Elenos ET25000 Indium Dual Driver STEREO+AES/EBU+AUDIO CHANGE OVER. +TC/TS + WEB E-BOX2.0

25000 Watt Stereo Indium Transmitter 230/380 V. Threephase switching power supply system with PFC. Proportional logic protections, uninterruptable operation. Built-in Stereo Coder.  Telemetry and SMS capability with internal GSM modem (optional) Webserver and SNMP controls  (optional). - Composed by: 5 x E 5000 Amplifiers + Combiner + ETG 20 (with TC/TS board for remote controls , interlock and  Profile board to be used in 1+1 or N+1 systems) +  Air Extractor, 40  rack units.

The ET Indium high power product family consists of FM transmitters in which the high power output is obtained through the combination of a suitable number of E 4RU medium power amplifiers (2500 - 5000 W.), a single ETG 2RU or dual set of 2 ETG 2RU modulators (Exciters) and a combiner for the power amplifiers. The overall RF power of the models in this product series ranges from 7 KW to 30 KW and each system can be housed in a single 19” rack. These products represent the most advanced technology in terms of electrical efficiency, compactness, reduced weight, ease of use, and diagnostics. Additionally, the technology in the Elenos High Power Transmitter Line offers the most complete access to transmitter operating data, protection operation, and the ability to operate under severe environmental conditions while maintaining undiminished RF and audio specifications

Features: 

Smart Design

Ultra compact size, light weight, clean layout, ease of maintenance and repair.

Low energy consumption

Highly reduced energy consumption and significantly lowered operating costs due to state of the art nature of the design.

Reliability

Extremely high reliability and the ability to ensure continuity of the service even under extreme operating conditions due to intelligent safety protocols, Icefet technology, and Lifextender algorithms.

Total control

Accurate and detailed real time data on the operating status of the transmitter, available at the analytical level, (voltage, current, power, temperature, efficiency, safety, settings, audio levels, communications.) Local and remote management and control via Sereial Protocol, SMS, GPRS, SNMP, WEB.

Scalability

All products are designed to be scalable with the greatest advantage that any technological improvement affecting the base product is directly transferred to all equipment in the product family via upgrades.

COMPOSITION

• Exciter (Indium series)
  • n°1 Exciter Indium Series single drive configuration
  • n°2 Exciter Indium Series dual drive configuration 
• Amplifier
  • n°5 E5000 Indium Series
• Combiner
  • n°1 5-way combiner IN 5000 - OUT 25000 with external CPU/control unit and load (4U)
• Dummy load
  • n°1 dummy load (4U)
• Control unit
  • n°1 control unit (4U).
  • From the frontal panel/from PC, a careful analysis of the functioning through detailed measurement of currents, voltages, temperatures and powers
• RF output connector
  • 3+1/8”
• Circuit breaker box
  • 6U (on rear panel)

GENERAL DATA

• Output nominal maximum power
  • 25000 W
• Output power range
  • 2500 ÷ 25000 W
• Operating band
  • 87.5 ÷ 108 MHz
• Dimensions: Rack units
  • min. 40U
• Dimensions: W - H - D
  • 56.5 - 228.2 - 107.8 cm (with fan)
• Weight
  • 400 kg
• RF power stage technology
  • ICEFET & ECOSAVING
• Automatic power RF control
  • Stabilized output power value on the set value
• Overall output power RF stability
  • +/- 0.1 dB
• Cooling system
  • Forced air-cooling
• Air outlet
  • On the top. Cooling flow 4000 m3/h (depending on environment)
• RS232/RS485
  • Yes. Connector DB9 female
• Points of measure
  • RF Sample - MPX Monitor

