Why "the pip" named S30

Those scanning the low HF bands are familiar with the "piping" sound found on 3757 kHz. The "pip" also transmits on 5448 kHz during the day. Most of the time it pips continuously, exactly as its cousin, the "Buzzer" (S28 or formally UBV76), buzzes, but sometimes it sends a message. Today, on 5448 USB, 1520z a YL sent one in Russian. Listen!

Update 4/3/2007:

Mike provided a translation to Enigma2000 Group:

And a translation of what you heard!

(pip-pip)
For 080: 037 918 380 013 692 885 334 894 140
For 080: 037 918 380 013 692 885 334 894 140
How do you copy? How do you copy?
(pause)
For 080: 037 918 380 013 692 885 334 894 140
For 080: 037 918 380 013 692 885 334 894 140
How do you copy? How do you copy? Over
(pip-pip)

Which is very similar to the XSW (S32) text I heard some time ago!

Thanks Mike!