SKU: HPR-GR-900-37W90

High Selectivity Band /Channel Selective

Download Datasheet (PDF)

The EMTS Telecom Services Ltd. Power-Repeaters provide an excellent solution to the problem of poor signal coverage. The Repeaters amplify the signals from mobile phones and base stations and can be used in dead areas where service is poor. GSM-R systems are used extensively for railway communication, both in Europe and Asia. Our GSM-R repeaters are deployed to provide coverage within trains, tunnels and other confined spaces. Our GSM-R produces are easily configured either locally or remotely via a remote or a local, the products supplied in a waterproof IP65 cases. This combination of repeaters permits to reduce dramatically the number of BTS, and then, the total cost of deployment, for a better Quality of Service. The benefits are double: better QoS and better total cost. The repeater is working as a relay between the BTS and mobiles. It receives the low-power signal from BTS via the Donor Antenna, linearly amplifies the signal and then retransmits it via the Service Antenna to the weak/blind coverage area.

EMTS Telecom Services Ltd. offers a comprehensive portfolio of enhanced coverage solutions for the Wireless

Key Features

  •  Supports GSM-R with 37 dBm downlink composite power
  •  Light weight, compact Size and High Performance
  •  Comply with Railway Telecommunications (RT); ER-GSM frequencies; Part 1: ER- GSM additional radio aspects, ETSI TS 102 281 V3.0.0 (2016-02)
  •  Channel or Band selective topology
  •  Cost effective alternative to exclusive BTS solution
  •  User friendly GUI & plug and play installation
  •  Isolation detection function
  •  Low power consumption, linear power amplification to effectively suppress inter-modulation and spurious emission
  •  Smart Automatic Level Control – Ensures output level adjustable continuously
Technical Specifications
Electrical Specification
Items (Uplink) Downlink
Frequency Band (876 – 880 MHz) 921 – 925 MHz
Gain (90± 2dB) 90 ± 2dB
Bandwidth Option A: Channel Selective 2or 4 channels 25KHz Option B: Band Selective
Manual Gain Control 31dB in step of 1dB
Automatic Gain Control >20dB
Ripple in Band ± 1.5 dB typ. For full band
Max. Input Power Without Damage -10 dBm Narrow Band ± 1.5 dB typ.
Composite Output Power (25 dBm) 37 dBm
Intermodulation Products 9KHz~1GHz (≦ -36 dBm) ≦ -36 dBm
1GHz~12.75GHz (≦ -30 dBm) ≦ -30 dBm
Spurious Emission (9KHz~1GHz) ≦ -36 dBm / ≦ -36 dBm
1GHz~12.75GHz (≦ -30 dBm) ≦ -30 dBm
± 400 KHz ≥ 25 dBc
± 600 KHz ≥ 35 dBc
Out of Band Rejection
± 1 MHz ≥ 40 dBc
± 5 MHz ≥ 50 dBc
Noise Figure @ max. Gain ≤5 dB
VSWR 1.5:1
Time Delay 6 μs maximum
Power Supply 220 v ac or 48 vdc
Remote & Control Via GSM /GPRS modem
Local Control Via USB
RF Connector N-Female or 7/16 50 ohm
Dimensions (D x W xH ) 453.6*380.8*270 mm
Weight 35 kg
Environment Conditions IP65
Humidity < 95%
Operating Temperature – -30°C to 55 º C EMTS telecom Services Ltd. is a leading supplier of high-quality RF coverage solutions designed to maximize wireless network areas, office buildings, subways, tunnels and shadowed areas. The EMTS coverage solution supports all major mobile
technologies and standards of wireless Networks.

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