It's low speed data. Sounds almost like a Coaster Call base but could be a lot of things.
If you post the location where it was received maybe somebody can identify it. If it's in the US 467.2125 is a Industrial/Business Pool frequency. You can look up the frequency in the FCC ULS and see if there are any licensees in the area where it was received.
С начало в виде тонального звука короткого эта идёт преамбула для синхронизации передатчика и приёмника потом похоже ШИМ сигнал передаёт какую то информацию в режиме сравнения захвата ШИМ.
With assistance from Google Translate, MechanicVV replied:
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At first, in the form of a short tonal sound, this is a preamble for synchronizing the transmitter and receiver, then it seems that the PWM signal transmits some information in the PWM capture comparison mode.