63
UK
MAXDATA Notebook Eco 4200X
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 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 us-
able 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