Topband: Unknown Pulse Signal Wiping out 1900-1925 kHz

[Mike Waters]

>From SW Missouri, heard on my 580' NE Beverage, pulses to S7 (preamp off),
1130 UTC (5:30 CST).
I can hear it from 1.900 to 1.930 on the IC-765's 2.4 kHz LSB filter.
Switching to AM on 1.915 (over S9), the signal has a rough pulsing tone,
but I didn't try to measure the tone's frequency.

@ 1145 UTC, pulses to S4-S6

Any educated guesses yet about its general geographical location?

73, Mike
www.w0btu.com