Sennheiser EM 3532-U Service Manual download pdf (Page 6)

3 Noise reduction with HiDyn

plus

™

Progress you can hear:

This receiver is equipped with

HiDyn

plus

™

, the Sennheiser noise reduction system that reduces RF

interference. It increases the signal-to-noise ratio in wireless audio transmission to up to 110 dB.

The 96 dB dynamic range of a CD is thus considerably surpassed.

HiDyn

plus

™

is a wideband compander system which compresses the AF level on the transmitter

side in a ratio of 2:1 (related to dB), and expands it in exactly the same way on the receiver side.

The optimisation of the dynamic range and the supporting effect of the control amplifier in the

transmitter effectively reduce modulation problems.

HiDyn

plus

™

has been specially developed for use in high quality radiomicrophone systems.

Note

Only transmitters which are also equipped with HiDyn

plus

™

can work correctly in

combination with the EM 3532-U receiver. If this is not the case, the dynamic

range is drastically reduced and the transmission sounds blunt and flat.

HiDyn

plus

™

cannot be switched off on the EM 3532 receiver.

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Sennheiser EM 3532-U Service Manual Page 6