Digital FM Transmitter | Mozart DDS
MAIN FEATURES:
Digital FM Transmitter Mozart DDS. 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.
Uninterrupted service thanks to an intelligent protection system that reduces the output power without on-air interruption, keeping the RF
devices always within the safe operating parameters in case of:
- Load mismatching
- Environmental over-temperature
- Cooling failure
- Amplifier breakdown
Compact FM Transmitter Mozart Series
Compact Mozart FM transmitters, exciter and transmitter, are the latest audio excellence in FM Broadcasting industry with revolutionary Audio and RF technologies.
MAIN 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.
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 High frequency stability in short and long terms assured by Digital Phase Locked Loop circuit with low drift VCTCXO.
FM transmitter Complete WEB SERVER SNMP, GSM or SMS remote control, available as option.
FM transmitter Complete remote management via WiFi with WiFi Touch, available as option.
FM transmitter External reference oscillator, available as option: 10 MHz.
Frequency Agile Broadband, settable directly from the LCD front panel with 10 KHz steps without need for tuning tools.
Meets or exceeds all international standards for safety and electrical specifications.
MODEL | OUTPUT POWER (W) | DIMENSIONS |
Mozart 30 | 30 | 19"x1U |
Mozart 50 | 50 | 19"x1U |
Mozart 100 | 100 | 19"x2U |
Mozart 300 | 300 | 19"x2U |
Mozart 500 | 500 | 19"x2U |
Mozart 1000 | 1000 | 19"x2U |
Mozart 2000 | 2000 | 19"x3U |
Mozart 3000 | 3000 | 19"x3U |
GENERAL | |
Frequency Range | 87.5 to 108 Mhz adjustable with 10Khz step |
Output impedance | 50 Ω |
Output connectors | N from 30W up to 500W |
DIN 7/16 for 1kW | |
EIA 7/8" for 2kW and 3kW | |
Deviation capability | ±75 kHz, up to ±200 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 saved 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 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) | Synchronized with the 19kHz pilot of the internal stereo coder or the 19kHz pilot of an external MPX signal |
THD+N on encoded channels | < 0.06% ( typ. 0.03% ) (30 Hz to 15 kHz) |
Audio Impedance | 600Ω 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) |
THD+N on encoded channels | < 0.03% (30 Hz to 100 kHz) |
Audio Impedance | > 5 kΩ Unbalanced |
Audio connector | BNC |
RDS/SCA/AUX | |
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 | 115 / 230 VAC ± 15%, single-phase |
AC supply frequency | 50 Hz or 60 Hz, ±5% |
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% |
Modular FM Transmitters
FM Transmitters PFG Series is a range of modular FM transmitters designed to operate in the whole 87.5 – 108 MHz frequency range for FM radio broadcasting, with power range 100W - 40kW.
MAIN FEATURES:
Each FM Transmitter PFG Series includes the following elements:
- Exciter.
- Amplifier.
- Control logic unit.
- External cooling unit, in case of liquid cooling system.
MODEL | OUTPUT POWER | OUTPUT CONNECTOR | UNIT\RACK | SUPPLIED RACK |
PFG 100 | 100 W | N | 19" x 3U | No rack |
PFG 300 | 300 W | N | 19" x 3U | No rack |
PFG 500 | 500 W | N | 19" x 3U | No rack |
PFG 1k | 1000 W | DIN 7/16 | 19" x 3U | No rack |
PFG 2k | 2000 W | EIA 7/8" | 19" x 4U | No rack |
PFG 3k | 3000 W | EIA 7/8 | 19" x 4U | No rack |
PFG 6k/1x | 6000 W | EIA 7/8" | 19" x 5U | No rack |
PFG 6k/2x | 6000 W | EIA 1+5/8" | 19" x 19U | 19" x 19U |
PFG 8k | 8000 W | EIA 1+5/8" | 19" x 24U | 19" x 24U |
PFG 10k/2x | 10 kW | EIA 1+5/8" | 19" x 31U | 19" x 31U |
PFG 10k/4x | 10 kW | EIA 1+5/8" | 19" x 31U | 19" x 31U |
PFG 15k | 15 kW | EIA 3+1/8" | 19" x 41U | 19" x 41U |
PFG 20k | 20 kW | EIA 3+1/8" | 19" x 45U | 19" x 45U |
PFG 30k | 30 kW | EIA 3+1/8" | 2 racks of 19" x 41U | 2 racks of 19" x 41U |
PFG 40k | 40 kW | EIA 4+1/2" | 2 racks of 19" x 45U | 2 racks of 19" x 45U |
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 | Phase 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% |
FM Amplifier KFG Series
FM amplifiers KFG series is designed to operate in the whole 87.5 – 108 MHz frequency range for FM radio broadcasting.Power range from 100W to 40kW.
