"Al Arduengo" wrote in message
. ..
I can't even describe what I am hearing. It is rhythmic in nature. I
am located in North Texas (Allen). Using E1 off the whip. LSB. Can
anyone help?

23:35 UTC here on Pacific coast. No signal heard 8240 but there
are several other places across the bands where there is a steady
(and bothersome) chuff-chuff-chuff going on. VE7AFN.