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Radio frequencies for units with wireless LAN

The following information was correct at January 2002. You can obtain current information

from the appropriate authorities in your country (e.g. www.regtp.de).

Frequencies

Radio network cards and adapters are designed in accordance with IEEE-Standard 802.11b+g

for use in the ISM frequency band (Industrial, Scientiﬁc, Medical) between 2.4 and 2.4835

GHz. Because of the DSSS-procedure (Direct Sequence Spread Spectrum), each of the 11

usable radio channels takes up a width of 22 MHz; this means that up to three, independent

channels are available (e.g. 3, 8 and 11). The following table lists the authorised channels

in your country:

Channel MHz Europe, R&TTE France, R&TTE

1 2412 X

2 2417 X

3 2422 X

4 2427 X

5 2432 X

6 2437 X

7 2442 X

8 2447 X

9 2452 X

10 2457 X X

11 2462 X X

In addition, the integrated radio network card supports the standard 802.11a. For more in-

formation regarding 5 GHz band frequencies authorized in your country, please contact your

respective appropriate authority.

Introduction

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