4023074 Rev B Model D9858 Advanced Receiver Transcoder Installation and Operation Guide 4-77
Setup Menu: Noise Cutoff
Structure
To view the Noise Cutoff menu from the Main menu, press the RIGHT arrow key
once and then the SELECT key to reach the Setup menu. Then press the RIGHT
arrow key seven times and the SELECT key to view the Noise Cutoffs menu.
The Noise Cutoff menu allows you to set the muting thresholds for both audio and
video in the event of a noisy signal. This menu has the following structure:
Trnsprt (PV BER)
Description: This sets how the transcoder reacts when the signal quality is
severely degraded when using DVB-S modulation. This allows you
to set the transport (BER) values for the transcoder. The transcoder
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.
Parameters: Cutoff - This is the upper limit for the transport BER setting. The
transport will be muted when the BER is above the Cutoff setting,
and un-muted (e.g., restored) when the BER falls below the Restore
setting for a preset period of time. The adjustable operating range is
from 1.0e-9 (1.0x10-9) to 9.99e-1. The default setting for Transport
(PV BER) Cutoff is 1.00e-2.
Restore - This is the lower limit for the transport BER setting. The
transport will be muted when the BER is above the Cutoff setting,
and un-muted (e.g., restored) when the BER falls below the Restore
setting for a preset period of time. The adjustable operating range is
from 1.0e-9 (1.0x10-9) to 9.99e-1. The default setting for Transport
(PV BER) Restore is 7.50e-3.
Noise Cutoff
Restore Defaults Muting Control
[Yes] [Disable]
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Audio(LDPC BER) Cutoff Restore
[ 1.50e-1] 3.00e-2]
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Trnsprt(LDPC BER) Cutoff Restore
[ 1.50e-1] 3.00e-2]
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Audio(PV BER) Cutoff Restore
[ 1.50e-1] 3.00e-2]
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Trnsprt(PV BER) Cutoff Restore
[ 1.50e-1] 3.00e-2]
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