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19
ᕤᕥᕦᕧᕨ
ᕡᕢᕣ
ᕩ
¸µ
18
4 Connections and operating elements
ᕡ Antenna socket (special Lemo)
ᕢ Headphone socket (3.5 mm Ø stereo jack)
ᕣ On/off/volume control
ᕤ Balance control
ᕥ Stereo/FOCUS selector switch
ᕦ Limiter switch
ᕧ Squelch control
ᕨ Channel selector switch
ᕩ Coverplate
µ Operation and battery status indicator (blinks if battery voltage
drops below a certain value)
¸ RF signal indicator (indicates signal is above the squelch
threshold)
3 Noise reduction with HiDyn
stage
This receiver is equipped with HiDyn
stage
, the Sennheiser noise
reduction system that has been specially developed for stage use.
HiDyn
stage
reduces RF interference and increases the signal-to-noise
ratio in wireless audio transmission.
HiDyn
stage
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.
Note
Only transmitters which are also equipped with HiDyn
stage
can work correctly in combination with the EK
3053-U receiver. If this is not the case, the dynamic
range is drastically reduced and the transmission sounds
high and shrill.
HiDyn
stage
cannot be switched off on the EK 3053-
U receiver.