Barco ClickShare Uživatelský manuál stáhnout pdf (Strana 6)

Wi-Fi and Security Considerations for ClickShare

Page 6 of 14

principle. For more complete information, please refer to the

appropriate IEEE standards and local regulations.

Channels in the 2.4GHz frequency band

Channel Frequency

(MHz)

NA JP EU CN

1 2412

2 2417

3 2422

4 2427

5 2432

6 2437

7 2442

8 2447

9 2452

10 2457

11 2462

12 2467

13 2472

With 802.11g and newer standards, only channels 1, 5, 9, and

13 shall be used in order to obey the non-overlapping 20MHz

OFDM channel scheme borrowed from 802.11a. But please

survey the site first, and then if channel 6 is already heavily

occupied, follow the 3-channel system.

Note that channels 12 and 13 are available in the US under

low power conditions. However, since ClickShare’s built-in AP

does not support power adjustment, these two channels are

blocked for US-designated Base Units.

Channels in the 5GHz frequency band

The picture for the 5GHz frequency band is more complex than

that of the 2.4GHz band.

The United States requires that devices operating on 5.250–

5.350 GHz and 5.470–5.725 GHz must employ dynamic

frequency selection (DFS) and transmit power control (TPC)

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Barco ClickShare Uživatelský manuál Strana 6