UVB-76 on a new frequency?

This afternoon, when scanning (as usual) for Middle East activity which take action in the 5-12 MHz, I received a very familiar sound on 6.998 kHz.
That's right, it's "The Buzzer", or "UVB-76" or "MDZhB".
A quick check on Utility DX Forum confirmed that the sound belongs to The Buzzer and, most important, I am not the only one who received it!
As the tensions in the Middle East escalates, maybe it is useful to monitor the frequency as it is associated with a military network in the former USSR, now CIS/Russia.
I recommend to use a very sharp 2 kHz filter because the frequency is just near the 40m Amateur radio band so it is probable to hear some CW from above.

This is the "Original" UVB-76":

 

The "New" UVB-76:

 

Strange Frequency Hopping

I reached my second location, outside the noise of the city.
Here, my SDR works beautifull and revealed me a whole new world of signals!
I saw a strange frequency hopping signal. On both, vertical and horizontal antennas the signal is strong suggesting it came from CIS because the signals from West Europe are stronger on the horizontal antenna than the vertical at this hour.

So, here are the pictures:

Does anyone have ideea about what is this?

SWL REPORT

Well, from time to time i like to take a swap to entire HF range to see what is new.
The reporting system used is:
Frequency <> MODE<> Quality<>Signal Strenght<> Observation
This evening, at 21:00 LT, 18:00 UTC:

5.403,5 kHz USB 2-3 S4-S7 QRM  G3WGG
5.372 kHz CW 5 S8-S9                 GM4KGK DE G4LNA 
5.380 kHz USB 5 S9 QSB             Swedish hams but unidentified. No phonetic alphabet heard but some "QSL, QSL"...
6.530 - 6.560 kHz LSB 5 S5-9      Some Italian pirates
8.744 kHz USB 4 S1                     Bangkok Maritime service with weather bulletin (automatic voice)
8.819 kHz USB 5 S9+20               Taskent Meteo (VOLMET) with meteo (clearly the lady was reading)
9.280 kHz AM 5 S9+20                Egypt Radio - someone pluged the connector from the transmitter because there was only hum there.
10.000 kHz, USB 5 S7 QSB           ITALCABLE musical hour signal.
10.450 - 1070 USB                         same Russian pirates...

12.842 kHz CW 5 S8 QSB              CQ de HLO, Korean Maritime Beacon