User's Manual

Screen Service SDT ARK 1 ECHO Operations
Jan, 2012 v 1.ATSC_FCC Page 3 - 59
Box
Parameter /
Control
Description
Admitted Ranges /
Values
R/H/E
General
Echo Correction
Started/Stopped
Enables or disables the updating of the
coefficients. When in “Echo Correction Started”
mode, the system continues calculating the
coefficients, but those are not updated.
 Red: Echo
Correction
Stopped
 Green:
Echo
Correction
Started.
R
General
System
Running/Locked
Indicates the running status of the echo canceling
process.
General
Clear Coeff.
Resets the complex filter coefficients
General
Foldback
ON/OFF
Enables or disables the Foldback mode.
 Fold Back
ON
 Fold Back
OFF
General
Fdback val
Indicates whether the Foldback mode is active („1‟
is shown) or not („0‟ is shown).
 0: Fold-
back not
active.
 1: Fold-
back active
General
Ver.
Indicates an error code associated with the cause
that determined the correction action tha was
taken. Introduced for debug purposes.
General
Peak Out
Indicates the peak of the module of the signal at
the output of the Channel Filter.
General
Watch Dog
Indicates the value of the counter, incremented at
each Echo control loop iteration. Introduced for
debug purposes.
General
COE Updated
Indicates the value of the counter, incremented
each time the coefficients are updated. Introduced
for debug purposes.