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Shure Incorporated
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During storage, check batteries every 6 months and recharge to 40% of capacity as needed
Low Battery Alert
The receiver display can be configured to flash when the battery runtime for a transmitter is less than 30 minutes.
The alert displays the following information based on the type of batteries installed in the transmitter:
SB900 Battery: The receiver screen flashes, the low battery icon is displayed, and the remaining battery runtime is shown
AA Batteries: The receiver screen flashes and the low battery icon is displayed
Press
menu
while holding the
enter
button to access the advanced menu.
Use the arrow buttons to navigate to the
Alert
screen.
Select
On
or
Off
to enable or disable the alert function.
Press the
enter
button to save.
Receiver Gain Adjustment
The gain control sets the overall signal level for the system. The default gain level is 12 dB and the available gain range is -18
to 42 dB, in 1 dB increments.
Set the gain to a level where the
audio
LED appears green or yellow, with only the highest audio peaks causing the LED to oc
casionally turn red and engage the limiter. Reduce the gain if there is audible distortion of the audio.
From the receiver home screen, use the arrow buttons to increase or decrease the gain:
A single button press adjusts the gain in 1 dB increments
Press and hold the button for larger adjustments
Test the transmitter at performance levels when adjusting the gain. Monitor the
audio
meter and the
audio
LED to prevent over
loads.
Audio Signal Encryption
The QLXD receiver features Advanced Encryption Standard (AES256) to protect the audio signal. When encryption is en
abled, the receiver generates a unique encryption key which is shared with a the transmitter during an IR sync. Transmitters