @ step of 1dB | ||
| Spurious Emission | < -36dBm @ 9kHz~1GHz < -30dBm @ 1GHz~12.65GHz |
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| Resistance against Mismatching Load | 10:1 | ||
| Intermodulation Attenuation | ≥ 70dBc | ||
| Downlink/Uplink Power Detection Level | 0~5 V | ||
| Envelope Power of Transmitting RF Carrier | Comply to GSM05.05 specifications | ||
| Output Modulation Spectrum | Comply to GSM05.05 specifications | ||
| Transient Switching Spectrum | Comply to GSM05.05 specifications | ||
| I/O Impedance | 50Ω | ||
| I/O Connector | N-Type (Female) | ||
| Temperature Range | -25°C ~ +55°C | ||
| Power Supply | DC -48V / AC 220V±15%, 50Hz | ||
| Dimensions | 1400mm X 600mm X 600mm (Standard 19-inch cabinet) | ||
| Weight | 55kg | ||
| Remote Monitoring/Control via NMS | Supported | ||
Specifications of CDMA BTS Power Amplifier
| Specifications | |||
|---|---|---|---|
| Working Frequency (customizable) | 460~467.5 MHz / 870~880MHz / 1960~1970MHz | ||
| Power Amplifier Unit | Gain | 12±1 dB | |
| Output Power | 50±2 dBm | ||
| In-Band Ripple | ≤ 1.0 dB | ||
| Bypass Insertion Loss | ≤ 1.2 dB | ||
| Phase Distortion | ≤ 2° (RMS) & ≤ 5° (Peak) | ||
| Whole Equipment | Gain | 11±1 dB | |
| Output Power | 48±1 dBm | ||
| In-Band Ripple | ≤ 1.5 dB | ||
| Bypass Insertion Loss | ≤ 2.5 dB | ||
| Voltage Standing Wave Ratio (VSWR) | ≤ 1.4 | ||
| Frequency Error | ≤ 0.01ppm | ||
| Max. Gain | 12±1 dB | ||
| Gain Adjustment Range | 7±1 dB @ step of 1dB | ||
| Adjacent Channel Power Ratio (ACPR) | ≤ -45dBc @ offset=750kHz ≤ -60dBc @ offset=1.98MHz |
||
| Spurious Emission | < -36dBm @ 9kHz~1GHz < -30dBm @ 1GHz~12.65GHz |
||
| Resistance against Mismatching Load | 10:1 | ||
| Intermodulation Attenuation | ≥ 70dBc | ||
| Downlink/Uplink Power Detection Level | 0~5 V | ||
| Envelope Power of Transmitting RF Carrier | Comply to IS-95 specifications | ||
| Output Modulation Spectrum | Comply to IS-95 specifications | ||
| Transient Switching Spectrum | Comply to IS-95 specifications | ||
| I/O Impedance | 50Ω | ||
| I/O Connector | N-Type (Female) | ||
| Temperature Range | -25°C ~ +55°C | ||
| Power Supply | DC -48V / AC 220V±15%, 50Hz | ||
| Dimensions | 1400mm X 600mm X 600mm (Standard 19-inch cabinet) | ||
| Weight | 55kg | ||
| Remote Monitoring/Control via NMS | Supported | ||