Antennas - Aerohive Networks AP121 Hardware Reference Manual

Antennas

The antennas for the AP121 and AP141 are described below.
AP121
The AP121 has four internal single-band antennas. The 2.4 GHz band antennas (IEEE 802.11b/g/n) have a
2-5 dBi gain. The 5 GHz antennas (IEEE 802.11a/n) have a 3-6 dBi gain. All antennas are omnidirectional
and provide fairly equal coverage in all directions.
AP141
The AP141 has four male 802.11a/b/g/n RP-SMA (reverse polarity-subminiature version A) external
antenna connectors and four external articulated antennas (two 2.4 GHz and two 5 GHz). The external
antennas have a 4-dBi gain, are omnidirectional, and provide fairly equal coverage in all directions in a
toroidal (donut-shaped) pattern. The antennas and connectors are labeled for easy identification and
connection, and swivel in all directions, as shown in
Figure 2 AP141 antenna articulation and labels
Antennas and
connectors are
labeled for easy
identification.
Length when
hinged at 90°:
4 7/8" (12.4 cm)
Length when
fully extended:
5 3/4" (14.6 cm)
For optimal coverage, align the antennas as shown in
antennas for the best coverage, see
Figure 3 Aligning the articulated antennas for AP141 devices
Ceiling mount
Straight
90°
90°
Straight
Hardware Reference Guide
Figure
2.4 GHz (0)
2.4 GHz (1)
Antennas swivel horizontally and vertically.
"Configuring Antennas" on page
Straight
45°
45°
90°
AP121
AND
2.
5 GHz (0)
5 GHz (1)
Figure 3. For more information about configuring
71.
Wall mount
90°
Straight
AP141 P O
RODUCT VERVIEW
45°
45°
11