Page Comparison

Anchor
A17.11.1 A17.11.1

Measurements results reported in the literature indicate that the presence of people across the propagation link between a transmitter and a receiver could cause additional loss (of up to 20 to 30dB), as a result of body loss or multi-path interference due to body scattering.

...

In ECC Report 131, the mean path loss is characterised by a dual-slope model with a break point at 5 m. In addition, the log-normal distributed shadowing with standard deviations of 3 dB and 4 dB is assumed in ECC Report 131 for separations of less than 5 metres m and greater than 5 metres m respectively.

Where the calculated path loss is less than free space attenuation for the same distance, the free space attenuation is used instead.