# Station Loop 
for ($i=0;$i<=$#data;$i++) { 

# check if value is available else set flag 9

if ($channel[$i][$value_index] eq '')
 {$QV[$i]=9}

# Range Check 
if ($N <= 300) {$MIN_TOL=2.5; $MAX_TOL=45.5};

# Flagging
if ($channel[$i][$value_index] < $MIN_TOL || $channel[$i][$value_index] > $MAX_TOL ) { $QV[$i]=4 } else {$QV[$i]=2} }

###"Stuck Value Test"???


}

}