DB PFG Next 3500

3.500 W solid state FM transmitter composed of: MOZART 30, KFG NEXT 3500, 19"x4U occupancy.

FM Modular Transmitter PFG NEXT

Ultra-high efficiency line in FM Broadcasting industry with hot swappable PSU

MAIN CHARACTERISTICS:

• The GREEN RF™ technology, combined with new 65:1 device, is the latest evolution of the world-famous patented COLD-FET™ technology applied on DB’s transmitters.

• Ultra high RF efficiency (>70%):

• Hot Swappable Power Supply Units: It makes easier the serviceability and the maintenance. Their tool-less and instant installation from front panel make the PFG NEXT transmitters ideal for critical environment systems where no down time can be tolerated.

• Automatic Current Sharing (ACS): the automatic current balancing system is present on each unit to grant a perfect load distribution and very best power supply operating conditions.

• Versatile configuration, high redundancy: different configurations are available for model and number of power supply units installed. They grant the redundancy and a versatile configuration for a very high efficient operation in each condition.

• Hot Plug Version: all PFG NEXT transmitters over 5 kW can be equipped optionally with the hot plug system to instantly extract the amplifier modules with transmitter in full power.

• Low maintenance costs: thanks to the easy access to all components, external cooling air filters, very high MTBF for RF and power supply modules.

• High frequency stability in short and long terms assured by Digital Phase Locked Loop circuit with low drift VCTCXO.

• Complete WEB SERVER SNMP remote control, available as an option.

• Frequency agile broadband: settable directly from the LCD front panel with 10 KHz steps without needing any tuning tools.

• Maximum security: Meets or exceeds all the international safety standards as the electrical specifications.

HIGHLIGHTS:

• MSE™ (Magnetic Sound Enhancer): a magnetic barrier that protects the VCO, the heart of FM modulator, and increases the sound quality.

• 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.

• Intelligent protection system: it reduces the output power without on-air interruption, keeping the RF devices always within the safe operating parameter.

• AAD™ technology: it prevents corrosion from air moisture and increases reliability.

• 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.

EFFICIENCY ENHANCEMENT

FM Transmitter PFG Series design was optimized to get minimum losses of the passive elements and excellent performances of the active elements to increase the AC efficiency up to more than 70%.