Worldcast Systems ECRESO FM 5kW User manual

WorldCast Systems
web: www.worldcastsystems.com - e-mail: [e-mail]
ECRESO FM 5kW/10kW
USER MANUAL
87.5 –108 MHz
FM TRANSMITTER
Date: 2021/11/16
Version: 2.3.x

WorldCast Systems, hereby, certifies that the ECRESO FM transmitter complies with the dispositions of applicable
European Community Directives.
A copy of the complete certificate of conformance can be found on the website
https://www.worldcastsystems.com/en/account/documents/
FCC Part 15.19 Warning Statement
This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause undesired
operation.
FCC Part 15.21 Warning Statement
NOTE: the grantee is not responsible for any changes or modifications not expressly approved by the party responsible
for compliance. Such modifications could void the user’s authority to operate the equipment.
FCC Part 15.105(b) Warning Statement
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
•-Consult the dealer or an experienced radio/TV technician for help.

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WorldCast Systems SAS - 20 avenue NeilArmstrong - 33700Mérignac (Bordeaux Métropole) FRANCE
[phone] –www.worldcastsystems.com –[e-mail]
TABLE OF CONTENTS
1. INTRODUCTION ............................................................................................................................................9
1.1. About WorldCast Systems .......................................................................................................................9
1.2. Before you start .....................................................................................................................................11
1.2.1. Safety precautions .........................................................................................................................11
1.2.2. Factory guarantee..........................................................................................................................12
1.3. Licensing information ............................................................................................................................12
2. DESCRIPTION ..............................................................................................................................................13
2.1. General description.....................................................................................................................................13
2.2. Transmitter Description..............................................................................................................................14
2.3. Transmitter front view................................................................................................................................15
2.4. Transmitter rear view .................................................................................................................................16
2.5. Synoptic diagrams.......................................................................................................................................17
2.6. Control Unit description .............................................................................................................................27
2.6.1. Front panel...........................................................................................................................................27
2.6.2. Rear panel............................................................................................................................................28
2.6.3. Opened cover ......................................................................................................................................28
2.7. Exciter Description......................................................................................................................................29
2.7.1. Front panel...........................................................................................................................................29
2.7.2. Rear panel............................................................................................................................................29
2.7.3. Opened cover ......................................................................................................................................30
2.7.4. Synoptic diagram .................................................................................................................................31
2.8. 2000 W Power Amplifier.............................................................................................................................32
2.8.1. Front panel...........................................................................................................................................32
2.8.2. Rear panel............................................................................................................................................33
2.8.3. Opened cover ......................................................................................................................................33
2.9. Power supply module .................................................................................................................................34
2.10. Fan module ...............................................................................................................................................35
2.11. Coupler......................................................................................................................................................36
2.12. Cooling systems ........................................................................................................................................37
2.13. Roof top ....................................................................................................................................................38
2.14. Hardware options .....................................................................................................................................38
2.14.1. Mains power on/off switch................................................................................................................38
2.14.2. Emergency stop buttons....................................................................................................................39
2.15. Protecting the transmitter........................................................................................................................40
2.15.1. Surge Protector..................................................................................................................................40
2.15.2. Protection against VSWR ...................................................................................................................40
2.15.3. Protection against high temperature ................................................................................................40
2.15.4. Protections incorporated into the control unit and exciter PSU .......................................................40
3. TECHNICAL SPECIFICATIONS .......................................................................................................................42
3.1. Environmental.............................................................................................................................................42
3.2. Power supply ..............................................................................................................................................42
3.3. Physical .......................................................................................................................................................42

