Cisco D9865 Installation And Configuration Manual page 118

Setting Up Dish Pointing
Figure 5-1
Transport
C/N Margin
Step 4 The Audio Mute and Restore for both DVB-S C/N Margin and DVB-S2 C/N Margin sets the Audio
channel Mute and Restore C/N margin values (limits) to mute audio when the signal quality is severely
degraded when using DVB-S or DVB-S2 modulation.
The Audio Mute is the lower limit for the audio C/N margin setting. Audio will be muted when the C/N
margin is below the Cutoff setting for a nominal delay of 4 seconds. The delay is between the time the
condition is first detected and the time the transport is muted. The adjustable operating range is from
-5.0 to 20.0 dB. The default setting for Audio Mute is 0.0.
The Audio Restore is the upper limit for the audio C/N margin setting. Audio will be un-muted (e.g.,
restored) when the C/N margin rises above the Restore setting for a nominal delay of 8 seconds. The
delay is between the time the condition is first detected and the time the transport is restored. The
adjustable operating range is from -5.0 to 20.0 dB. The default setting for Audio Restore is 0.1.
Figure 5-2
Audio
C/N Margin
Click Apply. If you want to restore the transport stream and audio C/N margin options to their factory
Step 5
set (default) values, click Reset Defaults.
Cisco D9865 Satellite Receiver Software Version 2.20 Installation and Configuration Guide
5-16
Transport Default C/N Margin Relationship
Transport Mute
0.0
Transport Restore
0.1
Audio Default C/N Margin Relationship
Audio Mute
0.0
Audio Restore
0.1
Chapter 5 Setup and Monitoring via Web GUI
Transport Muted
Transport Restored
Audio Muted
Audio Restored
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