PRODUCTS

Overview:

FM Broadcasting Digital Fiber Repeater to extend the coverage of FM radio networks in infrastructures like airports, tunnels, shopping centers, exhibition halls, convention centers, underground car parks, mines and galleries, etc.

 FM Broadcasting Digital Fiber Repeater  is a two-tier architecture consisting of the Master Units (MU) and Remote Units (RUs). They are utilizing a Software Define Radio (SDR) and centralized digital CPRI distributed architecture. The Master Unit can be operating on two roles simultaneously as both Off-Air Repeater  and Optical Master Unit. The Master Unit will first digitizes the FM radio signal received by Donor Antenna by ADC (Analog-Digital-Converter) and filtered out desired broadcasting channels by digital filters in FPGA. Then convert the digitized signal to a digital CPRI data stream, the digital CPRI packet data stream can be transported via single mode fiber and received by the Remote Units. The RUs then convert the digital CPRI packet data stream back to RF and amplify the signal for delivery to the antennas or Leakage cable.

The all-digital platform with ultra-wide bandwidth RF front-end design and modular architecture enables multiple network topologies including star, chain and hybrid to cater to different deployment scenarios. These network topologies provide reduced fiber plant usage and installation cost, and effective fiber loop redundancy configurations.

FM Broadcasting Digital Fiber Repeater  includes an Emergency Message Break-in facility enabling the center operators sending emergency messages inside the tunnel tubes or underground. In emergency situations, a pre-recorded or live voice message can be sent using the car radio to the drivers instead of the normal radio signal in tunnel or underground car parks etc.

Product Features:

50. Full digital software and hardware platform based on SDR technique
50. Supports digital CPRI optical fiber transport system
50. Support up to 16 FM radio channels in a single enclosure
50. Advanced technology and high equipment integration. Single equipment includes signal amplification, digital frequency selection, digital frequency shift, FM signal modulation and demodulation and other functions.
50. There are many channels, including 16 channels, 32 channels, 40 channels and other specifications. You can also customize the whole channel group.
50. Master Unit has four SFP+ digital optic ports and supports up to 32 RUs by star, chain, ring and hybrid network topologies
50. Support automatic/manual optic delay aligning and compensate to reduce multipath interference
50. The gain of each channel can be adjusted independently, which can realize the uneven reception of signals from each channel in the air, but the output of each channel can reach the same functional requirements.
50. Support monitor and configure Remote Unit from Master Unit
50. Support an Emergency Message Break-in facility enabling the tunnel operators sending emergency messages inside the tunnel
50. USB port or RJ-45 Port as LAN port to support GUI for local control or lan remote control.
50. Option  Built-in a 2G/3G/4G wireless modem for remote monitoring by SMS or 4G Data Link
50. Details repeater parameters and status can be monitoring by built-in GUI interface, such as RSSI, temperature, optical link, PA switch, output power level, gain, ATT, VSWR etc.
50. Option SNMP V2 & V3 +MIB file supported
50. Option Dry Contact for Alarm External
50. Master Unit adopts standard 19” Rack casing enclosure or IP65 rating cabinet.
50. Remote Unit adopts IP65 rating cabinet with convection cooling, can wall or pole mount.
50. All nameplates are laser engraved, beautiful, clear and not easy to wear.

Details: Please contact us