PFG NEXT SERIES 

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.
  • 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): A software controlled automatic current balancing system (ACS) 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.
  • Ultra high RF efficiency (>70%)
  • Meets or exceeds all the international safety standards as the electrical specifications.

HIGHLIGHTS:

  • MSE™: Magnetic Sound Enhancer is 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.
  • Easy maintenance, without off-air: the power supply plug-in modules and hot-plug fans can be safely and instantly removed from the front panel without interrupting the transmission. 

MODEL

OUTPUT POWER (W)

OUTPUT CONNECTOR

RACK UNIT

RACK SUPPLIED

PFG NEXT 1000

1000 W

DIN 7/16”

​19” x 3U

No rack

PFG NEXT 2000

2000 W

EIA ​7/8”

​19” x 4U

No rack

PFG NEXT 3000

3000 W

EIA ​7/8”

​19” x 4U

No rack

PFG NEXT 3500

3500 W

EIA ​7/8”

​19” x 4U

No rack

PFG NEXT 6000/1x

6000 W

EIA ​7/8”

19” x 4U

No rack

PFG NEXT 6000/2x

6000 W

EIA ​7/8”

19” x 19U

19” x 19U

PFG NEXT 7000/1x

7000 W

EIA ​1+5/8”

19” x 5U

No rack

PFG NEXT 7000/2X

7000 W

EIA ​1+5/8”

19” x 19U

19” x 19U

PFG NEXT 10000/2x

10 kW

EIA 1+5/8”

19” x 24U

19” x 24U

PFG NEXT 10000/4x

10 kW

EIA 1+5/8”

19” x 34U

19” x 34U

PFG NEXT 12000/2x

12000 W

EIA ​1+5/8”

19” x 24U

19” x 24U

PFG NEXT 12000/4x

12000 W

EIA ​1+5/8”

19” x 34U

19” x 34U

PFG NEXT 15000

15 kW

EIA 3+1/8”

19” x 34U

19” x 34U

PFG NEXT 20000

20 kW

EIA 3+1/8”

19” x 34U

19” x 34U

PFG NEXT 25000

25 kW

EIA 3+1/8”

19” x 34U

19” x 34U

PFG NEXT 30000

30 kW

EIA 3+1/8”

2 rks 19” x 41U

2 rks 19” x 41U

PFG NEXT 40000

40 kW

EIA 4+1/2”

2 rks 19” x 41U

2 rks 19” x 41U

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%.

GENERAL

Frequency range

87.5 to 108 MHz adjustable with 10kHz step

Output impedance

50 Ω

Deviation capability

±75 kHz, up to ±200 kHz with distortion < 0.5%

Pre-emphasis

0, 25, 50, 75 us (selectable)

Synchronous AM

(ref. 100% mod.) < - 58 dB

Asynchronous AM

(ref. 100% mod.) < - 50 dB

RF Probe

-50 dBc, 50 Ω, BNC

Power stability

< 2% (ALC)

DC to RF efficiency

83% typ

Modulation monitoring

BNC connector

Pilot tone

hase and Amplitude adjustable from display and WEB interface

Log file

Up to 200 dated events memorized in the transmitter memory, accessible from display and WEB interface

AUDIO INPUTS

Modulating input signal

Mono, Stereo (Left, Right, Left + Right), Encoded stereo (MPX), SCA, RDS, AUX, Digital AES/EBU

Input connectors

Left (XLR connector), Right (XLR connector), MPX (BNC connector), SCA (BNC connector), RDS (BNC connector), AUX (BNC connector), AES/EBU (XLR connector)

AUDIO INPUT LEVELS FOR ± 75 KHZ DEVIATION

Mono

Adjustable from -9 to +18 dBu

Stereo

Adjustable from -9 to +18 dBu

MPX

Adjustable from -6 to +6 dBu or from +6 to +18 dBu (selectable at order)

AES/EBU

Adjustable from -15 to 0 dBFS

Input sensitivity adjustment

With 0,05dB steps by front panel display interface or by WEB interface

Limiter

It can be enabled/disabled and adjusted from 30 kHz to 180 kHz by front panel display and WEB interface Internal RDS coder

Synchronized

with the 19kHz pilot of the internal stereo coder or the 19kHz pilot of an external MPX signal

AC POWER REQUIREMENTS

AC supply voltage

115 / 230 VAC ± 15%, single-phase or 230/380 VAC ± 15%, three-phases

AC supply frequency

50 Hz or 60 Hz, ±5%

Power factor

> 0.9

ENVIRONMENT

Cooling

Forced air with built-in axial fans / Liquid cooling (optional)

Service

Continuous 24/24h

Operating temperature

-5°C to +45°C Derate 3°C per 500 m above 2000 mt asl

Relative humidity

Up to 95%

Company

DB Elettronica Telecomunicazioni S.p.A.

VAT Number IT00710830282

REA PD N.131067


Headquarter:

Riviera Maestri del Lavoro, 20/1 - Padova - 35127 Italy
Tel: +39 049 8700588 - Fax: +39 049 8700747
E-mail : info@dbbroadcast.com

© 2015 DB Elettronica Telecomunicazioni S.p.A.. All rights reserved.