Public Safety Digital Single Band RF Repeater

Helios® Public Safety Digital Single Band RF Repeaters employ Software Defined Radio (SDR) technology based upon our FPGA & DSP Platform. This achieves high out of-band rejection and high intra-Ca

Helios® Public Safety Digital Single Band RF 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. Software based “time slot AGC” and “time slot squelch” mechanism for channelized repeaters which reduces noise transmitted to the base station thus improving overall network performance and selectivity.

Helios® Public Safety equipment helps to extend the coverage of Public Safety and Critical secure Communications Networks. Helios offers complete and integrated solutions for TETRA, DMR, PMR, P25 and LTE Networks to ensure coverage of major public infrastructure; such as police stations, garages, power plants, exhibition halls, airports, sports arenas, road and rail tunnels, hotels, convention centers, shopping malls, office towers, parking lots etc.

The Repeater is connected via coaxial cable to a Donor Antenna and Service Antenna or DAS. The Donor Antenna is placed outside the building where it has access to a BTS signal, and the Service Antenna or DAS are placed in the building where they can extend radio coverage to the areas lacking coverage.


Key Feature

  • Single Band operating supporting major public safety bands including 400MHz, 700MHz or 800MHz.

  • Supports all major public safety technologies include TETRA, DMR, PMR, P25 and LTE.

  • Band Selective or Channelized based upon Software Defined Filtering, and BW or number of filters can be tunable or upgradeable by software.

  • SOC & embedded architecture enable delivery of significantly improved network coverage with very low power consumption.

  • Supports upgrading filter parameters in case of frequency re-farming by software.

  • Better out of band rejection than analog SAW filters.

  • Supports TEDS with 60KHz, 120KHz and 180KHz Filter Bandwidths for Channelized repeater 

  • Supports Digital Time Slot based AGC and Squelch functionality for Channelized repeater

  • Supports Oscillation Detection and Mitigation Function

  • Optional ICS function for band selective filter design.

  • RJ-45 Port to support IP Web Browser GUI for Local Control

  • External Ethernet or Wireless Modem via 2nd RJ-45

  • SNMP v3 + MIB File supported

  • Built-in wireless modem as option to send SNMP trap

  • Dry Contact Input Port supported

  • Built-in 2G or 3G or 4G wireless modem as option for SNMP trap function.

  • High working Gain min. 87dB and cost-effective solution making coverage more affordable for small building or driving a DAS in large buildings.

  • RF composite power +33dBm to +37dBm for medium & large coverage application.

  • Aluminum-alloy casing with IP-65 protection and cool system without fan.

  • Compact size and light weight, easy to install on wall or pole.


Application

To expand public safety signal coverage of fill signal blind area where signal is weak or unavailable.

  • Outdoor: Airports, sports arenas, road and rail tunnels etc.

  • Indoor: Hotels, police stations, garages, power plants, exhibition halls, convention centers, shopping malls, office towers, parking lots etc.


SPECIFICATION
  • Frequency

    Single band operating supporting all major public safety frequency bands including 400MHz, 700MHz or 800MHz

  • Bands Support

    Supports all major public safety technologies include TETRA, DMR, PMR, P25 and LTE.

  • Filter Design

    Band Selective or Channelized based upon Software Defined Filtering, and BW or number of filters can be tunable or upgradeable by software.

  • Max Gain

    87dB (+/-2dB)

  • Ripple in Band

    +/- 2.5dB

  • Max RF Composite Power

    +33dBm, +35dBm, +37dBm

  • AGC Range

    Max 30dB

  • Noise Figure

    Max 6dB @ Max Gain

  • Time Delay

    Max 12µs (depending on filter bandwidth and required adjacent channel rejection)

  • Local Monitor & Control

    LED Indicator and Laptop via IP Web Browser GUI and RJ-45 port to monitor & Control Power on/off, Over Power, Oscillation Detection, Isolation Measurement, Door Status, Temperature, Power Supply, VSWR, Output Power, Gain, ATT and etc.

  • Remote Monitor & Control

    Via Helios Netview OMC Software + Option embedded 2G/3G/4G Wireless Modem + Chargeable Li-ion Battery, SNMP V.3 compatible, Remote IP viewing +External Modem

  • Connector

    2*N-Type Female, 2*RJ-45 Port

  • Mounting Type

    Wall Mount or Pole Mount

  • Power Supply

    110/240VAC

  • Complies with

    ETSI EN 302 561 V2.1.1, ETSI TS 101 789-1 V1.1.2 (2007-04), EN 301 489-05 V2.2.0, ETSI TS 136 106