L3Harris XL Extreme Series Operator's Manual page 127

5. Under OPTIONS  Audio Settings  PTT Options, check PTT and select Accessory
Only.
6. (Optional) Configure Automatic Level Control (ALC). Enabling ALC uses proprietary L3Harris
algorithms to adjust and level audio to compensate for users who speak loudly or speak softly
to be heard at nearly the same level.
Requires RPM2 R6A or later and XLP R6A or later. Consult with your L3Harris
radio technician before adjusting any of these settings.
NOTE
a. Select OPTIONS  Audio Settings  Bluetooth Microphone.
b. Check (enable) ALC.
c. Set ALC Max Gain to desired level (Default = 6 dB; Range = 0 dB to +12 dB in 1 dB
increments). This setting allows the user to set the maximum gain applied by the ALC
feature for transmitted voice. Higher gain settings increase the chance for acoustic
feedback.
d. Set Mic Gain to desired level (Default = 16 dB; Range = -16 dB to +16 dB in 1 dB
increments). This setting allows the user to set the Mic Gain for the Bluetooth External
Microphone (baseline before ALC).
7. Select OPTIONS  Bluetooth Settings and check Bluetooth Enabled. Ensure MITM
Protection Required is unchecked.
8. Program a radio button or switch for Bluetooth Enable/Disable:
a. Select OPTIONS  Portable Programmable Buttons or Programmable Switches.
b. Select Bluetooth Enable/Disable from the drop-down of the desired button/switch.
9. Write the personality to the radio.
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