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Wi-Fi and Security Considerations for ClickShare

Page 2 of 14

The right choice of frequencies and channels in larger scale Wi-

Fi deployments requires thorough knowledge of RF (radio

frequency) and Wi-Fi technology and appropriate tools like

spectrum analyzers. However, a thorough treatment of that

subject is beyond the scope of this white paper. In this paper,

we provide some hints and tips that can be of help in smaller

scale and non-critical installations. In all other cases, we

strongly recommend that ClickShare be installed by

professional integrators with thorough knowledge of RF and

Wi-Fi technology.

•

As the 2.4 GHz frequency band is usually already very

crowded, and since ClickShare has 5 GHz capabilities, we

recommend using the 5 GHz frequency band

•

To choose an appropriate channel within the chosen

frequency band (and among the allowed channels for the

country concerned), we recommend using a Wi-Fi channel

visualization tool like the freely available InSSIDer tool

from MetaGeek, which is available on Windows and Mac

OS/X platforms. This tool shows which channels are

already occupied and which are not. Choose a channel

that is still free (or that has weak signals from other APs).

•

For each frequency band, ClickShare follows the country

regulations in the channels offered. Every ClickShare Base

Unit is factory set for a specific geographical region. Based

on that setting, the administration interface offers only

the legally allowed channels. Once the Base Unit has left

the factory, the factory set region code cannot be

changed. It is also not allowed to install a ClickShare Base

Unit outside the region for which it is intended. This

intended region is indicated in the article number at the

bottom of the Base Unit: EU for Europe, NA for US and

Canada, CN for China, JP for Japan. No such restrictions

apply to the ClickShare Buttons.

•

ClickShare does not automatically hop to other channels

when there are changes in the RF environment. Therefore,

we advise a regular check in environments where changes

to Wi-Fi and other RF equipment are frequent.

•

In most cases, your company’s IT department will have a

clear overview of the frequencies in use for different

applications in different areas of the company. So, it is

highly recommended to involve the IT department in your

Wi-Fi deployment.

CONSIDERATIONS

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