Automatic Squelch (Asq); Manual Squelch - Albrecht AE 6120 VOX Guide D'utilisation

Each suppresses the channel noise by muting the speaker.
Squelch only unmutes the speaker for the received signal to be
heard if certain criteria are met.

5.5.1. Automatic squelch (ASQ)

Automatic squelch continuously evaluates the noise level. If
a signal is received it decreases and the ASQ unmutes the
speaker.
To turn ASQ on, long press the SQ/ASQ button the AQ symbol
appears on the display.
Use the turning knob or UP/DN buttons to select the desired
ASQ level. Press SQ/ASQ again or wait 5 seconds to confirm
your selection.
ASQ has 9 configurable levels, with Level 1 being the most
sensitive.
Advantage: the highest sensitivity and thus the greatest range.
Disadvantage: can be disturbed by interferences such as
sunspot activity, other electronic devices, etc., so that the
speaker is activated even if no signal is received. In this case,
manual squelch or tone squelch should be used.

5.5.2. Manual squelch

The squelch suppress the channel noise. To set the manual
squelch, short press SQ/ASQ.
Use the turning knob or UP/DN buttons to select the desired
squelch level. Press SQ/ASQ again or wait 5 seconds to
confirm your selection.
The further you turn the control, the stronger a received signal
has to be to open the squelch. Usually, the squelch is set to just
barely mute the speaker.
The manual squelch can be set in 34 levels.
Advantage: Manual squelch can be set so that only close
range stations can be heard.
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