Cisco D9854 Installation And Operation Manual page 226

Setting up Muting Threshold Controls,
The Transport Restore is the upper limit for the transport C/N margin setting.
The transport will be muted when the C/N margin is below the Cutoff setting,
and un-muted (e.g., restored) when the C/N margin rises above the Restore
setting for a preset period of time. The adjustable operating range is from -2.0 to
20.0 dB. The default setting for Transport Restore is 0.1.
Note: Muting Control must be set to Enable for these settings to be active.
Transport Default C/N Margin Relationship
Transport
C/N Margin
4. The Audio Cutoff and Restore for both DVBS and DVBS2 Transport sets the
Audio channel Cutoff 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 Cutoff 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, and un-muted
(e.g., restored) when the C/N margin rises above the Restore setting for a preset
period of time. The adjustable operating range is from -2.0 to 20.0 dB. The
default setting for Audio Cutoff is 0.0.
5-62 Model D9854 Advanced Program Receiver Installation and Operation Guide
Continued
Transport Cutoff
0.0
Transport Restore
0.1
Transport Muted
Transport Restored
4021470 Rev D