User's Manual

Screen Service SDT ARK 1 ECHO Operations
Jan, 2012 v 1.ATSC_FCC Page 3 - 61
General
Out Echo
Residual [dB]
Indicates the value of the Echo amplitude that was
not compensated.
General
Input Echo [dB]
Indicates the value of the Echo amplitude that was
compensated.
General
Import…
Imports the “.echf” file that contains the channel
filter coefficients.
R
General
Coeff.0
Shows the same value as “fdback val” indicator.
Introduced for debug purposes.
R
General
Module
Shows the peak value of the module of the current
filter‟s coefficients.
 Min: -
214748364
8
 Max:
214748364
7
General
Threshold Fold
Back Alarm
Specifies the peak value of the module of the
current filter‟s coefficients. to be considered as
alarm level. The output RF power shall always be
lower than this threshold.
 Min: -
214748364
8
 Max:
214748364
7
R
General
Threshold Fold
Back Down
Specifies the peak value of the module of the
current filter‟s coefficients. to be considered as
higher level of the optimal range. The optimal
range is determined by the “Threshold Fold Back
Down” and “Threshold Fold Back Up” values.
 Min: -
214748364
8
 Max:
214748364
7
R