Automatic Squelch (Asq); Ctcss/Dcs Tone Squelch - Albrecht AE 6199 NRC Bedienungsanleitung

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, turn the ASQ knob all
the way to the left. The current status
is indicated by the AQ symbol on the
display.
ASQ has 3 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. CTCSS/DCS tone squelch

In addition to manual and automatic
squelch, the AE 6199 NRC radio also
supports CTCSS/DCS tones. CTCSS/
DCS adds an inaudible tone to the
transmission. Once activated, the
squelch opens only if a signal with the
same tone is received from a remote
station. CTCSS can be set separately
for each channel and is only available
in FM.
The active CTCSS/DCS function is indicated by the TQ symbol
on the display.
• Select a channel with the channel selector
• Press the CTS button (once for CTCSS, twice for DCS)
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