for 10 straight hours in the Contest the FLEX 6500 performed like a champ. At rates of 15 contacts per minute at the max the PA temp only got to 137 degrees F. The N1MM software worked like a champ. The WWV was OK not great but workable. Still missing WV on JT9 Any WV station want a schedule? hi hi ... The Flex 6500 is the Good for contesting! station condition was Win 10 , SmartSDR 1.10.16 and N1MM logger contester software.