dB Mozart 30 User manual

MOZART SERIES –FM Exciters/Transmitters - U
SER ’ S M ANUAL 1 /87
MOZART Series
FM Exciters/Transmitters
User’s Manual
Release 1.0.3
- DB ELETTRONICA TELECOMUNICAZIONI S.p.A. -
- Riviera Maestri del Lavoro, 20/1 - 35127 Z.I. SUD PADOVA ITALY -- Ph. [phone] - Fax. [phone] -
- http://www.dbbroadcast.com -

MOZART SERIES –FM Exciters/Transmitters - U
SER ’ S M ANUAL 2 /87
The constructor reserves the right to modify the information in this manual at any time
without advising update.
Document History
Rev. Date Name Details
1.0 September 2013 IC
1.0.1 October 2013 IC Integration and correction of the
menu and technical parameters
1.0.2 October 2013 IC Complete Series user manual
1.0.3 February 2014 AB+DS Updated the menu description chapter
Issued: February 2014 – Version 1.0.3
© 2013. Copyright by:
DB Elettronica Telecomunicazioni SpA
Riviera Maestri del Lavoro, 20/1
35127 Z.I. SUD PADOVA ITALY
All rights reserved.
All specifications, characteristics and circuit descriptions indicated in this manual are subject to
change without notice.

MOZART SERIES –FM Exciters/Transmitters - U
SER ’ S M ANUAL 3 /87
INDEX
1 GENERAL INFORMATION ................................................................................................................................8
1.1 SAFETY NOTICES.............................................................................................................................................8
1.2 FIRST AID IN CASE OF ELECTROCUTION....................................................................................................9
1.3 WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT (WEEE)............................................................10
1.4 MANUFACTURE LABELS..............................................................................................................................10
1.5 IC RSS-GEN, S EC 7.1.2 W ARNING S TATEMENT - (R EQUIRED FOR T RANSMITTERS )...........................................11
1.6 IC RSS-102, S EC 2.6 W ARNING S TATEMENTS ....................................................................................................11
2 FM EXCITER GENERAL DESCRIPTION......................................................................................................12
3 TECHNICAL SPECIFICATIONS......................................................................................................................18
4 INSTALLATION AND ACTIVATION..............................................................................................................21
4.1 INITIAL CHECK...............................................................................................................................................21
4.2 CONNECTIONS................................................................................................................................................22
5 MENU DESCRIPTION........................................................................................................................................23
5.1 VISUALIZATION.............................................................................................................................................23
5.1.1 START PAGE............................................................................................................................................23
5.1.2 Main menu ................................................................................................................................................23
5.2 V METERS AND INFO MENU..........................................................................................................................24
5.2.1 Output Modulation....................................................................................................................................25
5.2.2 Left and Right channels level....................................................................................................................25
5.2.3 AES-EBU Left and Right channels level...................................................................................................25
5.2.4 Auxiliary channels level............................................................................................................................26
5.2.5 Voltages and current.................................................................................................................................26
5.2.6 Heatsink temperature................................................................................................................................27
5.2.7 Device information ...................................................................................................................................27
5.3 SETTINGS MENU.............................................................................................................................................28
5.3.1 Frequency Set menu..................................................................................................................................29
5.3.2 Power Set menu ........................................................................................................................................29
5.3.3 Operative Mode menu...............................................................................................................................30
5.3.4 Audio Selection menu................................................................................................................................32
5.3.5 Sensitivity menu ........................................................................................................................................35
5.3.6 Presetting menu ........................................................................................................................................36
5.3.7 Alarms menu.............................................................................................................................................43
5.3.8 Memory menu ...........................................................................................................................................49
5.3.9 History menu.............................................................................................................................................53
5.3.10 Generals menu .....................................................................................................................................55
6 FRONT PANEL....................................................................................................................................................59
6.1 FRONT PANEL KEYS......................................................................................................................................59
6.2 FRONT PANEL LEDS ......................................................................................................................................61
6.2.1 Status leds.................................................................................................................................................61
6.2.2 Audio leds .................................................................................................................................................62
6.2.3 Control leds...............................................................................................................................................63
6.2.4 Command leds...........................................................................................................................................64
7 REMOTE I/O (OPTIONAL) ...............................................................................................................................65
8 WEB SERVER (OPTIONAL) .............................................................................................................................66
8.1 WEB PAGES......................................................................................................................................................67
8.1.1 Main page.................................................................................................................................................67
8.1.2 Login page................................................................................................................................................68
8.1.3 Settings page.............................................................................................................................................69
8.1.4 Presettings page........................................................................................................................................70
8.1.5 Log page ...................................................................................................................................................71

