Chaos on 6712 kHz (HFDL basic freq)

A couple of days ago I was monitoring 6712 kHz.
The frequency is listed for Reykjavik Ground station, but on the air was Krasnodarsk Ground station.
As was not enough strange, on the same frequency a lady was dictating numbers... No, it was not a "Numbers station" in the classic mean. It sounds more like a network controller...
At the top, was a Jamming signal...

After a few minutes, the lady ceased transmission and Reykjavik GS was back on the air!!!

Very strange!

Here is a record.

Air traffic on 5655kHz

This evening, as usually, I was monitoring 5655kHz for some air traffic.
And there it was!
I was able to receive and decode HFDL from HAT-Yai Airport from Thailanda.
What was very unusual was that, on the same frequency, I was able to hear some USB Phone operations.
Anyway, It was impressive that the signal was very clear and noiseless!