CABLE-LOSS 12C dB/km 10 7.0 50 16.0 70 19.0 90 21.7 250 37.0 300 40.8 450 50.7 770 68.0 1340 92.6 1550 100.6 1770 108.6 1900 113.9 ALL RIGHT RESERVED DIGINET TOKYO ANTENNA CONSTRUCTION HIROSHI MITSUYA