MOZART SERIES –FM Exciters/Transmitters - U
SER ’ S M ANUAL 4 /87
8.1.6 Administration page..................................................................................................................................72
8.1.7 Modulator Upgrade page .........................................................................................................................74
8.1.8 Webserver Upgrade page .........................................................................................................................75
8.2 UPGRADING PROCEDURES..........................................................................................................................76
8.2.1 Upgrading the modulator firmware..........................................................................................................76
8.2.2 Upgrading the webserver board firmware................................................................................................80
8.3 SNMP PROTOCOL...........................................................................................................................................84
8.3.1 Management Information Base MIB.........................................................................................................84
8.3.2 Message trap and inform..........................................................................................................................86
8.3.3 Commands and State.................................................................................................................................87

MOZART SERIES –FM Exciters/Transmitters - U
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F IGURES I NDEX
F IG . 1.1 - U NITS L ABEL .....................................................................................................................................................10
F IG . 2.1 - MOZART 30 FRONT VIEW.........................................................................................................................14
F IG . 2.2 - MOZART 30 REAR VIEW............................................................................................................................15
F IG . 2.3 – MOZART 50/120/300/500/1000 FRONT VIEW ..........................................................................................16
F IG . 2.4 – MOZART 50/120/300/500/1000 REAR VIEW.............................................................................................17
F IG . 5.1 – S TART PAGE .......................................................................................................................................................23
F IG . 5.2 – M AIN MENU .......................................................................................................................................................23
F IG . 5.3 – V METERS AND I NFO MENUS FLOW GRAPH .........................................................................................................24
F IG . 5.4 – O UTPUT T OTAL M ODULATION PAGE .................................................................................................................25
F IG . 5.5 – A NALOGIC L EFT AND R IGHT INPUT LEVELS .......................................................................................................25
F IG . 5.6 – AES-EBU L EFT AND R IGHT INPUT LEVELS .......................................................................................................25
F IG . 5.7 – A UXILIARY CHANNELS 1 INPUT LEVELS .............................................................................................................26
F IG . 5.8 – A UXILIARY CHANNELS 2 INPUT LEVELS .............................................................................................................26
F IG . 5.9 – V OLTAGES AND C URRENT PAGE ........................................................................................................................26
F IG . 5.10 – H EATSINK TEMPERATURE PAGE .......................................................................................................................27
F IG . 5.11 – D EVICE INFORMATION PAGE ............................................................................................................................27
F IG . 5.12 – S ETTING MENU FLOW GRAPH ...........................................................................................................................28
F IG . 5.13 – S ET FREQUENCY MENU ....................................................................................................................................29
F IG . 5.14 – S ET POWER MENU ............................................................................................................................................29
F IG . 5.15 – O PERATIVE M ODE MONO..............................................................................................................................30
F IG . 5.16 – O PERATIVE M ODE MONO CHANNEL SELECTION ............................................................................................30
F IG . 5.17 – O PERATIVE M ODE STEREO OPTIONS .............................................................................................................31
F IG . 5.18 – O PERATIVE M ODE STEREO MPX..................................................................................................................31
