User's Guide

PTP 250 User Guide Compliance with safety standards
phn-2182_003v004 (Oct 2011)
UNDER DEVELOPMENT
4-11
Table 4-13 Power compliance margins
Band Antenna Tx Burst
(W)
P (W) G S
(W/m
2
)
d (m) R (m)
5.4 GHz Integrated 0.0050 0.0050 200 10 0.089 1
Max gain
connectorized
0.0025 0.0025 398 10 0.089 1
ETSI
5.8 GHz
Integrated 0.0200 0.0200 200 10 0.178 1
Max gain
connectorized
0.0025 0.0025 1585 10 0.178 1
FCC
5.8 GHz
Integrated
(*1)
0.34 0.34 141 10 0.62 2
Max gain
connectorized
(*1)
0.34 0.34 3630 10 3.13 5
(*1) The figures for these antennas include cable losses.
Gain of antenna in dBi = 10*log(G).
The regulations require that the power used for the calculations is the maximum power in
the transmit burst subject to allowance for source-based time-averaging.
At 5.4 GHz and EU 5.8 GHz, the products are generally limited to a fixed EIRP which can
be achieved with the Integrated Antenna. The calculations above assume that the
maximum EIRP allowed by the regulations is being transmitted.
If there are no EIRP limits in the country of deployment, use the distance calculations for
FCC 5.8 GHz for all frequency bands.
At FCC 5.8 GHz, for antennas between 0.6m (2ft) and 1.8m (6ft), alter the distance
proportionally to the antenna gain.