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3.4. Interface panel............................................................................................................................................43
3.5. RF section....................................................................................................................................................43
3.6. Composite operation ..................................................................................................................................44
3.7. Stereo operation.........................................................................................................................................44
3.8. Mono operation..........................................................................................................................................44
3.9. AF inputs .....................................................................................................................................................45
3.10. HF output/input........................................................................................................................................45
3.11. Miscellaneous ...........................................................................................................................................45
4. STARTING UP YOUR TRANSMITTER.............................................................................................................46
4.1. Connections ................................................................................................................................................46
4.2. Setting the transmitter power and inputs ..................................................................................................47
4.3. Using the front panel ..................................................................................................................................48
4.3.1. Setting the transmitter ........................................................................................................................48
4.3.2. Input selection .....................................................................................................................................49
4.3.3. Setting the MPX inputs ........................................................................................................................49
4.3.4. MPX configuration ...............................................................................................................................50
4.3.5. Setting the analog or AES inputs..........................................................................................................50
4.3.6. Getting on air.......................................................................................................................................51
4.4. With the embedded website ......................................................................................................................52
4.4.1. Network configuration.........................................................................................................................52
4.4.2. Connecting to the web interface .........................................................................................................52
4.4.3. Configuring the transmitter .................................................................................................................53
4.4.4. Sound processing.................................................................................................................................54
4.4.5. SmartFM ..............................................................................................................................................54
4.4.6. Getting on air.......................................................................................................................................54
5. OPERATION AND PARAMETERS DESCRIPTION ............................................................................................55
5.1. Overview.....................................................................................................................................................55
5.2. Local mode..................................................................................................................................................55
5.3. How to set the inputs..................................................................................................................................56
5.4. TX parameters.............................................................................................................................................56
5.5. AC parameters ............................................................................................................................................58
5.6. SmartFM parameters..................................................................................................................................59
5.7. Input switch parameters.............................................................................................................................61
5.8. Line 1 (ANA) parameters.............................................................................................................................62
5.9. Line 2 (AES) parameters..............................................................................................................................63
5.10. MPX parameters .......................................................................................................................................64
5.11. Player parameters (audio backup)............................................................................................................65
5.12. Audio generator parameters ....................................................................................................................65
5.13. Modulation parameters............................................................................................................................66
5.14. Stereo Encoder parameters......................................................................................................................68
5.15. RDS / SCA encoder parameters.................................................................................................................69
5.16. Sound process parameters .......................................................................................................................70
5.17. RDS parameters ........................................................................................................................................71
5.18. SD card parameters ..................................................................................................................................77
5.19. Date and Time parameters .......................................................................................................................78
5.20. System parameters ...................................................................................................................................78

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6. FRONT SCREEN USE.....................................................................................................................................82
6.1. Overview.....................................................................................................................................................82
6.2. Working principle........................................................................................................................................82
6.2.1. The key pad..........................................................................................................................................82
6.2.2. Navigation............................................................................................................................................83
6.3. Structure of the Ecreso FM menus .............................................................................................................85
6.3.1. First level measurements.....................................................................................................................85
6.3.2. First level menus..................................................................................................................................86
6.3.3. Alarms..................................................................................................................................................87
6.3.4. TX Parameters......................................................................................................................................88
6.3.5. ACU Parameters...................................................................................................................................88
6.3.6. SmartFM ..............................................................................................................................................89
6.3.7. Input Switch.........................................................................................................................................89
6.3.8. Line 1 / Line 2.......................................................................................................................................91
6.3.9. Player ...................................................................................................................................................91
6.3.10. MPX Analog........................................................................................................................................92
6.3.11. MPX Digital ........................................................................................................................................92
6.3.12. Generator ..........................................................................................................................................93
6.3.13. Modulation ........................................................................................................................................93
6.3.14. Stereo encoder ..................................................................................................................................93
6.3.15. RDS / SCA Encoder.............................................................................................................................94
6.3.16. Sound Processor ................................................................................................................................94
6.3.17. RDS.....................................................................................................................................................95
6.3.18. Network .............................................................................................................................................96
6.3.19. Communication ports ........................................................................................................................96
6.3.20. Maintenance......................................................................................................................................97
6.3.21. Temperature / Fan.............................................................................................................................98
6.3.22. Time/Date..........................................................................................................................................98
6.3.23. License ...............................................................................................................................................99
6.3.24. SD Card ..............................................................................................................................................99
6.3.25. About / System ................................................................................................................................100
6.3.26. Easy/Expert......................................................................................................................................100
7. SERIAL & TELNET COMMANDS..................................................................................................................101
7.1. Working principle......................................................................................................................................101
7.2. ECRESO FM serial commands ...................................................................................................................103
7.2.1. System commands.............................................................................................................................103
7.2.2. Measurement commands..................................................................................................................105
7.2.3. Transmitter commands......................................................................................................................107
7.2.4. Configuration commands ..................................................................................................................108
7.2.5. Alarm commands...............................................................................................................................110
7.2.6. Input commands................................................................................................................................112
7.2.7. Encoder commands ...........................................................................................................................115
7.2.8. RDS commands ..................................................................................................................................116
7.2.9. ACU commands..................................................................................................................................120
7.2.10. Status commands ............................................................................................................................120

