User's Manual

Screen Service SDT ARK 1 ECHO Operations
Jan, 2012 v 1.ATSC_FCC Page 3 - 57
It follows that:
Thr. FB Alarm > Thr. FB Down > Thr. FB Up.
The “FPGA Gain” value results from the comparison of the “Module” value with the
thresholds:
 0: when “Module” is lower than FB Up.
 1: when “Module is higher than FB Down.
 2: when “Module” is comprised between FB Up and FB Down.