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9/20/17, 8*58 AM
Shure Publications | User Guides | ULX-D Dual and Quad Z16-20
Page 11 of 96
http://pubs.shure.com/guide/ULXD-DQ/en-US
the transmitter.
ɩ
RF
Diversity
LEDs
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.
ꋷ
RF Signal
Strength
LEDs
Indicate the RF signal strength from the
transmitter:
Amber = Normal (-90 to -70 dBm)
Red = Overload (greater than -25
dBm)
ꋸ
Audio
LEDs
Indicate average and peak audio levels:
LED
Audio Signal
Level
Description
Red (6)
-0.1 dBFS
Overload/
limiter
Yellow (5) -6 dBFS
Normal peaks
Yellow (4) -12 dBFS
Green (3) -20 dBFS
Signal Present
Green (2) -30 dBFS
Green (1) -40 dBFS
Note: In Frequency Diversity mode,
simultaneous blinking of the red and yellow
audio LEDs indicates that diversity audio has
been routed to this channel.
ꋹ
Gain
Buttons
Press the
̖
▼
gain buttons on the front
of the receiver to incrementally adjust
gain from -18 to +42 dB.