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8. THE EMBEDDED WEBSITE .........................................................................................................................101
8.1. Introduction ..............................................................................................................................................122
8.2. Connecting to the embedded web site.....................................................................................................122
8.3. Viewing the Status ....................................................................................................................................125
8.3.1. Synoptic .............................................................................................................................................125
8.3.2. Logbook/History ................................................................................................................................127
8.3.3. Advanced measurements ..................................................................................................................131
8.4. Transmitter configuration.........................................................................................................................134
8.4.1. Easy configuration .............................................................................................................................134
8.4.2. Main configuration ............................................................................................................................136
8.4.3. Maintenance......................................................................................................................................142
8.4.4. Dual drive...........................................................................................................................................147
8.4.5. Modulation configuration..................................................................................................................148
8.4.6. Input Selection...................................................................................................................................150
8.4.7. Input Sources .....................................................................................................................................152
8.4.8. Audio backup configuration...............................................................................................................155
8.5. Setting the RDS data .................................................................................................................................156
8.5.1. Static encoder....................................................................................................................................156
8.5.2. Dynamic Encoder...............................................................................................................................158
8.6. System configuration ................................................................................................................................161
8.6.1. Product ID ..........................................................................................................................................161
8.6.2. Product configuration........................................................................................................................162
8.6.3. Product Backup..................................................................................................................................162
8.6.4. Date / Time ........................................................................................................................................165
8.6.5. Network .............................................................................................................................................166
8.6.6. Communication .................................................................................................................................167
8.6.7. Users ..................................................................................................................................................168
8.6.8. SNMP Agent.......................................................................................................................................169
8.6.9. SNMP Manager..................................................................................................................................170
8.6.10. SMTP Client......................................................................................................................................171
8.6.11. IRT Traps ..........................................................................................................................................172
8.6.12. Traps / Emails...................................................................................................................................173
8.6.13. License .............................................................................................................................................174
8.6.14. System .............................................................................................................................................174
8.6.15. Advanced Logging ............................................................................................................................176
8.7. About ........................................................................................................................................................178
8.8. Chatting with other users .........................................................................................................................178
9. SOUND PROCESS.......................................................................................................................................179
9.1. Overview...................................................................................................................................................179
9.2. Presets ......................................................................................................................................................179
9.3. Management using the web interface......................................................................................................181
9.3.1. Saving a preset...................................................................................................................................181
9.3.2. Import/Export....................................................................................................................................182
9.3.3. Transmitter settings...........................................................................................................................182
9.4. Sound process parameters .......................................................................................................................182

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10. REMOTE CONTROL AND MONITORING WITH THE GPIO BOARD .............................................................185
10.1. Introduction ............................................................................................................................................185
10.2. Standard digital GPIO board ...................................................................................................................185
10.2.1. Description of control and monitoring functions ............................................................................185
10.2.2. Remote control function pinout ......................................................................................................186
10.2.3. Remote monitoring function pinout................................................................................................186
10.2.4. Physical representation of the GPIOs ..............................................................................................188
10.2.5. Management using serial commands..............................................................................................189
10.3. Analog GPIO board..................................................................................................................................190
10.3.1. Description of control and monitoring functions ............................................................................190
10.3.2. Remote control function pinout ......................................................................................................191
10.3.3. Remote analog monitoring function pinout ....................................................................................191
10.3.4. Remote monitoring function pinout (relays)...................................................................................192
10.3.5. Physical representation of the analog GPIOs ..................................................................................193
10.3.6. Management using serial commands..............................................................................................194
10.3.7. Specification of the analog GPIO board...........................................................................................194
10.4. Digital GPIO board with “Fault memory”................................................................................................194
10.4.1. Description of control and monitoring functions ............................................................................194
10.4.2. Remote control function pinout ......................................................................................................195
10.4.3. Remote monitoring function pinout................................................................................................195
10.4.4. Physical representation of the digital GPIO with “Fault memory” ..................................................198
10.4.5. Management using serial commands..............................................................................................199
11. EMR ........................................................................................................................................................205
11.1. Setting up................................................................................................................................................205
11.1.1. Connecting for the first time to EMR...............................................................................................205
11.1.2. Retrieving your account ID ..............................................................................................................206
11.1.3. Setting up transmitters....................................................................................................................206
11.2. Using EMR...............................................................................................................................................207
11.2.1. Presentation ....................................................................................................................................207
11.2.2. Viewing the map..............................................................................................................................207
11.2.3. Dashboard........................................................................................................................................208
11.2.4. Reporting .........................................................................................................................................211
11.2.5. Configuration ...................................................................................................................................212
APPENDIX A: SOFTWARE OPTION MANAGEMENT........................................................................................201
A.1. Using the embedded web site..................................................................................................................201
A.2. Using the front panel application .............................................................................................................202
A.3. Using serial commands.............................................................................................................................203
APPENDIX B: ADJUSTING THE IMPEDANCE OF ANALOG INPUTS...................................................................204
APPENDIX C: UNPACKING AND ASSEMBLING THE TRANSMITTER.................................................................205
C.1. Unpacking and assembly precautions ......................................................................................................213
Operator equipment....................................................................................................................................213
Requirements ..............................................................................................................................................213
C.2. Unpacking the cabinet ..............................................................................................................................214
C.3. Electrical connection.................................................................................................................................218
C.4. Mounting elements in the cabinet ...........................................................................................................221
C.5. RF connection ...........................................................................................................................................224

