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PTP 250 User Guide
Table 4-13 Power compliance margins
Band
Antenna
5.4 GHz
Integrated
Max gain
connectorized
ETSI
Integrated
5.8 GHz
Max gain
connectorized
FCC
Integrated
5.8 GHz
(*1)
Max gain
connectorized
(*1)
(*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.
phn-2182_003v004 (Oct 2011)
Tx Burst
P (W)
(W)
0.0050
0.0050
0.0025
0.0025
0.0200
0.0200
0.0025
0.0025
0.34
0.34
0.34
0.34
UNDER DEVELOPMENT
Compliance with safety standards
G
S
d (m)
2
(W/m
)
200
10
0.089
398
10
0.089
200
10
0.178
1585
10
0.178
141
10
0.62
3630
10
3.13
R (m)
1
1
1
1
2
5
4-11
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