Wilan VIP 110-24, Руководство оператора

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VIP 110-24 Operator’s Manual (rev E)
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5.3.4 Output Power Limits (FCC)
The Federal Communications Commission (FCC) regulations limit the maximum Effective Isotropic
Radiated Power (EIRP) for spread spectrum systems operating in the 2.4 GHz band. Close to the band
edges, the output power must be limited to avoid spilling over into the FCC protected band from
2.4835 GHz to 2.500 GHz. The table below takes these considerations into account and shows the
maximum allowed output power for the various antennas
Maximum Output Power (dBm)
Channel Frequency Antenna Gain
(MHz) 9 dBi 17 dBi 24 dBi
5 2410.0 23 22 21
6 2412.0 23 23 22
7 2414.0 23 23 22
8 2416.0 23 23 22
9 2418.0 23 23 22
10 to 30 23 23 23
31 2462.0 23 22 22
32 2464.0 23 20 19
33 2466.0 21 18 17
34 2468.0 20 17 16
35 2470.0 20 17 15
5.3.5 Output Power Limits (CE)
The European Telecommunications Standards Institute (ETSI) regulations impose a limit of 20 dBm
as the maximum Effective Isotropic Radiated Power (EIRP) for direct sequence spread spectrum
systems operating in the 2.4 GHz band. The installer must reduce the output power of the
VIP 110-24
so that this limit is not exceeded. The antenna gain, cable and connector losses must be taken into
account when computing the maximum output power.
5.3.6 Maximum Permissible Exposure (MPE) Limitations
The installer must mount all transmit antennas so as to comply with the limits for human exposure to
radio frequency (RF) fields per paragraph 1.1307 of the FCC Regulations . The FCC requirements
incorporate limits for Maximum Permissible Exposure (MPE) in terms of electric field strength,
magnetic field strength, and power density.
Antenna installations must be engineered so that MPE is limited to 1 mW/cm
2
, the more stringent
limit for "uncontrolled environments". The table below specifies the minimum distance that must be
maintained between the antenna and any areas where persons may have access, including rooftop