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Radio Record, Volume VII, Issue 9, 8 September 1933, Page 35

a "THE single aerial tower used for the broadeasts of the Vienna-Bisam-petg high-power station is, roughly, 430 feet high, weighs fifty tons, and actually rests on one porcelain insulator. The entire construction is painted red and white, and at night is illuminated in red as a warning to aircraft. A beacon with a flashing light, has been installed in its immediate vicinity as an additional safeguard, and the signal can be seen some twenty-four miles away. The aerial. tower is so constructed that if it is found necessary its height can be increased by another sixty-seven feet,