Shure ULX-D Manual page 10

Indicate antenna status:
◦ Blue = normal RF signal between the receiver and transmitter
◦ Red = interference detected
◦ Off = No RF connection between the receiver and transmitter
Note: the receiver will not output audio unless one blue LED is illuminated.
⑪ RF Signal Strength LEDs
Indicate the RF signal strength from the transmitter:
◦ Amber = Normal (-90 to -70 dBm)
◦ Red = Overload (greater than -25 dBm)
⑫ Audio LEDs
Indicate average and peak audio levels:
LED
Red (6)
Yellow (5)
Yellow (4)
Green (3)
Green (2)
Green (1)
Note: In Frequency Diversity mode, simultaneous blinking of the red and yellow audio LEDs indicates that diversity audio has been routed to this channel.
⑬ Gain Buttons
Press the ▲▼ gain buttons on the front of the receiver to incrementally adjust gain from -18 to +42 dB.
⑭ Power Switch
Powers the unit on or off.
Back Panel
① AC Power Input
IEC Connector, 100 - 240 V AC.
② RF Antenna Diversity Input Jack (2)
Audio Signal Level
-0.1 dBFS
-6 dBFS
-12 dBFS
-20 dBFS
-30 dBFS
-40 dBFS
Description
Overload/ limiter
Normal peaks
Signal Present
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