Robotron Pty Ltd G5E Manuel D’Utilisation
WiNRADiO G3XX User’s Manual
While both the main panel Noise Squelch and the demodulator AF Squelch
act upon the same signal, their usage is slightly different: If the main panel
Noise Squelch is set, this also automatically sets the demodulator AF Squelch.
On the other hand, when the demodulator AF Squelch is set, this does not
automatically set the main panel Noise Squelch. This is because the main
panel squelch is also used for scanning purposes, while the demodulator AF
Squelch can only mute or un-mute the audio. So, it is possible for the scanning
to be controlled by the Level Squelch, but the audio muted by the
demodulator’s AF Squelch.
act upon the same signal, their usage is slightly different: If the main panel
Noise Squelch is set, this also automatically sets the demodulator AF Squelch.
On the other hand, when the demodulator AF Squelch is set, this does not
automatically set the main panel Noise Squelch. This is because the main
panel squelch is also used for scanning purposes, while the demodulator AF
Squelch can only mute or un-mute the audio. So, it is possible for the scanning
to be controlled by the Level Squelch, but the audio muted by the
demodulator’s AF Squelch.
Note that the noise level also depends on the IF bandwidth setting: The wider
this setting, the higher the noise level. A typical Noise Squelch value for
scanning of point to point communications is approximately 30-50%.
this setting, the higher the noise level. A typical Noise Squelch value for
scanning of point to point communications is approximately 30-50%.
Next to the squelch setting is the Squelch Defeat (Def) button. When
activated, the squelch action will be turned off (it is the same as if the squelch
was set to its lowest level, but more convenient). The red segment in the S-
meter will turn blue to indicate this condition.
activated, the squelch action will be turned off (it is the same as if the squelch
was set to its lowest level, but more convenient). The red segment in the S-
meter will turn blue to indicate this condition.
It is easy to forget that squelch is active. If the receiver doesn’t seem to be
operational (no sound from the speaker), check the squelch and mute settings
first.
operational (no sound from the speaker), check the squelch and mute settings
first.
Did you know?
Squelch can be also controlled by the signal contents. For example, the
CTCSS (Continuous Tone Coded Squelch System) is also supported by the
optional WiNRADiO Advanced Digital Suite (see www.winradio.com/ads).
CTCSS (Continuous Tone Coded Squelch System) is also supported by the
optional WiNRADiO Advanced Digital Suite (see www.winradio.com/ads).
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