EM 1000W FM Transmitter HE DIG PLUS COMPACT OMB FM

MAIN FEATURES OF THE 1KW FM COMPACT TRANSMITTER MANUFACTURED BY OMB:
 

• Typical AC efficiency of 75%. Typical RF efficiency of 84%
• 2 amplifying modules of 600W with MOSFET technology
• Memory recording of events
• Speed control of cooling fans according to the temperature of power modules for optimizing the consumption and decreasing the acoustic contamination
• Advanced protection against load mismatches without transmission cuts and fast protection in case of excessive reflected power and/or excessive input power
• Low pass filter, Mains EMI filter and internal single-phase transient suppressor
• Automatic power reduction at night
• 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
   

GENERAL CHARACTERISTICS

• FREQUENCY RANGE 87.5-108MHz
• FM MODULATION 75KHz (adjustable) peak deviation. Mono 180kF3E and Stereo 256kF3E
• AUDIO/MPX INPUT LEVEL -3.5 to +12.5dBm @ 75KHz deviation
• AUDIO INPUT CONNECTORS XLR(F)
• AUX. CHANNEL INPUT LEVEL (RDS/SCA) 7.5KHz deviation: -12.5 to 3.5dBm 2KHz deviation: -24 to -8dBm

Technical specifications:

• AUX. CHANNEL INPUT IMPEDANCE 10KOhm
• MODULATION DISTORTION 7.5KHz deviation: <0.05%, 0.02% typical
  2KHz deviation: <0.2%, 0.05% typical
• MONO S/N RATIO 30 to 20000Hz: >76dB, 86dB typical
  CCIR: >75dB, 81dB typical
• STEREO S/N RATIO 30 to 20000Hz: >72dB, 77dB typical
  CCIR: >68dB, 72dB typical
• AUDIO CHANNELS BANDWIDTH 30 to 15000Hz ±0.1dB
• PRE-EMPHASIS TIME CONSTANT Selectable, 0/50/75 microseconds
• NOMINAL RF OUTPUT POWER 1000W
• CONSUMPTION 1300VA at 1000W output power
• TOTAL EFFICIENCY >73% typical
• RF EFFICIENCY 84%
• TRANSMITTER TUNING STEPS 10/100KHz
• OUTPUT POWER ALC STABILITY ±3%
• HARMONICS AND SPURIOUS EMISSIONS <80dBc
• RF OUTPUT IMPEDANCE 50Ω
• RF OUTPUT CONNECTOR N type, 7/16”(F) optional
• RF SAMPLER CONNECTOR BNC type
• POWER SUPPLY Single phase 110-230Vac ±15% 50/60Hz
• OPERATING TEMPERATURE RANGE 0 to 40°C recommended, -10 to +55° max.
• RELATIVE HUMIDITY Up to 95% not condensed
• DIMENSIONS 2 standard rack units of 19”
• WEIGHT 20Kg