CABLE-LOSS 8C dB/km 10 9.1 50 19.0 70 25.1 90 28.7 250 50.2 300 56.0 450 70.1 770 96.0 1340 134.3 1550 147.0 1770 159.8 1900 167.2 ALL RIGHT RESERVED DIGINET TOKYO ANTENNA CONSTRUCTION HIROSHI MITSUYA