F IG . 5.19 – A UXILIARY CHANNELS OPTIONS ......................................................................................................................32
F IG . 5.20 – A UDIO S ELECTION MENU OPTIONS ...................................................................................................................32
F IG . 5.21 – I NPUT I MPEDANCE MENU .................................................................................................................................33
F IG . 5.22 – P RE - EMPHASIS MENU .......................................................................................................................................33
F IG . 5.23 – E NABLE LIMITER MENU ...................................................................................................................................34
F IG . 5.24 – L IMITER VALUE MENU .....................................................................................................................................34
F IG . 5.25 – C HANNELS S ENSITIVITY ..................................................................................................................................35
F IG . 5.26 – P RESETTING MODE ...........................................................................................................................................36
F IG . 5.27 – P RESETTING MONO MODE MENU ....................................................................................................................37
F IG . 5.28 – P RESETTING STEREO MPX I NT MODE MENU .................................................................................................38
F IG . 5.29 – P RESETTING TOTAL DEVIATION ADJUSTMENT ..................................................................................................39
F IG . 5.30 – P RESETTING AUXILIARY CHANNELS DEVIATION ADJUSTMENT .........................................................................39
F IG . 5.31 – P RESETTING 19KH Z /MPX O UT MENU .............................................................................................................40
F IG . 5.32 – P ILOT TONE DEVIATION ADJUSTMENT ..............................................................................................................40
F IG . 5.33 – P ILOT TONE PHASE ADJUSTMENT .....................................................................................................................41
F IG . 5.34 – AES-EBU INTERFACE ENABLE MENU ..............................................................................................................41
F IG . 5.35 – AES-EBU R ATIO MENU ..................................................................................................................................42
F IG . 5.36 – A LARMS /W ARNINGS MENU FLOW GRAPH ........................................................................................................43
F IG . 5.37 – F OLDBACK R EFLECTED MENU .........................................................................................................................44
F IG . 5.38 – W ARNING R EFLECTED MENU ...........................................................................................................................44
F IG . 5.39 – W ARNING POWER L OW MENU ..........................................................................................................................45
F IG . 5.40 – A LARM POWER L OW MENU ..............................................................................................................................46
F IG . 5.41 – A UDIO L OW L EVEL MENU ...............................................................................................................................46
F IG . 5.42 – A UDIO L OW TIMEOUT MENUS ..........................................................................................................................47
F IG . 5.43 – A UDIO O VER L EVEL MENU ..............................................................................................................................47
F IG . 5.44 – A UDIO O VER TIMEOUT MENUS ........................................................................................................................48
F IG . 5.45 – A UDIO EVENTS TYPE MENU ..............................................................................................................................48
F IG . 5.46 – M EMORY MENU FLOW GRAPH ..........................................................................................................................49
F IG . 5.47 – A CTIVE M EMORY MENU ..................................................................................................................................50
F IG . 5.48 – E DIT M EMORY MENUS .....................................................................................................................................50
F IG . 5.49 – E NABLE M EMORY EDITING PAGE .....................................................................................................................51
F IG . 5.50 – E NDING E DITING M EMORY PAGE ....................................................................................................................51
F IG . 5.51 - M EMORY MENU DURING EDITING .....................................................................................................................51
F IG . 5.52 – C ONFIRMATION EDITING M EMORY PAGE .........................................................................................................51

