WA380 HALF–WAVE ANTENNA
The Shure Model WA380 Half–Wave Antenna provides up
to 3 dB more gain than the standard quarter–wave antennas
supplied with Shure wireless microphone receivers. When
remotely locating an antenna away from the receiver, the
WA380 Half–Wave Antenna must be used instead of the
standard quarter–wave antenna.
This WA380 Antenna Kit consists of the following items:
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Half–Wave Antenna (multi–section, telescoping)
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Right Angle Adapter
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Mounting Bracket
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Straight Adapter with hexagonal nuts
Note: Diversity receivers require two WA380 antennas.
When two WA380 antennas are used, Shure recommends
that at least one antenna be remotely located using an ex-
tension cable.
How to Select the Proper Antenna
The WA380 is available in three configurations, which cor-
respond to three frequency bands, as shown below:
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WA380A
169 to 185 MHz (33.5 in., 85 cm)
. . . . .
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WA380B
185 to 200 MHz (31 in., 78.5 cm)
. . . . .
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WA380C
200 to 230 MHz (28.5 in., 72.5 cm)
. . . . .
For best performance, choose the antenna that corre-
sponds to your system’s operating frequency. If you are us-
ing the WA380 Antenna with a Shure Model WA400 or
WA404 Antenna Distribuiton System, select the antennas
as follows:
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If the frequencies are all in the same band, select the an-
tennas for that band.
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If the frequencies span two adjacent bands, select anten-
nas for the lower frequency band.
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If the frequencies span all three bands, use one WA380A
Antenna and one WA380C Antenna.
Mounting the WA380 Antenna Directly to the Receiver
To mount the WA380 antenna to the receiver, proceed as
follows:
1. Attach the right–angle adapter to the antenna connector.
2. Attach the upward–facing female end of the adapter to the
antenna connector on the receiver.
3. Extend the antenna as far as possible to ensure maximum
reception.
Using the WA380 as a Remote Antenna
When locating an antenna away from the receiver, the
WA380 Half–Wave Antenna must be used instead of the
standard quarter–wave antenna. For best results, the anten-
FIGURE 1
WA380 ANTENNA MOUNTING
nas must be separated by at least one wavelength (1.5 m [60
in]) or more.
Important: Avoid mounting the antennas along metal
beams, or metal–studded walls, or other metal surfaces un-
less they extend above, or perpendicular to, any metal ob-
jects.
To install the WA380 antenna at a remote locaton, proceed
as follows:
1. Select a location for the bracket which will place the anten-
na as high as possible and away from metal obstructions.
Make sure the receiver antenna can be seen from the
transmitter. (Placing the antennas behind non–metallic
curtains or stage sets is permissible).
2. Attach the bracket to the mounting surface and secure it
with mounting hardware. See Figure 1.
Note: Attachment hardware for the mounting bracket is
not included in this kit. Screws or bolts and nuts must be
obtained by the installer.
3. Remove one hex nut from the adapter and insert the
adapter in the bracket hole.
4. Reinstall the hex nut removed in Step 3, then tighten both
hex nuts to secure the adapter to the bracket.
5. Screw the antenna to the top of the adapter.
6. Attach one end of the cable assembly (not supplied with
this kit) to the bottom of the adapter and attach the other
end of the cable assembly to the receiver antenna con-
nector.
Model WA380 User Guide
27A8802 (BB)
2002, Shure Incorporated
Printed in Korea
