I caught MO8a 8135Khz starting at 2300utc (CW Transmission)
At 2301Utc RNGAA was sent 4times followed with BT then followed
cut numbers in five letter groups....
Transmission stopped at 2327Utc with AR AR SK
There was a slight hum on the cw note...
RST 598 actually s9 signal strength on my R4B 40 meter end fed wire.
73 to the spy dudes