Man 3008 VOX Bedienungsanleitung Seite 40

6.5. Squelch control (SQ)
The MAN 3008 VOX features 3 different squelch systems:
• Automatic squelch (ASQ)
• Manual squelch
• Tone squelch (CTCSS)
All of them are masking the noise of the channel by muting the
speaker. Only when certain criterias are met, the squelch is
opening the speaker so the received signal can be heard.
6.5.1. Automatic Squelch (ASQ)
The ASQ is constantly checking the noise level on the channel.
Once a signal is received, the noise level reduces and the ASQ
opens.
Pressing the ASQ button activates or deactivates the ASQ
function. The current status is indicated by the ASQ symbol in
the display.
The ASQ can be adjusted in 3 levels, level 1 has the highest
sensitivity.
Advantage: highest sensitivity and thus highest communiction
range
Disadvantage: due to interferences e.g. sunspot activity,
electronic devices, etc., it may open without actually receiving
any signal. In this case either the manual or tone squelch will
work better.
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