Cisco Systems 4028650000000 installation and operation guide Setting up Muting Threshold Controls

Setting up Muting Threshold Controls

To Set Up the Muting Threshold Controls

Proceed as follows to set up the muting threshold controls:

1.From the user interface of the D9865, click Input > Satellite, expand Tuning Setup and then click Muting Thresholds. The Muting Thresholds page is displayed.

2.Select Enable Threshold Muting to mute the transport stream and audio in the event of an unstable signal, poor signal, or no signal condition. The default is selected.

3.The Transport Mute and Restore for both DVB-S C/N Margin and DVB-S2 C/ N Margin sets how the receiver reacts when the signal quality is severely degraded when using DVB-S or DVB-S2 modulation. This allows you to set the transport C/N margin values for the receiver. The receiver uses these noise values/settings as limits during normal operation to determine whether to mute the transport in the event of a noisy signal, poor signal or no signal condition.

The Transport Mute is the lower limit for the transport C/N margin setting. The transport will be muted when the C/N margin is below the mute setting for a nominal delay of 1 second. 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 Transport Mute is 0.0.

5-18 D9865 Satellite Receiver Installation and Operation Guide 4035197 Rev C