MOZART SERIES –FM Exciters/Transmitters - U
SER ’ S M ANUAL 6 /87
F IG . 5.53 – C LEAR ALL M EMORY MENU ............................................................................................................................52
F IG . 5.54 – C LEAR ALL M EMORY CONFIRMATION PAGE ....................................................................................................52
F IG . 5.55 – H ISTORY MENU ................................................................................................................................................53
F IG . 5.56 – H ISTORY MENU EVENT DETAIL PAGE ...............................................................................................................53
F IG . 5.57 – G ENERALS MENU FLOW GRAPH ........................................................................................................................55
F IG . 5.58 – S ET HOUR PAGE ...............................................................................................................................................56
F IG . 5.59 – S ET MINUTE PAGE ............................................................................................................................................56
F IG . 5.60 – S ET SECOND PAGE ............................................................................................................................................56
F IG . 5.61 – S ET DAY PAGE .................................................................................................................................................57
F IG . 5.62 – S ET MONTH PAGE .............................................................................................................................................57
F IG . 5.63 – S ET YEAR PAGE ................................................................................................................................................57
F IG . 5.64 – S ET RS-485 ADDRESS PAGE .............................................................................................................................58
F IG . 5.65 – U NIT IP ADDRESS PAGE ...................................................................................................................................58
F IG . 5.66 – U NIT NETMASK PAGE .......................................................................................................................................58
F IG . 8.1 – W EBSERVER MAIN PAGE ....................................................................................................................................67
F IG . 8.2 – W EBSERVER L OGIN PAGE ..................................................................................................................................68
F IG . 8.3 – W EBSERVER S ETTING PAGE ...............................................................................................................................69
F IG . 8.4 – W EBSERVER P RESETTING PAGE .........................................................................................................................70
F IG . 8.5 – W EBSERVER L OG PAGE .....................................................................................................................................71
F IG . 8.6 – W EBSERVER A DMINISTRATION PAGE ................................................................................................................72
F IG . 8.7 – W EBSERVER M ODULATOR U PGRADE PAGE .......................................................................................................74
F IG . 8.8 – W EBSERVER U PGRADE PAGE .............................................................................................................................75
F IG . 8.9 – S TART IN BOOTLOADER MODE ...........................................................................................................................76
F IG . 8.10 – M ODULATOR U PGRADE PAGE ..........................................................................................................................76
F IG . 8.11 – N EW FIRMWARE SELECTION ............................................................................................................................77
F IG . 8.12 – U PLOAD THE NEW FIRMWARE ..........................................................................................................................77
F IG . 8.13 – C ONFIRM THE UPLOAD .....................................................................................................................................77
F IG . 8.14 – U PGRADE TO THE NEW FIRMWARE ...................................................................................................................78
F IG . 8.15 – E RASE THE FLASH BEFORE THE UPGRADE ........................................................................................................78
F IG . 8.16 – U PGRADE IN WORKING ....................................................................................................................................78
F IG . 8.17 – U PGRADE COMPLETE .......................................................................................................................................79
F IG . 8.18 – W EBSERVER U PGRADE PAGE ...........................................................................................................................80
F IG . 8.19 – S ELECT THE NEW WEBSERVER BOARD FIRMWARE ...........................................................................................80
F IG . 8.20 – U PLOAD THE FIRMWARE TO WEBSERVER .........................................................................................................81
F IG . 8.21 – C ONFIRM THE UPLOADING ...............................................................................................................................81
F IG . 8.22 – B USY STATE DURING UPLOAD PROCEDURE ......................................................................................................81
F IG . 8.23 – N EW FIRMWARE READY TO UPGRADE ..............................................................................................................82
F IG . 8.24 – C ONFIRMATIONS TO UPGRADE .........................................................................................................................82
F IG . 8.25 – U PGRADE IN WORKING ....................................................................................................................................82
F IG . 8.26 – R EBOOT THE WEBSERVER ................................................................................................................................83
F IG . 8.27 – C ONFIRM THE REBOOT .....................................................................................................................................83
F IG . 8.28 – W AIT UNTIL THE REBOOT IS COMPLETED .........................................................................................................83
F IG . 8.29 – L IST OF FILE OF MIB PACKET ..........................................................................................................................84
F IG . 8.30 – FM S INGLE T RANSMITTER MIB......................................................................................................................85
F IG . 8.31 - T RAPS AND I NFORMS CONFIGURATION .............................................................................................................86