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APPENDIX D: MAINTENANCE........................................................................................................................226
D.1. Replacing a power supply unit .................................................................................................................226
D.2. Replacing an amplifier..............................................................................................................................227
D.3. Replacing a fan module ............................................................................................................................228
D.4. Replacing the driver..................................................................................................................................230
D.5. Replacing a load........................................................................................................................................231
D.6. Replacing the control unit ........................................................................................................................232
D.7. Changing the driver fuses.........................................................................................................................233
D.8. Replacing the control unit battery ...........................................................................................................234
D.9. Replacing the driver battery.....................................................................................................................235
D.10. Replacing the driver fan .........................................................................................................................236
D.11. Replacing the air filters...........................................................................................................................238
D.12. Replacing an audio board on the driver .................................................................................................239
APPENDIX E: TROUBLESHOOTING.................................................................................................................241
E.1. Complete Reset of the ECRESO FM...........................................................................................................241
APPENDIX F: EMR & SECURITY......................................................................................................................242
F.1. Transmitter Notification Protocol .............................................................................................................242
F.2. EMR Server Security..................................................................................................................................242
FOR MORE INFORMATION............................................................................................................................243

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1. INTRODUCTION
1.1. About WorldCast Systems
WorldCast Systems is a leading solution provider with over 60 years of experience in media and broadcast.
Our solutions and services cover the entire broadcast chain from field contribution, to audio/video distribution over
IP, FM transmission, RDS encoding, signal measurement, telemetry, antenna management, and remote monitoring
and control.
With our established brands APT, Ecreso, Audemat, and the NMS solution KYBIO Media, we are trusted by customers
worldwide including large network operators, regulation authorities, national broadcasters and local, community
stations. From product and software supply to full turnkey solutions, we accompany our customers throughout all
phases of their project.
Our team's mission - to help our customers deliver the best service to their audience, while lowering total cost of
ownership and benefiting from the best user experience.
WorldCast Systems is a part of WorldCast Group and employs around 100 people worldwide. With its headquarters in
Bordeaux, France, and offices in Miami and Kuala Lumpur, the group generates more than 85% of its turnover
internationally. Customers also benefit local support through a large network of trusted partners and distributors.
Our In-House Expertise covers:
•Research & Development
•Production & Quality Testing
•Systems Integration
•Turnkey Projects
•Project Engineering & Customer Support
•Training Academy
•Maintenance & Technical Support
Why We're Here
We believe in bringing the most advanced solutions to our customers, enabling them to deliver to their audience
continuous on-air broadcasting of information, music, radio, tv....while at work, on the road, at home.
•Keep Your Audience Loyal by delivering them a great experience with content that is delivered continuously
and with the highest quality.
•Reduce Your Operating Costs with broadcast solutions that are competitive at the time of purchase and that
continue to drive savings throughout our products’ lifespan.
•Protect Your Investment with tools that enable optimum operating conditions of your network infrastructure
and maximum site performance
What We Value
•360° Innovation
oCollegial Management
oDesign Thinking
oFuture-Ready Designs
oAgile Method
•Enhancing The Customer Experience
oGreat User Experience

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oSimplicity
oProduct and Service Excellence
oQuality ISO 9001
•Sustainable Growth
oProduct Efficiency
oLow Consumption Building
oCharitable Foundation For Local Reforestation

