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High Cut
bargraph. Most of the effect of disturbances is present in the
higher audio frequencies. Therefore, a means of reducing the effect of disturbances is to filter the
higher frequencies. This reduction of audio bandwidth is called “high cut”. The level of applied
High Cut
depends on the following input signals:
Signal Level
,
Multipath
,
Ultrasonic Noise
.
-2
-4
-6
-8
-10
-12
5000
10000
15000
20000
Response of the FM High Cut function for several reduction values
Soft Mute
bargraph (lower is better). If disturbances are present in the
received signal, the perceived effect can be reduced by attenuating the audio signal. This reduction
of audio volume is called “soft mute”.
Soft Mute
depends on the following input signals:
Signal
Level
,
Multipath
and
Ultrasonic Noise
.
Button assignments:
OK – Transition to
Main menu page
.
Left/Right – Changes
current frequency
.
Up/Down – Changes currently displayed bargraph group 1-4.
SB1-SB4 – Fast
Presets
.