MOZART SERIES –FM Exciters/Transmitters - U
SER ’ S M ANUAL 7 /87
T ABLES I NDEX
T ABLE 5.1 – F REQUENCY PERMITTED VALUES ...................................................................................................................29
T ABLE 5.2 – S ETTING POWER SPECIFICS ............................................................................................................................30
T ABLE 5.3 – I MPEDANCE PERMITTED VALUES ...................................................................................................................33
T ABLE 5.4 – P RE - EMPHASIS PERMITTED VALUES ...............................................................................................................33
T ABLE 5.5 – L IMITER PERMITTED VALUES .........................................................................................................................34
T ABLE 5.6 – S ENSITIVITY PERMITTED VALUES ..................................................................................................................35
T ABLE 5.7 - P RESETTING STEREO MPX E XT MODE MENU ..............................................................................................38
T ABLE 5.8 – T OTAL DEVIATION ADJUSTMENT PERMITTED VALUES ...................................................................................39
T ABLE 5.9 – A UXILIARY CHANNELS DEVIATION ADJUSTMENT PERMITTED VALUE ............................................................39
T ABLE 5.10 – P ILOT TONE DEVIATION ADJUSTMENT PERMITTED VALUES ..........................................................................40
T ABLE 5.11 – P ILOT TONE PHASE ADJUSTMENT PERMITTED VALUES .................................................................................41
T ABLE 5.12 – AES-EBU R ATIO PERMITTED VALUES ........................................................................................................42
T ABLE 5.13 – F OLDBACK R EFLECTED PERMITTED VALUES ...............................................................................................44
T ABLE 5.14 – W ARNING R EFLECTED PERMITTED VALUES .................................................................................................45
T ABLE 5.15 – W ARNING POWER L OW PERMITTED VALUES ................................................................................................45
T ABLE 5.16 – A LARM POWER L OW PERMITTED VALUES ....................................................................................................46
T ABLE 5.17 – A UDIO L OW L EVEL PERMITTED VALUES .....................................................................................................47
T ABLE 5.18 – A UDIO L OW TIMEOUTS PERMITTED VALUES ................................................................................................47
T ABLE 5.19 – A UDIO O VER L EVEL PERMITTED VALUES ....................................................................................................48
T ABLE 5.20 – A UDIO O VER TIMEOUTS PERMITTED VALUES ..............................................................................................48
T ABLE 5.21 – A UDIO EVENTS PERMITTED TYPES ...............................................................................................................49
T ABLE 5.22 – M EMORY AVAILABLE ..................................................................................................................................50
T ABLE 5.23 – E VENTS LIST ................................................................................................................................................54
T ABLE 7.1 – R EMOTE I/O PINOUT ......................................................................................................................................65
T ABLE 8.1 – T RAPS AND I NFORMS AVAILABLE ..................................................................................................................86

MOZART SERIES –FM Exciters/Transmitters - U
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1GENERAL INFORMATION
1.1 SAFETY NOTICES
To avoid risks of electrical shocks or fire, only qualified personnel should execute the procedures
specified in this manual.
When the protective covers of any device or component connected to a 110 / 240 VAC source by a
power cord are removed, voltages and currents dangerous to life may be exposed.
Contact with 110 / 240 Volts of alternating current and associated direct current and voltages can be
fatal.
CAUTION
To reduce the risks of electrical shock, do not remove the cover (or the back). Refer, for servicing,
to qualified service personnel. This installation should be done by a qualified person and should
comply with to all local applicable laws.
Beryllium Oxide
It is dangerous component if inhaled, eaten or put into direct contact with skin, especially if the skin
is cut or wounded.
Special care is required in handling beryllium material in order to NOT produce any dust, particles,
fumes etc. etc. Whenever beryllium material is broken it is extremely important to collect all parts
in a carefully sealed and marked container for discharging in a specific way through controlled
channels. All above operations have to be affected using gloves and tongs, with special care taken
not to produce dust.
After handling beryllium components it is essential to wash hands carefully.
Beryllium compounds are used in RF Connectors.

MOZART SERIES –FM Exciters/Transmitters - U
SER ’ S M ANUAL 9 /87
1.2 FIRST AID IN CASE OF ELECTROCUTION
Do not touch the victim until the electrical circuit has been interrupted to make sure the person is
isolated. If this is not possible, move the victim away from the conductor by using insulated
material.
If respiration is interrupted, artificial respiration must be applied (mouth-to-mouth respiration). Lay
the patient on his back, feet elevated above the level of the head, chin up and head back.
Call a doctor urgently
In case of a mouth wound it may be necessary to apply mouth-to-nose respiration, blocking the
patient’s mouth.
In case of face wounds the need for manual artificial respiration may arise.
Push down on the chest of the prostrate patient whilst moving the patient’s arms up and out.
If the victim has also suffered burns then, without obstructing breathing, proceed as follows:
•Do not remove clothing from burn wounds.
•If possible gently pour cold water over wounds to relieve pain.
•Do not use any medication.
•Call for urgent medical assistance.

