Problem : Hi! I am technician of BAF 61-0962 C-130B aircraft. Presently we are operating in MONUSCO, Dr Congo under United Nations. The weather radar of our aircraft is RDR-1F. I am having a problem with this type of weather radar. The problem is that a permanent noise found right side both the radar indicators(Pilot & Navigator side) all times & antenna one sweep weather available and another sweep weather missing when the aircraft goes in flight. The problem remain same even if we change range. Another problem is that when climbing weather not available both the radar indicators.