Shure ULX-D User Manual page 10

Setting Receiver Gain
The receiver gain control sets the audio signal level for the entire receiver and transmitter system. Changes to the gain settings occur in realtime allowing for
adjustments during live performances. When adjusting the gain, monitor the audio meter levels to prevent signal overloads.
Receiver Gain Controls
The gain can be adjusted by using the gain▲▼ buttons or by entering the
AUDIO menu and using the control wheel.
Tip: To quickly adjust the gain, press and hold a gain button to enable accelerated scrolling.
audio gain
RF
A B
OL
ULXD4
OL
Digital Wireless Receiver
sync
Muting a Receiver Channel Audio Output
The audio output of each receiver channel can be independently muted
to prevent audio from passing. Mute status is indicated by Rx MUTED
message appearing on the receiver display in place of the gain value.
Note: Receiver gain is disabled for muted channels to prevent unexpected changes in audio
levels.
To set a receiver channel output to mute:
1. AUDIO > MUTE
2. Use the control wheel to select ON or OFF.
3. Press ENTER to save.
To unmute the receiver output:
Simultaneously press the ▲▼ buttons or select OFF from the MUTE menu
option.
Tip: Audio mute can be enabled remotely from Wireless Workbench or from an external controller.
Important! A power cycle will reset the receiver and unmute the audio output.
Editing Receiver Channel Name
To edit a receiver channel name, choose EDIT NAME from the menu.
• Turn the control wheel to edit a highlighted character
• Press the control wheel to advance to the next character
• Press ENTER to save changes
Note: The channel name is transferred to a transmitter during a sync.
10
Reading the Audio Meter
The audio meter displays yellow, green, and red LEDs to indicate
the audio signal level. Audio peaks illuminate the LEDs for 2
seconds, while the RMS signal is displayed in realtime.
When setting up the receiver, adjust the gain so that the average
ULXD4Q
signal LED levels are solid green and occasionally yellow, with only
Digital Wireless Receiver
the highest peaks causing the red LED to illuminate.
control
Tip: If a vocalist is overloading a bodypack transmitter, try lowing the receiver gain. If
OL
ENTER
additional attenuation is needed, use the transmitter menu to set the INPUT PAD to -12dB.
EXIT
Note: Illumination of the red OL (overload) LED indicates the internal limiter is engaged to
SCAN
push
prevent digital clipping.
Transmitter Input Clip
The following warning displays on the receiver LCD panel when the transmitter
input is clipped:
To correct, attenuate the signal source.
If the source cannot be attenuated while
using a bodypack transmitter, select
INPUT PAD from the main menu to
attenuate the input signal 12 dB.
Receiver Output Level
The following table describes the typical total system gain from the audio input to
the receiver outputs:
Receiver Output Gain
Output Jack
XLR (line setting)
XLR (mic setting)
*This setting matches a typical wired SM58 audio signal level.
IR
System Gain (gain control = 0dB)
+24 dB
-6 dB*
audio
control RF
A B
OL
ENTER
EXIT
SCAN
push
Tx OVERLOAD
gain
OL