BBE35 30w transmitter

More info

  • Transmitter equipped with integrated audio processing, allowing use without an audio processor.
  • Belgian manufacture
  • Tropicalized equipment for difficult use
  • Ventilation pro 120 x 120 for use without air conditioning
  • Production carried out according to European directives CE and ETSI - SE
  • Digital audio quality, 16 kHz elliptical digital audio filter (7-pole elliptical filter)
  • The 75 kHz modulation limiter uses a circuit developed by B.BEAM inaudible, undistorted, with clipper output (switched when using an audio processor).
  • The 2 ppm quartz oscillator is temperature controlled (mini thermostatically controlled oven), ultra linear VCO.
  • The PLL uses professional surface components, frequency adjustable by DIP switches (50 kHz steps).

  • The MOSFET amplifier stages increase the output power to 30 Watts (BBE35) and 100 Watts (BBE100).
  • An AGC circuit keeps power constant regardless of the VSWR. It protects the MOSFET transistors in the event of an antenna fault (VSWR).
  • The high frequency starts gradually in order to relieve the amplifiers connected after the transmitter (SOFT START HF).
  • 5-cell output filter better than CCIR standards
  • The power supply is stabilized and protected in voltage, current and temperature.
  • Modular manufacturing; low cost, quick maintenance and troubleshooting
  • Lab test report attached to each device.
  • Aggregation and manufacture to CCIR standard for worldwide use

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SPECIFICATION

MOSFET transistor: The high frequency output stage uses MOSFET transistors. Advantages: robustness, low electrical energy consumption, linearity, high gain, low noise, no intermodulation, little heat dissipation.

AGC (Automatic gain control): The output power is automatically adjusted according to the operating conditions: extreme temperature, humidity, voltage variation, VSWR variation…

Modular: All modules are easily replaceable (Eurocard 16x10). Audio digital quality 16 kHz audio filter is elliptical (7 pole elliptical band pass filter). Distortion and phase shift are negligible. The bandwidth is exceptional, 1 kHz more audio bandwidth compared to other transmitters (gives more brilliance to your radio sound). The audio filter circuit is manufactured with 0.3% sorted components giving a very steep and precise cutoff slope. Conventional choke and capacitor filters were accurate to only +/- 20%! BBE's sound is therefore pure and dynamic and particularly suited to the demands of FM sound.

Balanced audio input: Balanced audio input (XLR) reduces noise by 45 dB; very useful when the audio cable is long between the studio and the transmitter. The L and R input levels are adjustable on the front panel. RDS input: Adjustable level with 3-color LED: green = 4%, orange = 5%, red = & gt; 5%

Digital stereo encoder (/ ST option): Integrated digital encoder developed by BBEAM. Exceptional separation of L / R channels; 70 dB @ 1 kHz, S / N ratio 85 dB and distortion 0.05%. MPX clipper integrated at the output, allows precise modulation at 75 kHz. 19 kHz signal output available to synchronize RDS. RDS input with clipper and adjustable input level. LED

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TECHNICAL SPECIFICATION

Frequency band 

87.5 to 108 MHz

Modulation type

FM 3

Maximum excursion

75 KHz (limiter and clipper inaudible, switchable)

Power

adjustable 0 to 35 Watts (BBE35) 100Watts (BBE100)

Output impedance

50 Ohms (N connector)

Frequency selection

DIP switch

Frequency stability

 +/- 2ppm (-10 ° C to + 50° C)

Harmonic attenuation

better than 70 dB

Spurious attenuation

not measurable (-90 dB)

LF input impedance

600 Ohms

Attenuation at 19 kHz

65dB



Audio bandwidth

15 to 16.000 Hz

Pre-emphasis

0 & 50 µs switchable

AF signal distortion

0.05 %

LF band linearity

0.1 dB

Supply

220 V AC +/- 10 % 50 Hz +/-10 %

Consumption at Max.output power

BBE35: 120 VA
BBE 100: 200 VA

Operating temperature

 -10° C à + 50° C

Humidity

95%

Dimensions (mm)

H = 135 mm L = 485 mm P = 360 mm

Weight

9.5 Kg

OPTIONAL

Integrated digital stereo encoder

Dynamic integrated rds encoder

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