Mozart DDS EVO Compact FM Transmitter with Direct Digital Synthesis technology

The best possible audio quality and the highly improved frequency stability in FM Broadcasting thanks to DDS Technology

CHARACTERISTICS

  • Superior audio quality and sound purity thanks to the Direct Digital Synthesis technology.
  • Suitable for SFN (Single Frequency Network) application, with internal modulation phase adjustment to optimize SFN network setting.
  • The highest AC efficiency, reaching over 70%, obtained by GREEN RF™ technology combined with 6th MOSFET generation.
  • Energy saving: higher efficiency means less energy and operational costs, less heat generated and cooling costs.
  • Low maintenance costs, thanks to the easy access to all components, externally accessible cooling air filters to allow instant cleaning and replacement, 5 minutes replaceable fans without stopping the transmitter to keep you always on air.
  • High Reliability: very high MTBF for RF and power supply modules.
  • Reduction of transport costs and simplified logistics: compact design and low weight
  • Highest frequency stability due to DDS technology.
  • New user-friendly remote management: built-in Web server and SNMP, no software to install, easy access to setup and monitoring of all main parameters to grant the full control of the equipment even from remote and to save your time.
  • Built-in Dynamic RDS encoder: supports PI, PS, TA, TP, MS, PTY, PTYN, TA custom, up to 25 AF, DI, Dynamic PS scrolling. Synchronized with UECP serial protocol.
  • Customized Warnings and Alarms: easy user configuration for warnings and alarms.

HIGHLIGHTS

  • Automatic audio switch: easy setting of priority list of audio sources to grant the automatic switch to audio input backup.
  • 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).
  • Ideal for N+1 configuration use: the presence of multiple memory profiles allows the customer to store the main configuration parameters, with easy user recall. This is ideal in case of N+1 systems for a quick recover of the failed transmitter configuration to setup the reserve.
  • Storing configuration: actual configuration can be downloaded, stored and uploaded in another unit for easy recovery.
  • Firmware upgradeable 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.
  • 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.

RF FEATURES 
RF Output impedance50 Ω
Frequency range87.5 to 108 MHz in 10 kHz steps
Type of modulationF3E / F8E direct FM at the carrier frequency
Modulation modeMono, Stereo, Multiplex, SCA, RDS/DARC, AUX, AES/EBU (input selected by front panel)
Frequency deviation±75 kHz =100 %, ±150 kHz capability
Frequency generationNCO (Direct Digital Synthesis)
Frequency stability ± 1ppm/year
RF harmonicsExceeds CCIR/FCC requirements
RF spurious Exceeds CCIR/FCC requirements
Pre-emphasisFlat/50/75µs selectable
Stereo operationCCIR 450/S2 "pilot tone system"

STEREO OPERATION 
Audio Response(30Hz ÷ 15kHz) <0.3dB
Modulation distortion< 0.3% @ 75kHz deviation
SNR> 80 dB @ 75kHz deviation
Common mode rejection> 60 dB
Crosstalk > 60 dB (30Hz ÷ 15kHz)

MONO OPERATION 
Audio Response(30Hz ÷ 15kHz) <0.3dB
Modulation distortion< 0.3% @ 75kHz deviation
SNR> 80 dB @ 75kHz deviation

MPX OPERATION (External coder) 
Audio response30Hz – 65 kHz <0.1 dB
65 kHz - 95kHz <0.5 dB
Modulation distortion< 0.3%
SNR> 75 dB

FunctionInput level /Adjustment rangeImpedanceTypeConn.
L-6 ÷ +6 dBu20 kΩUnbal.XLR
600 ΩBal.
R-6 ÷ +6 dBu20 kΩUnbal.XLR
600 ΩBal.
Composite MPX-6 ÷ +12 dBu20 kΩUnbal.BNC
AES/EBU-24 ÷ 0 dBFS110 ΩUnbalXLR

ENVIRONMENT 
Storage temperature -5 °C TO + 50 °C
Operating temperature 0 °C TO + 45 °C
Relative non-condensing humidity90 % MA
Max operating altitude2500 mt.

SIZE & ELECTRICS 
Power supply230V single phase AC (+/-15 %) 50-60Hz/ ± 5%
CoolingForced air, with external fan
Service24/24h

MODELOUTPUT POWEROUTPUT CONNECTORDIMENSIONS
MOZART DDS EVO 3030 WN1U
MOZART DDS EVO 5050 WN1U
MOZART DDS EVO 100100 WN2U
MOZART DDS EVO 300300 WN2U
MOZART DDS EVO 500500 W7/162U
MOZART DDS EVO 10001000 W7/163U

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