Telex UAD4 User Manual
R
T
elex
TELEX COMMUNICATIONS, INC. 12000 Portland Ave. South, Burnsville, MN 55337
UAD4
CAT. NO. 301614100 600-780 MHz
Instruction Sheet
General Description
The UAD4 Amplified Antenna Splitter makes it
possible to operate four UHF wireless diversity
microphone receivers on four separate frequen
cies using only two antennas.
SPECIFICATIONS
Frequency Range 301614100.................................................................................600-780 MHz
301614101.................................................................................780-900 MHz
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CAT. NO. 301614101 780-900 MHz
AMPLIFIED UHF
ANTENNA SPLITTER
It also features a high degree of output isolation;
a necessity in multi-frequency systems to prevent
intermodulation.
The UAD4 Splitter is compatible with Telex
UHF diversity wireless receivers.
PN 804036 Rev A
3rd Order Intercept Output ...........................................................................greater than 18 dbm
Net Gain ............................................................................................................greater than 2 dB
Noise Figure ...........................................................................................................less than 3 dB
Output Isolation...............................................................................................greater than 20 dB
Connectors, Antenna..........................................................................Standard TNC receptacles
Power Requirements................................................................................. 100-240VAC 50/60Hz
Features
The UAD4 is equipped with TNC type connec
tors. Low loss coaxial cables are also supplied
for splitter to receiver antenna jack connections.
The UAD4 has an internal power supply. Power
out jacks and cables are provided to supply up
to four receivers thus eliminating excess power
supply clutter.
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Rack panel mounting “ears” allow the UAD4 to
be mounted in a standard 19 inch equipment
rack. “Knock outs” in the ears allow front con
nection of antenna cables.
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-1-
System Configuration
Figure 2 illustrates the typical system configura
tion using the UAD4.
Figure 3 illustrates an arrangement where two
splitters have been cascaded. By connecting one
of the outputs of the first splitter to the antenna
inputs of the second splitter, three additional re
ceivers may be driven by a single pair of anten
nas.
SPECIAL NOTE: In any system, unused split
ter outputs should be terminated with a 50 ohm
“dummy load”. See the accessories listing at the
end of this manual.
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-
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INPUT A
12
OUTPUT A
Tel e x
POWER
UAD 4
ANTENNA
SPLITTER
Front View
3
4
POWER OUT
1234
15VDC
12
OUTPUT B
3
4
INPUT B
90-260VAC 50-60 Hz
POWER
Rear View
Figure 1
Front and Rear View
-2-
INPUT A
OUTPUT A
1234
RECEIVER 1
RECEIVER 2
RECEIVER 3
RECEIVER 4
POWER OUT
1234
15VDC
OUTPUT B
1234
INPUT B
90-260VAC 50-60 Hz
POWER
ANTENNA
INPUT A
INPUT A
OUTPUT A
12
OUTPUT A
12
Figure 2
System Configuration
3
3
POWER OUT
4
1234
15VDC
TO RECEIVERS
ONLY
TO RECEIVERS
OR SPLITTERS
POWER OUT
4
1234
15VDC
12
12
OUTPUT B
OUTPUT B
ANTENNA
3
3
INPUT B
4
INPUT B
4
90-260VAC 50-60 Hz
POWER
90-260VAC 50-60 Hz
POWER
TO RECEIVERSONLY
(DO NOTFEED SPLITTERS FROM SECONDARY UNITS)
Figure 3
Cascading
-3-
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