4
Typical calculated high frequency (2-30 MHz)
attenuations for simple power line
geometries
are < 0.5 dB/km.
Measured attenuations in 2 – 30 MHz
range
are very frequency dependent and
suggest
attenuation rates of 10 - 40 dB/km.
These
are significantly higher than those
calculated.
The reason for this will discussed
next.
Attenuation