2KW FM Transmitter, EM 2000 HE DIG PLUS OMB

        EM 2000 HE D

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            The 2KW FM transmitter, EM 2000 HE DIG PLUS, has been created by the OMB center of development for high efficiency transmitters. It consists on the high efficiency 2KW amplifier, FMA 2000 HE, with >73% efficiency and the EM 25 DIG PLUS, a 25W FM transmitter. The high efficiency 2KW amplifier has an approximate consumption of 2600VA at 230Vac, so it pays for itself in a short period of time due to its low consumption. This 2KW FM transmitter is also available in Dual Drive version

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              € 11.954,99

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      Volume discounts - 2KW FM Transmitter, EM 2000 HE DIG PLUS OMB

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        2 € 11.715,89 Up to € 478,20
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        Product Discription:

        MAIN FEATURES OF THE 2KW FM DIGITAL TRANSMITTER MANUFACTURED BY OMB:
         

        • Typical AC efficiency >73% and typical RF efficiency of 84%.
        • Two amplifying modules of 1000W with MOSFET technology.
        • Two independent switching power supplies connected in parallel to maintain the equipment working in case any of them fails.
        • TFT screen and touch keyboard to control and to visualize operation parameters.
        • Memory recording of events.
        • Speed control of cooling fans according to temperature of power modules so as to optimize consumption and to decrease acoustic contamination.
        • Advanced protection against load mismatches without transmission cuts and fast protection in case of excessive reflected power and/or excessive input power.
        • Analog telemetry, digital remote control and telemetry RS232, remote control by opened/closed contacts
        • Low pass filter, Mains EMI filter and internal single-phase transient suppressor.
        • Automatic power reduction at night when used in combination with the EM 25 DIG PLUS transmitter.
        • Automatic power reduction in case of high temperature, the equipment returns automatically to its rated power value when the temperature reaches back an average value.
        • Automatic power reduction in case of excessive reflected power.
        • Automatic voltage control for efficiency optimization.
        • Power supplies of the amplifier are hot removable and interchangeable.
        • Automatic voltage control for efficiency optimization
           
        GENERAL CHARACTERISTICS

        CHARACTERISTICS AMPLIFIER FMA 2000 HE HPPS

        FREQUENCY RANGE 87.5-108MHz
        INPUT RETURN LOSS -20dB
        INPUT POWER <15W
        OUTPUT POWER 2000W nominal, manual and automatic adjustable
        POWER GAIN 19.2dB minimum
        TOTAL EFFICIENCY >73% typical
        RF EFFICIENCY 84% typical
        COOLING Forced air, speed control of fans
        HARMONICS LEVEL -80dBc
        INPUT/OUTPUT IMPEDANCE 50Ω
        RF INPUT CONNECTOR N(F)
        RF OUTPUT CONNECTOR 7/16"or EIA 7/8"
        RF MONITOR CONNECTOR BNC(F)
        POWER SUPPLY 230VAC ±15% → 195 ÷ 265VAC, 50/60Hz
        CONSUMPTION 2600VA (@2000W output power)
        PROTECTIONS Reflected power, forward power, overdrive, and overcurrent in power modules. Smart temperature protection. Ultra-fast protection against reflected and input power. Real time registration of events. Exciter’s inhibition
        TELEMETRY AND REMOTE CONTROL Analog telemetry (direct and reflected power measurements). Digital telemetry and remote control RS232. Remote control by opened/closed contacts
        OPERATION TEMPERATURE -5 to +40°C
        WEIGHT 20Kg approx. (without rack)
        DIMENSIONS 3 standard rack

         

        EXCITER EM 25 DIG PLUS
        FREQUENCY RANGE 87.5-108MHz
        FM MODULATION 75KHz (adjustable) peak deviation. Mono 180kF3E and Stereo 256kF3E
        AUDIO/MPX INPUT LEVEL -3.5 @ +12.5dBm @ 75KHz deviation
        AUDIO INPUT CONNECTORS XLR(F)
        AUXILIARY CHANNEL (RDS/SCA) INPUT LEVEL 7.5KHz deviation: -12.5 to 3.5dBm and 2KHz deviation: -24 to -8dBm
        AUX. CHANNEL INPUT IMPEDANCE 10kOhm
        MODULATION DISTORTION 7.5Khz deviation: <0.05%, 0.02% typical; 2KHz deviation: <0.2%, 0.05% typical
        S/N MONO RATIO 30 to 20000Hz: >76dB, 86dB typical, CCIR: >75dB, 81dB typical

         

        Technical specifications:


         

        S/N STEREO RATIO 30 to 20000Hz: >72dB, 77dB typical, CCIR: >68dB, 72dB typical
        AUDIO CHANNELS BANDWIDTH 30 to 15000Hz ±0.1dB
        PRE-EMPHASIS TIME CONSTANT Selectable, 25/50/75 microseconds
        RF NOMINAL OUTPUT POWER 25W
        TUNING STEPS OF TRANSMITTER 10/100KHz
        ALC OUTPUT POWER STABILITY ±3%
        SPURIOUS AND HARMONIC EMISSIONS <80dBc
        RF OUTPUT IMPEDANCE 50Ω
        RF INPUT POWER CONNECTOR N
        RF SAMPLING CONNECTOR BNC
        POWER SUPPLY 110-230Vac ±15% 50-60Hz
        OPERATION TEMPERATURE RANGE 0 to 40°C recommended, -10 to 55°C max.
        RELATIVE HUMIDITY Up to 95% without condensation
        DIMENSIONS 484x300x90mm, 2 standard rack units of 19"
        WEIGHT 7Kg

         

         

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