Installation
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Radio Frequency Interference Requirements
The Harmony 802.11a Access Point Models 8569 and 8570 operate in the frequency
range of 5.15 to 5.35 GHz; they are restricted to indoor use due to their operation in the
5.15 to 5.25 GHz frequency range. FCC 15.407(e) requires that these devices be used
indoors in the frequency range of 5.15 to 5.25 GHz to reduce the potential for harmful
interference to co-channel Mobile Satellite systems. Therefore the devices should be
used indoor only for channels 36, 40, 44 and 48 and when 2X mode is enabled,
channels 42 and 50. The Harmony 802.11a Access Point Model 8571 operates in the
frequency range of 5.25 to 5.35 GHz and is not subject to the above restriction.
Note:
High power radars are allocated as primary users of the 5.25 to 5.35 GHz and
5.65 to 5.85 GHz band. These radar stations can cause interference with
and/or damage the Harmony 802.11a Access Point (Models 8569, 8570, and
8571).
Industry Canada Guidelines
Models 8569 and 8570 have been designed to operate with antennas having a
maximum gain of 6 dBi. Model 8571 has been designed to operate with an antenna
having a maximum gain of 12 dBi. Antennas having higher gains are strictly
prohibited per regulations of Industry Canada. The required antenna impedance is
50 ohms. To reduce potential radio interference to other users, the antenna type and
its gain should be so chosen that the equivalent isotropically radiated power (EIRP) is
not more than that required for successful communication. The installer of this radio
equipment must ensure that the antennas are located or pointed such that they do
not emit RF field in excess of Health Canada limits for the general population; consult
Safety Code 6, obtainable from Health Canada’s website
http://www.hc-sc.gc.ca/rpb
.