MAIN FEATURES
GREEN RF™ technology
The GREEN RF™ technology, combined with the new 65:1 devices, is the latest evolution of the world-famous patented COLD-FET™ technology. The main advantages are:
- High RF efficiency (>70%).
- Higher safety.
- Higher reliability.
- Lower heating.
- Lower AC power consumption.
Hot-Plug Solution (optional)
All FM amplifiers KFG series over 5kW can be equipped optionally with the hotplug system to instantly extract the amplifier modules with amplifier in full power. All the amplifier modules slide on telescopic rails and can be completely extracted and removed for on-air maintenance or replacement without disconnecting any cable and without interrupting the transmitter operation.
Uninterrupted service
An intelligent protection circuit reduces the output power without on-air interruption, keeping the RF devices always within the safe operating parameters in case of:
- Load mismatching.
- Environmental over-temperature.
- Cooling failure.
- Failure in one or more amplification modules.
- Failure in power supply modules.
High efficiency cooling system
The air cooling system limits the heat-sink temperature rise to only about 10°C above ambient temperature. This guarantees the properly functioning even at high temperatures and in sites with extreme climate conditions.
Air cooling
FM amplifiers KFG series oversized air cooling system widely extends transistor life. The amplifier modules are equipped with externally mounted redundant fans to allow easy and fast cleaning, or eventual replacement, without opening or removing any module and without
interrupting the transmitter operation.
Liquid Cooling
An oversize heat exchanger, single or double (optional), suitable for outdoor or indoor installation, and equipped with single or double (optional) pump system for maximum redundancy, is the main component of the powerful liquid cooling system. DB liquid cooling
system assures high reliability, cooling efficiency and easy installation, thanks to the special design of liquid cooled heat-sinks inside the amplifier and low pressure liquid distribution. This system is designed to successfully face every hard climate condition.
Advantages of liquid cooling PFG
Substantial advantages of our liquid cooling technology compared to air cooling are:
- Properly working even with hard climate conditions.
- Dramatically reduction of air conditioning needing.
- Correct functioning in dusty environment even with high humidity or salinity.
- Very low acoustic noise.
- Low heat radiation into the environment.
- Longer life for transistors and active elements due to colder continuous operation.
AAD Technology
- Prevents corrosion from air moisture and increases reliability
- Components are made in anticorodal aluminum.
- Air is ducted to avoid contact with electronic parts.
- All electronic boards and cablings are tropicalized with a special resin to protect the circuits against salt air.
MODEL | POWER OUTPUT | OUTPUT CONNECTOR | UNIT\ EMPLOYED RACKS | RACK SUPPLIED |
KFG 100 | 100 W | N | 19" x 2U | No rack |
KFG 300 | 300 W | N | 19" x 2U | No rack |
KFG 500 | 500 W | N | 19" x 2U | No rack |
KFG 1k | 1000 W | DIN 7/16 | 19" x 2U | No rack |
KFG 2k | 2000 W | EIA 7/8" | 19" x 3U | No rack |
KFG 3k | 3000 W | EIA 7/8" | 19" x 3U | No rack |
KFG 6k/1x | 6000 W | EIA 7/8" | 19" x 4U | No rack |
KFG 6k/2x | 6000 W | EIA 1+5/8" | 19" x 19U | 19" x 19U |
KFG 8k | 8000 W | EIA 1+5/8" | 19" x 24U | 19" x 24U |
KFG 10k/2x | 10 kW | EIA 1+5/8" | 19" x 31U | 19" x 31U |
KFG 10k/4x | 10 kW | EIA 1+5/8" | 19" x 31U | 19" x 31U |
KFG 15k | 15 kW | EIA 3+1/8" | 19" x 41U | 19" x 41U |
KFG 20k | 20 kW | EIA 3+1/8 | 19 | 19 |
KFG 30k | 30 kW | EIA 3+1/8" | 2 racks of 19" x 41U | 2 racks of 19" x 41U |
KFG 40k | 40 kW | EIA 4+1/2" | 2 racks of 19" x 45U | 2 racks of 19" x 45U |
GENERAL | |
Frequency range | 87.5 to 108 MHz adjustable with 10kHz step |
Output impedance | 50 Ω |
Spurious and harmonic suppression | Exceeds CCIR/FCC requirements |
RF Probe | 50 Ω, BNC |
Power stability | < 2% (ALC) |
DC to RF efficiency | 83% typ. |
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 | 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% |