User's Manual

About Internal and External Airespace AP

Antennas

The 1200A Airespace AP enclosure contains one 802.11a radio

which drives two fully-enclosed high-gain antennas which provide

a large 360-degree coverage area. When equipped with a factory-

supplied external antenna, the 802.11a radio supports receive and

transmit diversity between the internal antennas and the external

antenna.

Note: No 802.11a external antennas are currently certified

or available in this release. Contact Airespace, Inc. for a list of

FCC-approved 802.11b external antennas.

The diversity function provided by Airespace radios can result in

lower multipath fading, fewer packet retransmits, and higher

throughput to and from clients.

Note: The Airespace APs must use the factory-supplied

internal or external antennas to avoid violating FCC regulations

and voiding the user’s authority to operate the equipment.

The 1200AB Airespace AP enclosure contains one 802.11a and

one 802.11b radio and four fully-enclosed high-gain antennas

which provide large 360-degree 802.11a and 802.11b coverage

areas. Note that the 802.11b radio supports receive and transmit

diversity between the internal antennas, while the 802.11a radio

supports diversity between the internal antennas and a factory-

supplied external antenna.

The 1200B Airespace AP enclosure contains one 802.11b radio

and a slot for an 802.11a radio card, and four high-gain antennas,

which provide large 360-degree 802.11b (and future 802.11a)

coverage areas. The 802.11b radio supports receive and transmit

diversity between the internal antennas. Note that the 802.11a

radio supports diversity between the internal antennas and a

factory-supplied external antenna.

Note: No 802.11a external antennas are currently certified

or available in this release. Contact Airespace, Inc. for a list of

FCC-approved 802.11b external antennas.

The Airespace APs have reverse-polarity TNC jacks for

installations requiring factory-supplied external directional or high-

gain antennas. The Airespace AP has one 802.11a external antenna

jack and two 802.11b external antenna jacks, which allow the

Airespace AP radios to provide transmit and receive diversity

using external antennas. This option can create more flexibility in

Airespace AP and antenna placement.