Allied Telesis AT-WA7500, AT-WA7501 manual Stacked Antenna Positioning for Dual Radio Access Points

Chapter 2: Installing the Access Points

ˆFollow the recommended antenna separation precisely when using the closest distances. Movement of as little as 3.05 cm (1.2 in) may strongly affect performance. You should choose the greatest distance possible within the constraints of your environment.

Stacked Antenna Positioning for Dual Radio Access Points

As an alternative to the physical separation of omni antennas, you can mount them along a single axis to minimize the antenna-to-antenna coupling.

Primary antenna for Radio 1

Secondary antenna for Radio 1

	All four antennas
Access Point	are mounted along
	a single axis.

Secondary antenna for Radio 2

Primary antenna for Radio 2

Note that antenna diversity works differently for 802.11g, 802.11b, and 802.11a radios.

About Antenna Diversity for 802.11g Radios

The 802.11g radios support antenna diversity, but it is not automatically enabled. You must manually enable this feature using the Access Point Configuration menu. From the main menu, click 802.11g Radio > Advanced Configuration. The Antenna Control field, let you choose Diversity.

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