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Combining the very latest technologies with ECRESO’s proven RF experience, our 300W FM Transmitter from the Worldcast Systems Group has been designed to offer an innovative and highly reliable solution for low power transmission. Based on a 6th Generation MOSFET, the Ecreso FM 300W is highly robust and delivers efficiency of up to 70%. Top signal quality and performance are achieved thanks to the “FM Band Direct to Frequency” Digital Modulator. It also offers several innovative features such as dynamic RDS encoding and 5 band sound processing. Fully featured for local maintenance and configuration, the Ecreso FM 300W allows extensive remote control by Web server, SNMP, RS232 or GPIOs.
Main Features:
• Digital Exciter and Digital Stereo Encoder
• Audio (Analog and Digital), 2 MPX/SCA inputs
• Silence detection with auto switch
• N RF Output
• CAN and RS232 communication ports
• Up to 70% efficiency
• 3-year warranty (optional 10-year warranty)
Specifications:
• Frequency range: 87.5 to 108 MHz by 10 kHz steps
• Frequency stability: < 10-6 per year
• HF output: N Type, 50 Ω
• Power range: Range: 20-300 W, Setting: 0-350 W
• VSWR: < 1.35, Optimal performance: < 1.1
• Spurious and harmonic suppression: > 75 dBc
• Efficiency: up to 70% for the ECRESO FM 300W
• Max consumption: 500 W
• Voltage: 100 VAC to 254 VAC, 47 Hz - 63 Hz
• Power factor: > 0.9
• Fuses: 10 AT
• Analog input (LINE1): 2 XLR connectors, balanced, >10 kΩ (600 Ω jumpers selectable), software adjustable level (-18/+18 dBu range)
• AES Input (LINE2): 1 XLR connector, balanced, >110 Ω, software adjustable level (-20 to 0dBFS range), AES 16,24,32 bits, up to 192 kHz
• 2 Multiplex (MPX/SCA) inputs: BNC type, unbalanced, >5 kΩ, software adjustable level (-18/+18 dBu range) Composite operation:
• Bandwidth: > 40 Hz to 53 kHz @ 0.1 dB, > 20 Hz to 60 kHz @ 0.2 dB, > 60 kHz to 80 kHz @ 0.4 dB
• Intermodulation distortion: < 0.05%
• FM S/N ratio: > 80 dB RMS @ 75 kHz deviation
• AM noise: < 0.1% (50 dB) RMS (20-20 000 Hz)
Stereo operation:
• Bandwidth: > 20 Hz to 15 kHz @ 0.1 dB
• 38 kHz discontinuance: > 50 dB
• Stereophonic crosstalk: > 50 dB
Mono operation:
• Bandwidth: > 40 Hz to 15 kHz @ 0.1 dB
• Out of band rejection: > 40 dB @ 19 kHz
• Preemphasis: 0 μs, 50 μs or 75 μs
Environmental / Physical specifications:
• Overall dimensions: Overall: 487.5 X 2U X 475 mm, Rack size: 437.7 X 82 X 443.8 mm (WxHxD)
• Enclosure depth required: 600 mm
• Mounting: 19’’enclosure, with 4 M6X12 screws
• Weight: ~9 kg / ~9.5 kg
• Operating temperature: Nominal: 5°C to 45°C, Maximum: 0°C to 50°C
• Storage temperature: -20°C to +70°C
• Humidity: 5 - 95 % non-condensing relative humidity
• Altitude: Up to 3900 m
• Cooling: 1 fan: between 10 l/s and 30 l/s depending on ambient temperature
• Marking: CE, FCC, ICC
• Standards: 1999/5/CE (R&TTE), ETS 302 018 (EMC), ETS 300 384 (Radio), NF EN 60215 (Safety)
