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Using the EM 9046
"RF mode" – Adjusting the transmission mode
HD (high definition)
The
"RF
mode" menu item allows you to adjust the transmission mode:
"HD (High
Definition)": Transmission of an audio signal without audio data
compression. As a result, the audio signal remains pure and unadulterated.
In "HD" transmission mode, the range can be restricted compared to "LR"
transmission mode.
"LR (Long
Range)": Transmission of an audio signal whose bit rate is
reduced – before transmission – by an audio data compression technique
(SeDAC, Sennheiser Digital Audio Codec). This compression technique pro-
vides excellent audio quality and a large transmission range. The sensitiv-
ity to interference is reduced compared to "HD" transmission mode.
The selection of the transmission mode depends on the result of the fre-
quency scan. For more information, refer to the chapter "Frequency scan"
– Performing a frequency scan of all 8 frequency ranges from page 56
onwards.
"Gain" – Adjusting the input gain
0
The "Gain" menu item allows you to adjust the input gain of selected chan-
nels, independent of whether the transmitter to be synchronized supports
the adjusted value. The factory preset is −6 dB. The adjustment range is
from −6 dB to +60 dB.
After synchronization with the transmitter, the value actually adopted by
the transmitter is written back to the menu item.
If you select "line" in the "Cable" menu item (see page 82), the input
gain in the "Gain" menu item is set to the fixed value of –6 dB.
"Low cut" – Setting the low-cut filter
30
Via the
"Low
cut" menu item, you can set the transmitter's low-cut filter.
Possible settings: 30 Hz to 120 Hz.
You can adjust this setting independent of whether the transmitter to be
synchronized supports the adjusted value.
dB
Hz
Digital 9000
rf mode
gain
low cut
| 81
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