Aerohive access point, Руководство по развертыванию

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Deployment Guide 75
H
IVE
AP 320 P
RODUCT
O
VERVIEW
Antennas
Antennas are an integral part of the HiveAP 320. The HiveAP 320 has six internal single-band antennas. Three of the
antennas operate in the 2.4-GHz band (IEEE 802.11b/g/n) and have a 2-dBi gain. The other three antennas operate
in the 5-GHz band (IEEE 802.11a/n) and have a 3-dBi gain. All antennas are omnidirectional, providing fairly equal
coverage in all directions in a cardioid (heart-shaped) pattern around each antenna (see
Figure 2 ).
Figure 2 Cardioid radiation pattern
The three three 2.4-GHz antennas link to radio 1, and the three 5-GHz antennas link to radio 2. Conceptually, the
relationship of antennas and radios is shown in
Figure 3 .
Figure 3 Antennas and radios
The wifi0 interface links to radio 1 (frequency range = 2.4 GHz for IEEE 802.11b/g), and the wifi1 interface links to
radio 2 (frequency range = 5 GHz for IEEE 802.11a). These interface-to-radio relationships are permanent.
Although hive members automatically adjust their signal strength according to their environments, you can resize
the area of coverage by increasing or decreasing the signal strength manually by entering the
interface {
wifi0 | wifi1 } radio power <number>
command, where
<number>
can be from 1 to 20 and represents
a value in dBm.
HiveAP HiveAP
Note: To show the shape of radiation more clearly, this
illustration depicts the coverage provided by only one
active antenna pointing upward and is not drawn to scale.
The omnidirectional antennas
radiate fairly equally in all directions,
forming a cardioid pattern.
2.4 GHz
Antennas
5 GHz
Antennas
Radio 1
RF 802.11b/g/n
2.4 GHz
Radio 2
RF 802.11a/n
5 GHz
Cut-away view of the HiveAP 320 to show the relationship of the antennas and the two internal radios