Hi, Out of curiosity ... those fortunate owners of the KPA500 could take a look and let me know what output they produce when the input to the amp is exactly 5W Into a 1.3-1 SWR on 7250 I get right at 50 watts output for 5 watts input. My dummy load is on back order from MFJ or I could be more accurate! John KE4D K2 #7231 KPA500 #636