Barco ClickShare Bedienungsanleitung PDF herunterladen (Seite 7)

Wi-Fi and Security Considerations for ClickShare

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capabilities in order to avoid interference with weather-radar

and military applications. In 2010, the FCC further specified

the use of channels in the 5.470–5.725 GHz band to avoid

interference with Terminal Doppler Weather Radar (TDWR)

systems. This eliminated the use of channels 120, 124, and

128. Channels 116 and 132 may be used, as long as they are

separated by more than 30 MHz (center-to-center) from a

TDWR located within 35 km of the device.

Germany requires dynamic frequency selection (DFS) and

transmit power control (TPC) capabilities on 5.250–5.350 GHz

and 5.470–5.725 GHz as well. In addition, the 5.150–

5.250 GHz frequency range is allowed for indoor use only. As

this is the German implementation of EU

Directive2005/513/EC, similar regulations must be expected

throughout the European Union.

Austria adopted Directive 2005/513/EC directly into national

law.

South Africa copied the European regulations.

Japan allows channels 34, 38, 42, and 46 for connecting old

APs supported by J52.

The following table gives an overview (valid at the time this

document was being written) of the channels that are

supported in at least one of ClickShare’s target regions:

Channel Frequency

(MHz)

NA EU CN JP

184 4920

188 4940

192 4960

196 4980

36 5180

40 5200

44 5220

48 5240

149 5745

153 5765

157 5785

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Barco ClickShare Bedienungsanleitung Seite 7