Lectrosonics Inc DB Benutzerhandbuch
DSW Digital Wireless System
Rio Rancho, NM
23
Adjust Receiver Analog Audio Output Level
The analog audio output of the receiver is set at maxi-
mum, and lower levels are achieved with an attenuator
to reduce the signal level to match the level require-
ments of other equipment. This means that there is no
difference in signal to noise ratio regardless of where
the receiver output level control is set.
mum, and lower levels are achieved with an attenuator
to reduce the signal level to match the level require-
ments of other equipment. This means that there is no
difference in signal to noise ratio regardless of where
the receiver output level control is set.
Any time gain is applied to the audio signal, noise
is also added. The best approach is to use as much
output on the receiver as possible with the least
amount of gain on the connected device. Following this
principle, it is generally best to use a line input on the
connected device to avoid additional gain that might be
applied to a microphone input.
is also added. The best approach is to use as much
output on the receiver as possible with the least
amount of gain on the connected device. Following this
principle, it is generally best to use a line input on the
connected device to avoid additional gain that might be
applied to a microphone input.
A tone generator is provided in the receiver to al-
low accurate input level adjustment of the connected
device. This steady tone is the same as the maximum
level that will appear at the outputs. The outputs can
be set between -35 dBu and +8 dBu, in 1 dB steps.
For example, if a channel is set at +0, the maximum
output that will appear at that output is +0 dBu when
the transmitter is driven to full modulation (the onset of
limiting).
low accurate input level adjustment of the connected
device. This steady tone is the same as the maximum
level that will appear at the outputs. The outputs can
be set between -35 dBu and +8 dBu, in 1 dB steps.
For example, if a channel is set at +0, the maximum
output that will appear at that output is +0 dBu when
the transmitter is driven to full modulation (the onset of
limiting).
The simple and accurate way to match the receiver
output with the input of the connected device is using
the following procedure.
output with the input of the connected device is using
the following procedure.
1) Turn the output of the DR receiver all the down (-35
but not OFF).
2) Turn the input of the connected device all the way
down, but not OFF.
3) Turn the tone on and gradually increase the output
level of the receiver while observing the input level
meter on the connected device. Increase the level
until the input level meter indicates full scale.
meter on the connected device. Increase the level
until the input level meter indicates full scale.
OVR
OVR
-20
0
-10
-20
0
-10
Input Level Meter on
Connected Device
Nominal level
If the receiver output is turned all the way up and the
nominal level on the input meter is not achieved, turn
the gain on the connected device input up gradually
until a full scale reading is indicated.
nominal level on the input meter is not achieved, turn
the gain on the connected device input up gradually
until a full scale reading is indicated.
NOTE: If the transmitter is driven hard into limiting,
up to 30 dB, the output level of the receiver will be a
few dB above this nominal level.
up to 30 dB, the output level of the receiver will be a
few dB above this nominal level.
Once the input level on the connected device is set,
turn the tone generator off in the menu. The generator
will turn off automatically when you return to the Main
Window.
turn the tone generator off in the menu. The generator
will turn off automatically when you return to the Main
Window.
When the receiver output and connected device input
are set up in this manner, there is no need to change
these settings from one event to another. As micro-
phones and microphone placement change, and with
different voices, the only adjustment needed is the
input gain on the transmitter.
are set up in this manner, there is no need to change
these settings from one event to another. As micro-
phones and microphone placement change, and with
different voices, the only adjustment needed is the
input gain on the transmitter.