Bandwidth of 0.02 to 0.8 MHz Inter-pulse period of 90ms Frequency range of 7 to 19 HZ 10Hz default transmission, 16Hz and 20Hz were rare Typical transmission time of 400s The Russian woodpecker - дуга ////////////////////////////////////////////////////////////////////////////////////////////////////// And so the Russian woodpecker sang the signal was broadcast with such power that it could be heard across the world Many feared it was a form of Russian mind control But of course we were no strangers to that Soon radios and TVs had screens to filter it out The early warning system for ballistic missiles at дуга But the dreadful irony wasn't apparent to the public Tuning out their mind control in place of our own And so the woodpecker sang... \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ Art film cut with archive footage.