AUDIO PERFORMANCE

• MPX input level
  • +15/-10 dBu for 75 KHz standard deviation
• MPX level adjustment
  • Soft adjust 0.1 dB steps from front panel
• MPX input impedance
  • 5 KΩ selectable
• L/R input level
  • +15/-10 dBu for 75 KHz standard deviation
• L/R level adjustment
  • Soft adjust 0.1 dBu steps from front panel
• L/R Input Impedance
  • Selectable 10 K - 600 Ω, balanced
• AES/EBU input resolution
  • 24 bits
• AES/EBU input sample rate
  • 32,44.1,48,96 KHz Automatically selected
• AES/EBU input level
  • -20 dBFS - 0 dBFS
• AES/EBU input impedance
  • 110 Ω balanced
• AES/EBU-Analog input automatic changeover
  • Yes
• PILOT Amplitude adjustment
  • Soft adjust 0.05% steps from front panel
• PILOT Phase adjustment
  • Soft adjust 0.01 degree steps from front panel
• PILOT tone frequency
  • 19 KHz
• PILOT tone deviation
  • Soft adjust +/- 7.5 KHz
• PILOT tone frequency stability
  • +/- 1 Hz
• THD+N (stereo/mono operation)
  • < 0.05% with 75 KHz frequency deviation < 0.05% with 100 KHz frequency deviation 30 Hz to 15 KHz
• Pre-emphasis
  • 0/25/50/75 microseconds, selectable
• Pre-emphasis tolerance
  • +/- 0.1 dB
• FM S/N (MPX operation)
  • 82 dB 20 Hz to 23 KHz @ 53 KHz - detector RMS
• FM S/N CCIR (stereo/mono operation)
  • > = 72 dB weighted > = 72 dB unweighted 400 Hz, 75 KHz frequency deviation, quasi-peak detector, 50 us de-emphasis
• Asynchronous AM S/N unweighted
  • > = 55 dB a 400 Hz, 75 us de-emphasis
• Synchronous AM S/N
  • > = 50 dB a 400 Hz, 75 us de-emphasis
• Amplitude-frequency characteristic (stereo/mono operation)
  • +/- 0.1 dB (without pre-emphasis) +/- 0.1 dB (with pre-emphasis) 20 Hz to 15 KHz, @ 400 Hz 
• Stereo Crosstalk (typical)
  • 60 dB @ 400 Hz to 10 KHz
• Linear crosstalk
  • >60 db 20 Hz to 15 KHz
• Intermodulation distortion
  • <0.05% Measured with two of tones 1 KHz & 1.3 KHz, ratio 1:1 at 100% modulation
• Class of emission
  • F3
• Stereo emission
  • According to ITU-R reccomendation 450 (pilot tone)

EXCITER PERFORMANCE

• PLL lock time
  • <10 sec
• Frequency deviation
  • +/- 75 KHz 0.1 dB steps adjustable
• Maximum frequency deviation
  • +/- 150 KHz
• Frequency stability
  • 1 ppm
• RF Frequency steps
  • 10 KHz
• Phase Response
  • +/- 0.1 degree from linear phase; 20 KHz to 100 KHz

INSTALLATION REQUIREMENTS

• Power supply
  • 380 V or 400 V, Threephase + neutral wire 50-60 Hz* 210 V, Threephase (WYE without neutral)* * to be specified when placing the order
• Power consumption
  • 37 KW
• Current consumption @230VAC/Threephase
  • 92 A
• Overall efficiency (typical from - 3 dB to Pman)
  • 68%
• Power factor
  • >0.95
• Current consumption @380VAC/Threephase
  • 53 A

ENVIRONMENT

• Temperature range (operating)
  • -5 ÷ +45 °C, 23 ÷ 113 °F
• Temperature range (non operating)
  • -20 ÷ +55 °C, -4 ÷ 131 °F
• Humidity range (operating)
  • 95% @ 40 °C, 104 °F
• Humidity range (non operating)
  • 90% @ 55 °C, 131 °F
• Altitude range (operating)
  • <3000 meters / <9840 Feet
• Altitude range (non operating)
  • <15000 meters / < 49200 Feet

TELECONTROL & TELEMETRY

• Remote control
  • Yes
• Remote Control at clean contacts
  • Yes
• SNMP option
  • Yes (external)