Shure WA470 User Manual

When used as an antenna splitter, the Shure Model
WA470 Antenna Splitter/Combiner allows two diversity
VHF receivers or up to four non-diversity VHF receivers
to receive signals from only two antennas. This minimizes
the number of antennas required and helps prevent inter-
ference problems in installations with multiple receivers.
When used as an antenna combiner, the WA470 routes
signals from four antennas to the inputs of a single VHF
diversity receiver, while retaining true diversity perfor-
mance. This is useful in applications where one wireless
system must provide coverage in two areas.
Optimum results can be achieved by using Shure
WA380 half-wave antennas and WA420 or other 50Ω
coaxial cables. The WA470 can be used with the quarter-
wave antennas supplied with the wireless systems if the
antennas are mounted directly to the WA470.
NOTE: Each wireless system must operate on a different
frequency. Frequencies must be selected in accordance
with government regulations and system characteristics.
Contact your Shure dealer for more information.
Selecting the Proper Antenna
Shure recommends using WA380 half–wave antennas
with the WA470 splitter/combiner. Half–wave antennas
provide up to 3 dB more gain than quarter–wave anten-
nas. Half–wave antennas must be used if antennas are
not mounted directly to the WA470. They are available in
three configurations, which correspond to three frequency
bands:
• WA380A - 169 to 185 MHz
• WA380B - 185 to 200 MHz
• WA380C - 200 to 230 MHz
1/2 WAVE
ANTENNAS
2002, Shure Incorporated
27B8399 (Rev. 4)
WA470 as follows:
Installing the WA470 as an Antenna Splitter
To install the WA470 as an antenna splitter, refer to Figure
1 and proceed as follows:
• If the frequencies are both in the same band, select
• If the frequencies span two adjacent bands, select
• If the frequencies span all three bands, use one
1.Slide the WA470 into a 19-in. audio equipment rack and
2.Mount two half–wave antennas around the installation
• To wall mount the antennas, use the mounting brackets
• To rack mount the antennas, use a Shure WA440 Rack
• To mount the antennas on microphone stands, use Shure
3.Connect each antenna to the WA470 using coaxial
4.Fully extend the antennas for optimum reception.
5.Using the supplied RF cables, connect the antenna in-
NON–DIVERSITY RECEIVERS
WA470
DIVERSITY RECEIVERS
WA470
WA470 INSTALLED AS ANTENNA SPLITTER
FIGURE 2
Antenna Splitter/Combiner User Guide
When using multiple receivers, select antennas for each
antennas for that band.
antennas for the lowest frequency band.
WA380A antenna and one WA380C antenna. This will
cover the entire frequency range with only a slight
decrease in system performance.
secure it using four screws and washers.
as desired:
supplied with the WA380 antennas.
Mount Kit.
A57 swivel adapters (or equivalent) .
NOTE: As an alternative, two quarter–wave antennas
may be mounted directly on the front of the WA470.
cables (WA420 or equivalent).
puts of the receivers to the RF outputs of the WA470.
Model WA470
1/2 WAVE
ANTENNAS
Printed in U.S.A.