FM Broadcast Infrastructure

FM Broadcast Equipment

In the broadcasting sector, it is a critical factor of success to select the solution that fits your business model best, and that possesses the most advanced equipment and systems to put you ahead of your competitors. So your partner must be specialised while still proposing a broad range of products and solutions. But you can't have a single company dedicating all efforts to specialising and at the same time provide a wide range of products and solutions. For this reason, we founded DB Group, as we wanted to offer you the best of both worlds.

DB is a leader in digital and analog radio FM transmitters. With more than 40 years of experience, they design their products to offer you the maximum AC efficiency of the units and the best quality of the audio signal. The GREEN RF™ technology is combined with new 65:1 devices, latest evolution of the world-famous patented COLD-FET™ technology applied on DB's radio transmitters.


Key Features

  • The GREEN RF™ technology, combined with new 65:1 devices, is the latest evolution of the world-famous patented COLD-FET™ technology applied on DB's transmitters.
  • AUTOMATIC CURRENT SHARING (ACS): automatic current balancing system, perfect load distribution, best power supplies operating conditions.
  • Maximum Redundancy: due to optimized ACS system, extremely low output power loss in case of power supply failure. In dual power supply configuration power loss in case of one power supply failure will be less than 35%.
  • Instant replacement of the power supplies: easy maintenance, without off-air. The power supply plug-in modules can be safely removed from the front panel without interrupting the transmission.
  • FM transmitter Low maintenance costs thanks to the easy access to all components, external cooling air filters, very high MTBF for RF and power supply modules.
  • Compact design and low weight to reduce transportation costs and simplify logistics.
  • FM transmitter Complete WEB SERVER SNMP, GSM or SMS remote control, available as option.
  • Touch screen display (optional): colorful touchscreen bypassable for manual control to guarantee perfect operation in any transmitter site condition. User friendly, simple and intuitive.
  • High efficiency cooling system: the air cooling system limits the heat-sink temperature rise only max 10°C above ambient temperature. This guarantees perfect functioning aven in sites with extreme climate conditions and high temperature.
  • Meets or exceeds all the international standards for safety and electrical specifications.

Highlights

  • FM transmitter MSE™: Magnetic Sound Enhancer is a magnetic barrier that protects the VCO, the heart of FM modulator, and increases sound quality.
  • Stereo Generator: high performance built-in digital stereo coder provides separation typical > 65dB.
  • FM transmitter High frequency stability in short and long terms assured by Digital phase locked Loop circuit with low frift VCTCXO.
  • Frequency Agile Broadband, settable directly from the LCD front panel with 10 KHz steps without need for tuning tools.
  • Signal/noise ratio >80dB assures the highest audio quality.
  • Input sensitivity and output deviation adjustable with high precision of 0,05dB through front panel or remotely by web interface.
  • FM transmitter level and phase of the pilot tone adjustable from the front panel and Web interface.
  • AES/EBU digital stereo audio interface available as option.
  • Powerful modulation limiter keeps the maximum frequency deviation within international requirements to avoid overmodulation and adjacent channels interference. Limiter levels can be set from the front panel.
  • FM transmitter Switch-mode power supply with power factor control. Highly efficient and widely over-rated power supply modules insure low heating, low AC power consumption and superior reliability. The power factor control circuitry meets the international requirements for mains network disturbances.
  • FM transmitter High efficiency cooling system. Thanks to the air cooling system, the heat-sink temperature can rise only about 10°C above ambient temperature. This guarantees the proper functioning even in sites with extreme climate conditions and high temperature.
MOZART Series Specifications

Characteristics

  • Superior audio quality and sound pureness thanks to the Direct Digital technology
  • Suitable for SFN networks application, with internal modulation phase adjustment to optimize SFN network setting.
  • The highest AC efficiency, reaching over 70% for power over 1 kW, obtained by GREEN RF™ technology.
  • Low maintenance costs, thanks to the easy access to all components, externally accessible cooling air filters and fans, very high
  • MTBF for RF and power supply modules.
  • Reduction of transport costs and simplified logistics thanks to its compact design and low weight.
  • Highest frequency stability due to Direct Digital technology
  • Complete WEB SERVER or SNMP Remote Control*.
  • Frequency Agile. Broadband with 1 KHz step, set by software via LCD front panel display or via remote control without any tuning needing.

Highlights

  • Stereo Generator, high performance built-in digital stereo coder provides separation typical > 75dB and Signal/Noise ratio >90dB
  • assuring the highest audio quality.
  • Input sensitivity and output deviation adjustable with very high precision (0,1dB) through front panel display or remotely by web interface.
  • AES/EBU, digital stereo audio interface.
  • Dynamic RDS*, built-in dynamic RDS coder.
  • Automatic Audio switch, to select input signals and set the input program priority.
  • Powerful modulation limiter, keeping the maximum frequency deviation within international standards requirements, to avoid over modulations and adjacent channels interferences (the limiter can be soft or hard, threshold easily adjustable via web GUI interface).
  • Presence of multiple memory profiles, to store the main configuration parameters, with easy user recall.
  • Storing configuration, with the actual active memory configuration that can be downloaded, stored and uploaded in another unit to set it with the same configuration without any other adjustment.
  • Firmware upgradeable, locally (by USB) or remotely (by WEB GUI).
  • Log file, with every TX alarm event tracked. The Log file can be saved in the PC in common text format. An email can be sent in case of alarm, with the status of the unit and log file.
  • Daily scheduler, available to manage different output power level scheduled setting during the day.
  • Switch-mode power supply, highly efficient and widely over-rated power supply modules ensuring low heating, low AC power consumption and superior reliability. The PFC circuitry meets all international requirements for mains network disturbances.
  • High efficiency air cooling system, with heat-sink temperature rising only max 10°C above ambient temperature. This guarantees perfect functioning even in sites with extreme climate conditions and high temperatures.
  • Fast FANS replacement, with amplifier modules equipped with external easily accessible redundant fans to allow instant cleaning and replacement, without opening or removing any module and without affecting in any way the on-air transmission.
Mozart DDS Specifications


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DB Elettronica

Specialised in solid state technologies for analogue and digital FM Radio and Television, analogue and digital microwave links, remote control and management systems, antennas and accessories. DB can offer its customers transmitters, antennas, turnkey solutions for radio and television studios, with training in factory or on-site, coverage study of installations and pre/after sales support.

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