Shure ULX-D User Manual page 38

Setting Gain
Adjust gain at the receiver so that the average signal levels are solid green and yellow with peaks that occasionally trigger the red overload LED. Attenuate
the gain if the signal overloads repeatedly.
Set the XLR output to line-level when possible to optimize sound system noise performance.
System Gain Control
The gain control on the receiver sets the audio signal level for the entire system. This allows adjustments to be made during a live performance. It is not
necessary to change the gain on the transmitter (mic offset) to optimize the gain structure. Any required changes to gain should be made from the receiver.
Adjusting Gain
ULXD4Q
Digital Wireless Receiver
IR
Press the ▲▼
gain
receiver to incrementally adjust gain from -18 to +42
Reading the Audio Meter
Audio peaks illuminate the LEDs for 1 second hold time. The RMS
signal is displayed in real time.
audio gain power
RF
(Overload) LED: Illuminates red when the internal limiter is
OL
A B
engaged, preventing digital clipping.
OL
OL
Receiver Output Level
The following table describes the typical total system gain from the audio input to the receiver outputs:
Output Jack
XLR (line setting)
XLR (mic setting)
*This setting matches a typical wired SM58 audio signal level.
RF
Transmitter RF Power
Reference the following table for setting RF Power:
RF Power Setting System Range
1 mW 33 m (100 ft.)
10 mW 100 m (330 ft.)
20 mW >100 m (330 ft.)
Note: Using the 20 mW setting decreases the transmitter battery runtime
and reduces the number of compatible systems.
audio gain
RF
AB
OL
audio gain power
control RF
A B
L
OL
OL
ENTER
EXIT
SCAN
push
buttons on the front of the
dB.
System Gain (gain control = 0dB)
+24 dB
-6 dB*
Application
For increased chan-
nel reuse at close
distances
Typical setups
For hostile RF environ-
ments or long-distance
applications
power
OL
Press and hold a
Mute
To mute the audio, use Shure Wireless Workbench
party control device.
Interference Detection
Interference Detection monitors the RF environment for potential sources of
interference which can cause audio dropouts.
When interference is identified, the RF LEDs illuminate red and the following
warning displays on the receiver LCD panel.
Large Gain Adjustments
audio gain
RF
A B
or
OL ULXD4
Digital Wireless Receiver
sync
Use the control wheel in
the
gain button
If the warning display persists or the audio
drops out repeatedly, perform a Scan and
Sync at the first opportunity to find a clear
frequency.
control
ENTER OL
EXIT
SCAN
push
menu
AUDIO
software or a third-
®
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