IBM 19K4543 manual Supported frequesncy sub-bands, Channel ID, Etsi

1In an open office environment, antennas can "see" each other. There are no physical obstructions between them.

2In a semi-open office environment, work space is divided by shoulder-height, hollow wall elements. Antennas are at desktop level.

3In a closed office environment, work space is separated by floor-to-ceiling brick walls.

The range of the wireless signal is related to the transmit rate of the wireless communication. Communications at lower transmit rate may travel larger distances.

Note: The range values listed in the table are typical distances as measured at the IBM High-Rate Wireless LAN laboratories. These values may vary according to the actual radio conditions at the location where the High-Rate Wireless LAN product will be installed.

•The range of your wireless devices can be affected when the antennas are placed near metal surfaces and solid high-density materials.

•Range is also impacted due to obstacles in the signal path of the radio that may either absorb or reflect the radio signal.

Supported frequesncy sub-bands

Subject to the radio regulations that apply in your country, your High-Rate Wireless LAN PC Card may support a different set of 2.4 GHz channels. Consult your Authorized High- Rate Wireless LAN reseller or IBM Sales office for information about the radio regulations that apply in your country.

The following table lists the Hihg-Rate Wireless LAN IEEE 802.11 chanel sets in the 2400 to 2500 MHz range.

Channel ID	FCC	ETSI	FR	JP
1	2412	2112	n/a	2412
2	2417	2417	n/a	2417
3	2422	2422	n/a	2422
4	2427	2427	n/a	2427
5	2432	2432	n/a	2432
6	2437	2437	n/a	2437
7	2442	2442	n/a	2442
8	2447	2447	n/a	2447
9	2452	2452	n/a	2452
10	2457	2457	2457	2457

A-4High-Rate Wireless LAN PC Card User’s Guide