FM TRANSMITTER AND BROADCASTING SYSTEMS
AUDIO COMPRESSOR LIMITER
The audio level in any sound broadcasting system must be controlled to prevent over modulation. The current trend is for broadcast stations to transmit a constant level of audio optimised to 100%. The Aareff Limiter Compressor is specifically designed to achieve constant 100% modulation without any over modulation using an FM broadcasting transmitter. The result is a professional sound on your station output with all music and speech inputs. This unit is fully enclosed in aluminum and steel casing measuring 279 x 190 x 89 mm.
Both of the following units come with a power supply for connection to any AC voltage between 90 and 260 V AC. Operation is also possible from 11 to 14V DC, ideal of vehicle battery or low voltage systems.
This unit is also available with a built in Stereo Coder. The result of this is that instead of coming out with separate left and right audio channels, the output is single line with MPX. MPX is the Multiplex signal that is used on a non-stereo MPX input transmitters.
Peak Limiting with AGC Action
Better than 1 mS Attack Time
Very Low Noise (-75 dBu S/N Ratio)
Very Low Distortion (0.2% at limiting)
30Hz-15KHz Frequency Response
50uS Pre-emphasis (75uS USA)
Standard 0dBu 775 mV rms Output
3 LED's indicate Compression Level
Single Supply Operation 11-16V DC
Audio Inputs up to +24dBu 12Vrms