Helios® Digital Pre-Distortion Multi-Carrier Power Amplifier (DPD-MCPA) is designed to compensate the cable and combination loss, and enhance BTS downlink coverage signal strength through the Multi-Carrier Power Amplifier; The uplink signal is amplified by the TMA or the built-in LNA with high sensitivity. It keeps balance of the uplink and downlink as well as providing improved sensitivity of BTS, extended coverage area of BTS and better network service quality.

Features
1. Support amplifying Multi-Carrier signals simultaneously by adopting Digital Pre-Distortion Multi-Carrier Power Amplifier (DPD-MCPA);
2. Digital Pre-Distortion technology ensures super linearity of Power Amplifier, IMD3 reaches -55dBc;
3. The Power Amplifier with high efficiency, Low Power Consumption meet the Energy-Saving "Green Action Project";
4. Support BTS capacity expansion without adding any facility
5. Equipment applicable to any working environment by adopting automatic temperature control technology and " Three Anti" measures
6. Automatic By-pass Function maintains the BTS working in case of DPD-MCPA is abnormal
7.2 RS232 or RJ45 ports provide links to laptop for local setting and monitoring by built-in web interface.
8. Built-in wireless modem (Option) for remote monitoring by SMS, GPRS or TCP/IP.
9. Details repeater parameters and status can be monitoring by built-in web interface, such as RSSI, temperature, output power level, gain, ATT, return loss, VSWR etc.
10. Support upgrading firmware remotely by GPRS.

Technical Specifications
Frequency Range (Customized):
Uplink: 824-849MHz/1920-1980MHz
Downlink: 1920-1980MHz/2110-2170MHz
Output Power: Min. +50dBm(100Watts)
Carriers: 4-12 Carriers
Working Bandwidth: Various bandwidth is available upon request
Gain: 12 dB(UL) &15dB(DL) Adjustable in 1dB step
VSWR: < 1.5
Ripple in Band: Max +/- 1.5dB

In-band Inter Modulation Attenuation: -55dBc for multi-carrier (typical)
RF Connector: 7/16DIN-type Female
I/O Impedance: 50 ohm
Noise Figure: Max 2.5dB
Group Time Delay: Max 5µ S
Temperature Range: -25 degree Celsius to +55 degree Celsius
Relative Humidity: Max 95%
MTBF: Min. 100000 hrs
Power Supply: DC -48V / AC220V (+/-15%), 50Hz
Power Consumption: Max 300W
NMS Monitor Function: Real-time alarm for Door Status, Temperature, Power Supply, VSWR, Output Power, Gain, Uplink ATT, Downlink ATT and etc.

Remote Control Module (Optional): RS232 or RJ45 + Wireless Modem + Chargeable Li-ion Battery
Approvals and Tests: EN 60950 & ETSI 301 489-1 & ETSI 301 908-11
Imension:
774mmX552mmx304mm
Weight: 45Kg