Sennheiser FT-902S15 Satellite Radio User Manual


 
HiDyn plus
®
1.3
»HIDYN plus
®
« NOISE REDUCTION SYSTEM
The »HIDYN plus
®
« noise reduction system serves to reduce the effects
of RF interference fields. It increases the signal-to-noise ratio and gets
close to about 110 dB for peak modulation.
»HIDYN plus
®
« is a wideband compander system. It is a combination of
a compressor at the transmitter (ratio 2:1) and an expander at the
receiver, the compressor reducing the volume of the signal and the
expander restoring it. The optimized dynamic range and the control
amplifier in the transmitter effectively reduce modulation problems.
»HIDYN plus
®
« has been expecially developed by Sennheiser for studio
and stage applications.
Its features:
extemely low degree of noise modulation
level compensation
excellent dynamic range due to the control amplifier
DYNAMICS OF THE AF OUTPUT SIGNAL
DYNAMICS OF THE AF INPUT SIGNAL
EXPANSION AT THE
RECEIVER
COMPRESSION AT
THE TRANSMITTER
DYNAMICS OF THE AUDIO SIGNAL
IN THE RF-SIGNAL (MAX 60 DB)
SYSTEM NOISE PLUS MODULATION/DEMODULATION
NOISE IN THE TRANSMITTER PATH
HIDYN plus
®
HIDYN plus
®