###########################
# Return redundant DST-Rx
# 0 = unknown
# 1 = DST-Rx 1
# 2 = DST-Rx 2
#
# Find backup antenna
VAR_currAntB := NTTSX006;
#
# Find which DST it is
VAR_currDstRed := 0;
if (NTTSX001 == VAR_currAntB) then
	VAR_currDstRed := 1;
else
	if (NTTSX003 == VAR_currAntB) then
		VAR_currDstRed := 2;
	endif;
endif;
#
return (VAR_currDstRed);