ZEVS (transmitter)

ZEVS is a facility of the Russian Navy to transmit messages to submerged submarines in deep water using extremely low frequency (ELF) waves.

Due to its extreme low frequency, the techniques used by ZEVS are quite different from those of standard transmitters.

This is simply an arrangement of two widely separated electrodes, through which the transmission current is fed into the ground.

As ZEVS is a location of high strategic importance, nearly no official information of the facility is available.

These Kolenergo substations are designed for transmission ratings of 7.478 MVA and 7.446 MVA respectively, so the total transmission power of ZEVS transmitter may be between 10 MW and 14 MW, making it the most powerful transmitter in Europe.