[Spooks] Russian military channel markers #Numbers

[Ary Boender]

The whole bunch is alive and kicking:

4020   17-02-2017 1647 S4020  USB    Air-horn channel marker
4625   17-02-2017 1644 S28    USB      Buzzer channel marker //6330 kHz
(mirror)
6330   17-02-2017 1644 S28    USB      Buzzer channel marker mirror //4625
kHz
5292   17-02-2017 1649 S5292  USB   Channel marker D
3756   17-12-2017 1650 S30    USB     Pip channel marker
3828   17-12-2017 1651 S32    USB     Squeaky Wheel channel marker

Ary