Problem : Hi! I am technician of BAF 61-0962 C-130B aircraft. Presently we are operating in MONUSCO, Dr Congo under United Nations. The TCAS system of our aircraft is CAS - 81.I am having a problem with this type of TCAS system. The problem is that TCAS shows opposite traffic its original position. In details, the position of the intruder is left of own aircraft but TA/VSI shows right and the position of the intruder is right of own aircraft but TA/VSI shows left.