2004 S9 +10
thank you for the report even though i monitored myself on an online SDR, that was a 3 minute test at 2003 to 2006 at 1KW from the usual 50W.
finally calibrated the amp for 6100Khz from 5010Khz, perhaps i will settle at 6100Khz, we shall see though i got suspicions 6100Khz likely wont be a good place for nighttime weekend broadcasts.
the amp is a Henry 3K-A modified for improved ventilation.