MOZART NEXT SERIES

Innovative technology for NEXT generation FM Transmitters

MAIN CHARACTERISTICS:

  • 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.

MODEL

OUTPUT POWER (W)

CONNECTOR

DIMENSION

MOZART NEXT 1000

1000

DIN 7/16

19” x 2U

MOZART NEXT 2000

2000

7/8”

19” x 3U

MOZART NEXT 3000

3000

7/8”

19” x 3U

MOZART NEXT 3500

3500

7/8”

19” x 3U

MOZART NEXT 6000

6000

7/8”

19” x 4U

MOZART NEXT 7000

7000

1+5/8”

19” x 5U

GENERAL

Frequency range

87.5 to 108 MHz adjustable with 10kHz step

Output impedance

50 Ω unbalanced

Deviation capability

±75 kHz, up to ± 180 kHz with distortion < 0.5%

Short term stability

± 1 ppm from -5 to +45 °C

RF harmonics

Exceeds CCIR/FCC requirements

RF spurious

Exceeds CCIR/FCC requirements

Pre-emphasis

0, 25, 50, 75 us (selectable)

Modulation monitoring

BNC connector

Pilot tone

Phase and Amplitude adjustable from display and WEB interface

Log file

Up to 200 dated events available from display and up to 64000 dated events available from web interface

AUDIO INPUTS

Modulating input signal

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

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

MONO

Audio input levels for +/- 75 kHz deviation

Adjustable from -9 to +18 dBu

Audio response

±0.3 dB (30 Hz to 15 kHz)

THD+N on encoded channels

< 0.06% ( typ. 0.03% ) (30 Hz to 15 kHz)

Audio Impedance

10 Ω Balanced or 600 Ω balanced

Audio connector

XLR

STEREO

Audio input levels for +/- 75 kHz deviation

Adjustable from -9 to +18 dBu

Audio response

±0.3 dB (30 Hz to 15 kHz)

THD+N on encoded channels

< 0.03% (30 Hz to 15 kHz)

Audio Impedance

10 kΩ Unbalanced or 600Ω Balanced

Audio connector

XLR (Left & Right)

MPX (External coder)

Audio input levels for +/- 75 kHz deviation

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

Audio response

±0,15 dB (30 Hz to 100 KHz)

THD+N on encoded channels

< 0.03% (30 Hz to 100 kHz)

Audio Impedance

> 5 kΩ Unbalanced

Audio connector

BNC

RDS/SCA/AUX (with separated connectors)

Audio input levels for +/- 75 kHz deviation

Adjustable from -19.5 to +7.5 dBu

Audio Impedance

2 kΩ (others on request) Unbalanced

Audio connector

BNC

AES/EBU

Audio input levels for +/- 75 kHz deviation

Adjustable from -15 to 0 dBFS

Audio Impedance

110 Ω

Audio connector

XLR

AC power requirements

AC supply voltage

230 VAC single phase / 400 VAC three-phase

AC supply frequency

50 Hz or 60 Hz

Power factor

> 0.9

ENVIRONMENT

Cooling

Forced air

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%

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