Chris, I am hearing 5 different letters there this afternoon, L M N O P. The spacing seems to be anywhere from 25 secs to about 40-45 secs. Hard to nail down as QSB with weak to fair signal strength varies over the course of the cycle of the 5 letters.
That's what I have been hearing here this afternoon when I have had a chance to listen. Hope that helps. Hopefully prop will get better over the next month or two.
73, Mark
Northern UT (NUT)