LTE-R Digital Band / Channel Selective Pico Repeaters
As a common transportation, Railways transportation increases the carrying capacity, shortens the transportation time and decreases the transportation cost which improve the quality of transportation services, yield greater customer satisfaction, and help to create the socioeconomically balanced societies. And this highly efficient transport mode creates significant challenges in terms of investment, technology, industry, and environment.
To handle increasing traffic, ensure passenger safety, and provide real-time multi-media information, GSM-R communication system and more advanced LTE-R communication system is required. GSM-R is essentially the same system as the GSM but with railway-specific functionalities. The GSM-R network serves as a data carrier for the ETCS, which is the signaling system used for railway control. To provide improved and more efficient transmission for railway communication, LET-R has many advantages over GSM in terms of capacity and capabilities. LTE-R which is based LTE standard will replace GSM-R in the future.
HELIOS® GSM-R/LTE-R Digital Single Band Repeaters employ Software Defined Radio (SDR) technology based upon our FPGA & DSP Platform. This achieves high out of-band rejection and high intra-Carrier interference compared to traditional Analog IF SAW filters. It also enables on-the-fly filter change/upgrade by software without an expensive hardware upgrade.
- LTE Standards Compliant
- SDR (Software Define Radio) technology based upon our FPGA & DSP (Digital Signal Processing) Platform
- Supports upgrading filter parameters in case of frequency re-farming by software
- SOC & embedded architecture enables delivery significantly improved network coverage with very low power consumption
- Supports tunable sub-band or channelized filter design
- Better out of band rejection than analog SAW filter
- Built-in USB or RJ-45 interface for local control
- Built-in automatic intelligent UL/DL Gain control
- Light weight and compact size, flexible wall and pole mount.
- RoHS Compliant
Frequency Range (Customized): 450MHz, 800MHz or 1.8GHz
Max Composite Output Power: 20±2dBm/20±2dBm
Filters Design: 1.4-20 MHz tunable or Channelized filter
AGC Control Range: Min 25dB
Gain Control Range: 30dB
Ripple in Band: Max ±2dB
I/O Impedance: 50 ohm
Uplink Noise Figure: Max 7dB
Group Time Delay: Max 8µS
MTBF: Min. 50000 hrs
Power Supply(External): AC220V (+/-15%), 50Hz
Power Consumption: Max 20W
Monitoring: Real-time alarm for Temperature, Input Under Power, Input Over Power and etc.; Parameters monitoring for Output Power, Gain, Uplink ATT, Downlink ATT, etc.
External and Antenna Connection
RF Connector: N-type Female
Local Control: Local control via USB interface
Temperature Range: -25℃ to +55℃
Humidity Range: Max 95%
IP Rating: IP43
Mounting Type: Wall mounting
Weight: Max 1.5kg