Site Surveys; Antenna Options; Ap-5131 Antenna Options - Motorola AP-51 Series Product Reference Manual

2-6 AP-51xx Access Point Product Reference Guide
To maximize the access point's radio coverage area, Motorola recommends conducting a site survey
to define and document radio interference obstacles before installing the access point.

2.4.1 Site Surveys

A site survey analyzes the installation environment and provides users with recommendations for
equipment and placement. The optimum placement of 802.11a access points differs from 802.11b/g
access points, because the locations and number of access points required are different to support
the radio coverage area.
Motorola recommends conducting a new site survey and developing a new coverage area floor plan
when switching from 2 or 11Mbps access points (AP-3021 or AP-4131 models) to 54Mbps access
points (AP-5131 and AP-5181 models), as the device placement requirements are significantly
different.

2.4.2 Antenna Options

2.4.2.1 AP-5131 Antenna Options

Both Radio 1 and Radio 2 require one antenna and can optimally use two antennae per radio (4
antennae total for dual-radio models). Two antennae per radio provides diversity that can improve
performance and signal reception. Motorola supports two antenna suites for the AP-5131. One
antenna suite supporting the 2.4 GHz band and another antenna suite supporting the 5 GHz band.
Select an antenna model best suited to the intended operational environment of your AP-5131.
NOTE On a single-radio AP-5131, Radio 1 can be configured to be either a 2.4
Antenna connectors for Radio 1 are located in a different location from the Radio 2 antenna
connectors. On single radio versions, the R-SMA connectors can support both bands and should be
connected to a R-SMA dual-band antenna or an appropriate single band antenna. If necessary a
R-SMA to R-BNC adapter (Part No. 25-72178-01) can be purchased separately.
GHz or 5 GHz radio. On a dual-radio model, Radio 1 refers to the AP-
5131's 2.4 GHz radio and Radio 2 refers to the AP-5131 5 GHz radio.
However, there could be some cases where a dual-radio AP-5131 is
performing a Rogue AP detector function. In this scenario, the AP-5131 is
receiving in either 2.4 GHz or 5 GHz over the Radio 1 or Radio 2 antennae
depending on which radio is selected for the scan.