MOZART SERIES –FM Exciters/Transmitters - U
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1.3 WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT
(WEEE)
The purpose of the DIRECTIVE 2002/96/EC OF THE EUROPEAN PARLIAMENT AND
OF THE COUNCIL of 27 January 2003 on waste electrical and electronic equipment
(WEEE) is, as first priority, the prevention of waste electrical and electronic equipment
and, in addition, the reuse, recycling and other forms of recovery of such wastes so as to
reduce the disposal of waste.
To do this, remember to collect separately all the electronic material.
1.4 MANUFACTURE LABELS
All the units are identified by a black silver label:
Fig. 1.1 - Units Label
Label fields:
1. Product name
This field contains the model of the unit (part name).
2. Serial number
This field contains the serial number of the module or equipment (made by 8 digits).
3. Operating Frequency
This field contains the operating frequency (for FM units) or the channel and standard (for
TV units) set by the factory. In case no indication is present, the unit is considered as
broadband in its operating band.
4. Return Loss
FACTORY USE ONLY
1
2
3
4
5
6
7

MOZART SERIES –FM Exciters/Transmitters - USER’S MANUAL 11 /87
5. Functional Test
A cross on this field indicates that the functional test of the unit has been done by the
technician.
6. Mechanical Test
A cross on this field indicates that the functional test of the unit has been done by the
technician.
7. Temp. Test
A cross on this field indicates that the functional test of the unit has been done by the
technician.
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MOZART SERIES –FM Exciters/Transmitters - U
SER ’ S M ANUAL 12 /87
2FM EXCITER GENERAL DESCRIPTION
The MOZART FM exciter/transmitter is the result of the development of the MSE (Magnetic
Sound Enhancer) technology together with the improvements in the FM modulation and using
high performances PFC filters for the AC/DC conversion. This unit is ideal as stand alone unit
for low power transmissions or suitable as high performance exciter in modular transmitters.
This unit has been developed with the Green RF technology which increases the efficiency of
the amplification part reducing the dimensions and power consumption without modifying the
quality of the transmission.
The main advantages of this technology are:
- High RF efficiency
- Lower heating (lower necessity of air conditioning in the installation room)
- Higher devices safety
- Higher total reliability
- Lower AC power consumption
An user friendly interface with the combination of leds and LCD display offers a very easy
method to control the MOZART main parameters with a metering accuracy that helps the user
to install the unit and check its status even in case he doesn’t have expensive test equipments.
In case of fault of the unit or antenna system, the protection system lowers automatically the
output power, in order to bring back the operating conditions to a safe area without causing a
system shut down, and it indicates on the front panel display the alarm message.
The protection system reduces or stops the output power in case of:
- V.S.W.R. too high.
- Heatsink temperature too high or cooling stop (OVER HEAT).
- Missing Enable command (in case of combination with external units like control
logic units)

MOZART SERIES –FM Exciters/Transmitters - U
SER ’ S M ANUAL 13 /87
The switch-mode power supply is largely oversized and guarantees a regular operation even in the
presence of wide main voltage fluctuations.
The systems cooling grants a safe operation even in hard climatic conditions.

14 /87
Fig. 2.1 - MOZART 30 FRONT VIEW
1. RF Monitor connector
2. Status leds
a. ALARM: in case of a temporary alarm (it returns automatically to the normal status at next attempt of the unit) – RED led
b. WARNING: in case of a warning is present - YELLOW led
c. ON: in case the unit is connected to the mains and switched on – GREEN led
3. LCD Display
4. Navigation keys (UP /DOWN / RIGHT / LEFT / OK)
5. Escape key
6. AUDIO and CONTROL leds
a. RDS/AUX: it is ON in case the RDS/SCA/AUX are on b. MPX: it is ON in case the MPX EXT mode is selected
c. NO AUDIO: it is ON in case of alarm/warning on audio signal d. AES-EBU: it is ON in case the AES-EBU is on
e. LIM: it is ON in case the limiter is set to on f. STEREO: it is ON in case the MPX INT mode is selected
g. PRE EMPH: it is ON in case the pre-emphasis is on h. MONO: it is ON in case the MONO mode is selected
i. PREF: no actually available j. PLL LOCK: it is ON in case the PLL is correctly locked
k. AUTO: no actually available l. INTLK: it is ON in case the ENABLE is closed
7. Command keys (Reset Alarms, Local/Remote, ON/OFF) and leds (Fault, Local, RF ON)
4
1
2 3 6 7
5

