TECHNICAL CHARACTERISTICS
RF SPECIFICATIONS
MONO SPECIFICATIONS
Operating frequency range RF Output Impedance VSWR Frequency stability Modulation Mode Preemphasis Asynchronous AM S/N Ratio Synchronous AM S/N Ratio RF Harmonics Attenuation RF Spurious Attenuation
87.5 ÷ 108 MHz (10 kHz steps) 50 Ω 1.5:1 Maximum with automatic fold-back at higher VSWR ± 1 ppm from -5°C to 45°C Mono, Stereo, Multiplex, SCA, RDS, AUX Flat/50/75 µs selectable from front panel - 68 dB below reference carrier with 100% AM modulation @ 400 Hz, without FM modulation - 65 dB below reference carrier with 100% AM modulation @ 400 Hz with FM modulation ± 75 kHz @ 400 Hz < -70 dBc < -80 dBc
Audio Input Impedance Audio Input Level Input Connector Audio Frequency Response Harmonic Distorsion S/N ratio Stereo separation Crosstalk attenuation Pilot frequency Modes
MULTIPLEX SPECIFICATIONS
FM & TV
Broadcasting
600 Ω balanced, 10 kΩ unbalanced -3 to +9 dBm (from 30W to 300W) -6 to +10 dBm (for 500W and 1000W) XLR female ± 0.15 dB, 30 Hz to 15 kHz ≤ 0.06%, from 40 Hz to 15 kHz < -80 dB RMS detector 30÷80 Hz ≤ -53 dB, 80Hz÷15kHz ≤ -65 dB (typ.70 dB) Main to Sub -40 dB 30 Hz to 15 kHz (typ. -55 dB 100 Hz to 8 kHz) 19 kHz ± 1 Hz Stereo, Mono L+R, Mono L, Mono R
Composite Input Impedance Composite Input Level Input Connector Composite Amplitude Response S/N ratio
SCA, RDS, AUX SPECIFICATIONS
for
600 Ω balanced, 10 kΩ unbalanced -3 to +9 dBm (from 30W to 300W) -6 to +10 dBm (for 500W and 1000W) XLR female ± 0.15 dB, 30 Hz to 15 kHz ≤ 0.06%, from 40 Hz to 15 kHz < -82 dB RMS detector
Audio Input Impedance Audio Input Level Input Connector Audio Frequency Response Harmonic Distorsion S/N ratio
STEREO SPECIFICATIONS
Passion
Input Impedance Input Level
1.2 kΩ unbalanced -3 to +6 dBm (from 30W to 300W) -6 to +10 dBm (for 500W and 1000W) BNC female ± 0.2 dB, 30 Hz to 100 kHz < -82 dB RMS detector
Input Connector Frequency Response
3 kΩ -3 to +6 dBm (from 30W to 300W) -6 to +10 dBm (for 500W and 1000W) BNC female ± 0.2 dB, 40 Hz to 15 kHz
AES/EBU MODE (OPTION)
Input connector Data format D/A converter Sampling frequency
XLR female, optical TOS-LINK S/PDF, AES/EBU, IEC958, EIAJCP340/1201 24 bit from 32 to 96 kHz
ELECTRICAL AND OPERATING CHARACTERISTICS
AC input power Cooling Operating temperature Relative humidity
90 ÷ 260 VAC 50/60 Hz single phase Forced air with internal fan - 5°C to +45 °C Up to 90% Features and specifications subject to change without notice.
30W ÷ 1kW Compact FM Transmitters/Exciters
DB Elettronica Telecomunicazioni SpA - Riviera Maestri del Lavoro 20/1 - 35127 Padova - Italy ph +39 049 8700588 fax +39 049 8700747 - www.dbbroadcast.com - sales@dbbroadcast.com
DPM series
30W ÷ 1kW Compact FM Transmitters/Exciters DPM series
• Compact size and reduced weight. The DPM series are characterized by very small dimensions and very low weight, reducing transportation costs and simplifying the logistic. • Remote control. Full remote control capability with all main parameters. Power output adjustment, on/off, alarms reset, Power Output, VSWR, frequency deviation measurement and alarms status are the main possibilities of remote control function. • Other functions: Possibility to select 7 frequencies programmed for systems N+1. Control of the transmission and modulation parameters from the frontal panel display.
• The DPM series are designed to operate between 87 -108 MHz frequency range for FM radio broadcasting appliances with RF output power completely adjustable from 0 to 30-60-100-150-300-500-1000 watts by
• Available Options. Digital input AES/EBU - Web server interface - RDS option - External reference oscillator (10 MHz input SMA 0 dBm). • Meets or exceeds the international standard for the safety and electrical specifications.
external control, ideal as stand-alone transmitter or versatile exciter for power amplifiers. • No tuning or adjustments required. The output frequency can be easily changed in all the range from the front LCD panel without any other adjustment. • Top quality sound. The generated signal is characterized by an excellent signal/noise ratio and by negligible residual AM and FM. All this guarantees the best quality of the broadcast signal. • Digital stereo coder. High performances built-in digital stereo coder with stereo separation greater than 65dB and signal/noise ratio over 80dB for a top sound-quality. • Deviation limiter. It limits the maximum frequency deviation to a value within the international requirements. This is to avoid adjacent channels invasion in case of accidental over modulation. • High frequency stability. In short and long terms a high frequency stability is assured by Digital Phase Locked Loop circuit with low drift quartz. • Electronic protections. In case of over-voltage or transmitting frequency error (LOCK) or mismatching (VSWR) or over-temperature (TEMP) the power output is automatically reduced to keep your station on the air. Every alarm event is displayed on the frontal panel. • Modular design. The modular internal construction of the DPM transmitters/exciters widely simplify the maintenance with easy identification of the modules and reduced number of interconnections among them. • Switching mode power supply. High efficiency and oversized switching mode power supply gives greater reliability and reduced consumption.
PF SERIES TRANSMITTERS MODEL DPM 30 DPM 60 DPM 100 DPM 150 DPM 300 DPM 500 DPM 1000 * Other on request
OUTPUT POWER 30 W 60 W 100 W 150 W 300 W 500 W 1000 W ** At maximum power
OUTPUT CONNECTOR* N N N N N DIN 7/16” DIN 7/16”
POWER CONSUMPTION** 79 VA 130 VA 210 VA 312 VA 490 VA 770 VA 1490 VA
DIMENSIONS (WXDXH) 485x385x44 mm (1U rack 19”) 485x385x44 mm (1U rack 19”) 485x385x44 mm (1U rack 19”) 485x385x44 mm (1U rack 19”) 485x440x88 mm (2U rack 19”) 485x440x88 mm (2U rack 19”) 485x440x88 mm (2U rack 19”)
WEIGHT WITH RACK 4.0 kg 4.0 kg 4.0 kg 4.0 kg 15.0 kg 15.0 kg 15.0 kg