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1.2. Before you start
1.2.1. Safety precautions
This equipment complies with international mechanical and electrical standards. To maintain this compliance, as well
as to ensure proper and safe working conditions and avoid electrical shocks and fire hazards, you must comply with
the following recommendations:
•The device should only be utilized in the conditions described in the user manual.
•The device is designed for industrial usage and must only be operated by qualified personnel.
•The device may be heavy; it must be lifted and handled with care, specifically during unpacking and set up.
•Rackable products must be set in cabinet with 19” rack mounting screws.
Electrical precautions
•Disconnect all sources of power before any intervention.
•Any maintenance, adjustment or repair must be carried out by personnel specifically trained by WorldCast
Systems.
•Before switching on the device, make sure the nominal voltage specified on the device matches the mains
nominal voltage.
•The device should only be operated on a stable electrical network. If the electrical network is not stable, a
power conditioner, such as a UPS, must be used
•The device must only be used with a plug that incorporates a protective ground contact.
•To avoid any risk of electrocution, the protective earthing conductor must not be cut, intentionally or
accidentally, either on the device or on the power cord.
•High quality shielded cables are mandatory.
Environmental precautions
•It is necessary to verify that environmental conditions comply with those recommended in the manual.
•Nothing must obstruct the ventilation.
•To avoid any electromagnetic interference, the device must only be used when it is closed, installed in a
cabinet and connected to the earth as per the instructions.
•The device should not be exposed to dripping or splashing and no objects filled with liquids, such as coffee
cups, should be placed on the equipment.
•Connectors may be hot on high power units.
Precautions regarding the lithium battery
This device includes a lithium battery.
If the battery is not correctly replaced, there is a risk of explosion.
Only replace it with a battery of the same type. Contact us before attempting to use another type
•Do not puncture the battery
•Do not throw the battery in fire
•Do not immerse the battery in water
•Do not throw away the used battery, recycle it instead. You may send it back to us if needed.
Perchlorate material –special handling may apply, see https://dtsc.ca.gov/perchlorate/
If these precautions are not followed, the guarantee will be void.
Please refer to the technical manual for beryllium safety information.

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1.2.2. Factory guarantee
WorldCast Systems offers a standard three-year warranty on parts and workmanship from the date the transmitter is
received; this warranty can be extended to five years. WorldCast Systems also offers on 5 and 10 kW transmitters of
the range a ten-year warranty.
If precautions listed section 1.2.1 are not followed, the guarantee will be void.
Using multiple captors, a µSD card records operating conditions which allow a precise and quick diagnostic for after
sale services. If missing or if recorded readings show proper operating conditions have not been respected, the factory
guarantee will be void, whether standard or extended depending on the contract subscribed by the client.
In case the client uses the µSD card for the optional audio backup or to retrieve saved configurations;
•the EMR directory must never be erased
•The µSD card must be quickly placed back in its reader. Absence of readings lasting over one week will lead to
the guarantee being void.
•No other µSD card can be used.
•In case of destruction of the µSD card, contact the support service as soon as possible.
!Please refer to section 5.15 if you need to remove the µSD card.
1.3. Licensing information
Use of OpenEmbedded Ångström V20110531, free license software (mainly GPL).
Use of GWT, licence Apache v2.0, free license software.