15 /87
Fig. 2.2 - MOZART 30 REAR VIEW
1. AC input
2. LAN port
3. Cooling FAN
4. RF output connector (N)
5. Left XLR connector
6. Right XLR connector
7. AES/EBU XLR connector
8. 19kHz / MPX OUT BNC connector
9. AUX BNC connector
10. MOD OUT BNC connector
11. SCA BNC connector
12. MPX BNC connector
13. RDS BNC connector
14. ENABLE connector
15. RS 485 MASTER connector
16. RS 485 SLAVE connector
17. REMOTE connector
1 2 3 4 5 6 7 9 11 13 14
8 10 12 15 16
17

16 /87
Fig. 2.3 – MOZART 50/120/300/500/1000 FRONT VIEW
1. RF Monitor connector
2. Status leds
a. ALARM: in case of a temporary alarm (it returns automatically to the normal status at next attempt of the unit) – RED led
b. WARNING: in case of a warning is present - YELLOW led
c. ON: in case the unit is connected to the mains and switched on – GREEN led
3. LCD Display
4. Navigation keys (UP / DOWN / RIGHT / LEFT / OK)
5. ESCAPE key
6. AUDIO and CONTROL leds
a. RDS/AUX: it is ON in case the RDS/SCA/AUX are on b. MPX: it is ON in case the MPX EXT mode is selected
c. NO AUDIO: it is ON in case of alarm/warning on audio signal d. AES-EBU: it is ON in case the AES-EBU is on
e. LIM: it is ON in case the limiter is set to on f. STEREO: it is ON in case the MPX INT mode is selected
g. PRE EMPH: it is ON in case the pre-emphasis is on h. MONO: it is ON in case the MONO mode is selected
i. PREF: no actually available j. PLL LOCK: it is ON in case the PLL is correctly locked
k. AUTO: no actually available l. INTLK: it is ON in case the ENABLE is closed
7. Command keys (Reset Alarms, Local/Remote, ON/OFF) and leds (Fault, Local, RF ON)
4
2 3 6 7
5
1

17 /87
Fig. 2.4 – MOZART 50/120/300/500/1000 REAR VIEW
1. AC input
2. LAN port
3. Cooling FAN
4. RF output connector (N)
5. Left XLR connector
6. Right XLR connector
7. AES/EBU XLR connector
8. 19kHz / MPX OUT BNC connector
9. AUX BNC connector
10. MOD OUT BNC connector
11. SCA BNC connector
12. MPX BNC connector
13. RDS BNC connector
14. ENABLE connector
15. RS 485 MASTER connector
16. RS 485 SLAVE connector
17. REMOTE connector
18. Fuse
19. Switching on button
2
1
5
3
4
6
7
15
16
17
12
9
11
13
10
14
8
18
19

