Aerohive AP121 - Antennas

Hardware Reference Guide 21
AP121 AND AP141 PRODUCT OVERVIEW
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.
Figure 2 AP141 antenna articulation and labels
For optimal coverage, align the antennas as shown in Figure 3. For more information about configuring
antennas for the best coverage, see "Configuring Antennas" on page 115.
Figure 3 Aligning the articulated antennas for AP141 devices
Length when
fully extended:
5 3/4” (14.6 cm)
Length when
hinged at 90°:
4 7/8” (12.4 cm)
Antennas and
connectors are
labeled for easy
identification.
2.4 GHz (0)
2.4 GHz (1)
5 GHz (0)
5 GHz (1)
Antennas swivel horizontally and vertically.
Ceiling mount
Wall mount
90°
90°
90°
90°
45°
45°
45°
45°
Straight
Straight
Straight
Straight