Frequency Attenuation (dB/100 ft)
1 MHz 0.17
10 MHz 0.45
50 MHz 0.89
100 MHz 1.21
200 MHz 1.68
400 MHz 2.37
700 MHz 3.27
900 MHz 3.77
1000 MHz 3.95
1200 MHz 4.46
1450 MHz 5.08
1800 MHz 5.58
2200 MHz 6.29
2500 MHz 6.79
3000 MHz 7.58