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2. DESCRIPTION
2.1. General description
The latest and most powerful system in our range, the ECRESO FM 5 kW and 10kW transmitters offer a truly
revolutionary approach to high power FM transmission.
With all the key advantages of the core ECRESO range, the ECRESO FM 5kW and 10kW add a whole new dimension of
reliability, redundancy and overall efficiency. The power amplifiers, power supplies and even the fan modules are fully
hot swappable and redundant and a completely passive 6-way coupler ensures that, should one of the amplifiers
suffer a fault, the transmitter can stay on-air with minimum power loss indefinitely until the fault is rectified. The
highly efficient, self-monitoring power supplies contribute to an overall transmitter system efficiency of up to 76%, the
highest available in today’s FM broadcast market.
The unique architecture and innovative design ensure ease of access, ease of use and ease of maintenance.
Like with all ECRESO FM transmitters, top signal quality and performance are achieved thanks to the “FM Band Direct
to Frequency” digital modulator which is at the heart of this range.
Ecreso FM transmitters are fully protected against overheating, VSWR and lightning.
They also offers a number of built in functions that can eliminate the additional cost and space requirements of
external equipment.
Fully featured for local maintenance and configuration, they also allow full remote control by Web server, SNMP,
RS232 or GPIO (GPIO as option).
Options available with the current version are:
•SmartFM: developed over 3 years of intense research, this option makes it possible to enhance the listening
experience, reduce FM Operating Costs (Opex) and reduce CO2emissions.
•RDS: the internal RDS encoder makes it possible to manage RDS parameters (PI, PS, TP, TA, PTY, MS, DI, RT,
PTYN, AF, CT) and includes 1 PSN and 2 DSN.
•5-band Sound Processor, which includes:
oSingle digital processing from audio to RF (direct to frequency)
oLow Latency and Powerful DSP based algorithms
oGated and predictive automatic gain control
oEqualization, Bass and Treble Enhancers
oStereo Enhancer and Limiter
o5 Band Processors
o5 Band Limiters
oHF and Final Limiters
oComplete set of audio presets
oIntuitive and complete user interface with settings and vu meters (web based)
oEasy fine tuning of your sonic signature
•SFN: this option includes a 10 MHz input to synchronize the RF sub-carrier to an external source and an
embedded memory on the digital modulator to configure the delays which will allow to the synchronization
between the various transmitters.
•GPIO: additional board (standard digital, analog or digital with “fault memory”) which allows remote control
and management of your transmitter. Available as standard or analog board.

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•Surge protector: to limit the surge caused by lightning, external module
Please refer to Appendix A for more information on option management.
Project co-financed by the European Union, involved in the Aquitaine Area, through the
European Funds for local development.
2.2. Transmitter Description
Based on the customer specifications, WorldCast Systems is able to provide ECRESO FM 5kW/10kW in two different
configurations:
•Standard
•Full Redundancy
The transmitter is a 29U rack which includes the following modules:
ECRESO FM 10kW
Standard
Full Redundancy
Control unit
1 control unit
1 control unit
Exciter
1 exciter*
2 exciters
Power Amplifiers
6 x 2000W power amplifiers
6 x 2000W power amplifiers
Power supplies
6 modules
6 modules**
Peripheral
6U available
4U available
* 2 with double drive option
** 8 with redundant configurations.
ECRESO FM 5kW
Standard
Full Redundancy
Control unit
1 control unit
1 control unit
Exciter
1 exciter*
2 exciters
Power Amplifiers
3 x 2000W power amplifiers
3 x 2000W power amplifiers
Power supplies
3 modules
3 modules**
Peripheral
6U available
4U available
* 2 with double drive option
** 4 with redundant configurations.

ECRESO FM 5kW / 10kW, user manual–11/2021
Page 15
WorldCast Systems SAS - 20 avenue Neil Armstrong - 33700 Mérignac (Bordeaux Métropole)FRANCE
[phone] –www.worldcastsystems.com –[e-mail]
2.3. Transmitter front view
ECRESO FM 10kW:
* ECRESO FM 5kW: 3 amplifiers
Exciters
(Dual-drive configuration)
Control unit
Power supplies
2000W Amplifiers *

ECRESO FM 5kW / 10kW, user manual–11/2021
Page 16
WorldCast Systems SAS - 20 avenue Neil Armstrong - 33700 Mérignac (Bordeaux Métropole)FRANCE
[phone] –www.worldcastsystems.com –[e-mail]
2.4. Transmitter rear view
ECRESO FM 10kW Top to top configuration:
* ECRESO FM 5kW: 1 single load
Coupler
Inlet fan bloc
Filter
Load 1 slot + Load 2 *
Splitter
Outlet fan bloc

ECRESO FM 5kW / 10kW, user manual–11/2021
Page 17
WorldCast Systems SAS - 20 avenue Neil Armstrong - 33700 Mérignac (Bordeaux Métropole)FRANCE
[phone] –www.worldcastsystems.com –[e-mail]
2.5. Synoptic diagrams
Synoptic diagrams are presented in this section for the following configurations:
•ECRESO FM 5kW Standard version (room/top)
•ECRESO FM 5kW Full redundancy (room/top)
•ECRESO FM 5kW Standard version (top/top)
•ECRESO FM 5kW Full redundancy (top/top)
•ECRESO FM 10kW Standard version (room/top)
•ECRESO FM 10kW Partial redundancy (room/top)
•ECRESO FM 10kW Full redundancy (room/top)
•ECRESO FM 10kW Standard version (top/top)
•ECRESO FM 10kW Full redundancy (top/top)
The diagram specific to your system is available on the door of the transmitter.