Still running WSPR-2 100 % now for 4 hours , from 1600 to 1800 Z had aprox 50 decodes from AC0ZL ( Claude ) 515 miles , and he is using an indoor loop. I'm a newbie here on this low band , but that's amazing to me. Temp inside the box is 120 deg F and stabilized that's about 45 deg above room temp. Thanks for monitoring Ken K5DNL / WG2XXM