ERTOpen only on two frequencies on March 31

GREECE   ERTOpen only on two frequencies on March 31:
from 1830 on  9420*AVL 170 kW / 323 deg to WeEu Greek
from 1830 on  9935 AVL 100 kW / 285 deg to WeEu Greek is off
from 1830 on 15650 AVL 100 kW / 105 deg to SoAs Greek
*co-ch VIRI in Arabic