18 /87
3TECHNICAL SPECIFICATIONS
RF FEATURES
RF Output impedance 50
Ω
unbalanced
Frequency range 87.5 to 108 MHz
Frequency control Synthesizer
µ
processor controlled
Off-lock attenuation > 75 dBc (typical -80 dB)
Type of modulation F3E / F8E direct FM at the carrier frequency
Modulation mode Mono, Stereo, Multiplex, SCA, RDS, AUX (input selected by front
panel)
Frequency deviation ±75 kHz =100 %, ±150 kHz capability (others on request)
Reference VCTCXO 10 MHz ± 1ppm or 10 MHz external (Optional)
Constancy of freq. dev. ±1 % over six months
Variation of freq. ± 1ppm/year
Short term stability ± 1 ppm from -5 to +45
°
C
Instantaneous BW >20 MHz
RF harmonics Exceeds EBU/CCIR/FCC requirements > -75dBc
RF spurious
Exceeds EBU/CCIR/FCC requirements < -100 dBc @ ± 1 MHz min.
out of carrier (typical -110dB)
Pre-emphasis Flat/50/75µs selectable via front panel
Pre-emphasis precision Nominal 1% (typical 0.4% )
Stereo operation CCIR 450/S2 "pilot tone system"
STEREO OPERATION
1. Audio response
±
0.3 dB da 20 Hz to 15 kHz
2. Audio filter attenuation
>
55 dB @ 19 kHz, >45dB 19 to 100kHz
3. Common mode rejection 20 Hz to 15 kHz
>
45 dB
4.
Stereo Separation 30-80Hz >53dB (typ. 56), 80Hz-15kHz >60 dB (typ.70)
5. Crosstalk attenuation (M / S)
>
40 dB 30 Hz to 15 kHz (typ. 52dB / 400Hz to 5kHz)
6. Spurious products
>
53 kHz
>
50 dB
7. 38 kHz suppression
>
70 dB (Typ -85dB)
8. Subcarrier frequency 38 kHz
±
2 Hz
9.
Subcarrier generation Internal crystal
10. Pilot frequency 19 kHz
±
1 Hz
11. THD+N on encoded channels
<
0.03 % 30 Hz TO 15 kHz ( typ -75dB)
12. Nominal pilot deviation
±
7 kHz
MONO OPERATION
Audio response
±
0.3 dB 20 Hz to 15 kHz (+0/-2%)
THD+N on encoded channels 30 Hz to 15 kHz
<
0.06% ( typ. 0.03 % ) typ. -78dB

19 /87
MPX OPERATION (External coder)
Audio response 30Hz - 100kHz
±
0.15 dB
THD+N on encoded channels 30 Hz to 15 kHz <0.03% ( typ. 0.02% , < -75dB)
AUDIO INPUTS
Function Input level / Adjustment range BW Impedance Type Conn. N°
Composite -0 ÷ +15 dBu
±0.15 dB
30 Hz÷100kHz >5 kΩUnbal. BNC 1
SCA/RDS/AUX
-16 ÷ 0 dBu
±0.15 dB
40kHz÷100kHz ~2 k
Ω
(other on
request) Unbal. BNC 2
AES/EBU -3 dBFS for ± 75 kHz 15 dBu (12.33 Vpp)
-15 … 0 dBFS
0 to 15 dBu
(2.19 Vpp to 12.3 Vpp)
0.15 dB
40kHz÷100kHz 110 Ω
Unbal XLR 3
L -0 ÷ +15 dBu ±0.15 dB
30Hz÷15kHz
10 kΩ
600 Ω
Unbal.
Bal. XLR
4
R -0 ÷ +15 dBu ±0.15 dB
30Hz÷15kHz
10 kΩ
600 Ω
Unbal.
Bal. XLR
5
AUDIO OUTPUTS
RF connector N female
Monitor RF output -44dBc±2dB from 87.5 to 108 MHz
Pilot/MPX BNC connector
19 kHz or MPX, level 1 Vpp, internally adjustable
Mod. Output BNC Connector
MODEL NOMINAL POWER CONNECTOR SIZE
MOZART 30 30 W N 1U x 19”
MOZART 50 50 W N 1U x 19”
MOZART 120 120 W N 2 U x 19”
MOZART 300 300 W N 2 U x 19”
MOZART 500 500 W N 2 U x 19”
MOZART 1000 1000 W DIN 7/16 2 U x 19”

20 /87
SIZE & ELECTRICS
Power supply 110/220V single phase AC (+10 / -15 %) 50-60Hz/
±
5%
Display Blue back panel; 2 raw 24 character LCD
Cooling Forced air, with external long life brushless ball bearing fan
Features and specifications subject to change without notice.
ENVIRONMENT
Storage temperature -20
°
C TO + 60
°
C
Operating temperature 0
°
C TO + 50
°
C
Guaranteed performance temperature 0
°
C TO + 45
°
C
Relative non-condensing humidity 90 % MA
Max operating altitude 3000 mt.
Max extraneous field strength
≤
10 V/m;
≤
4 A/m