Telex TV Antenna UAD4 User Manual

R
Telex  
TELEX COMMUNICATIONS, INC. 12000 Portland Ave. South, Burnsville, MN 55337  
UAD4  
CAT. NO. 301614100 600-780 MHz  
CAT. NO. 301614101 780-900 MHz  
Instruction Sheet  
AMPLIFIED UHF  
ANTENNA SPLITTER  
PN 804036 Rev A  
General Description  
It also features a high degree of output isolation;  
a necessity in multi-frequency systems to prevent  
intermodulation.  
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.  
The UAD4 Splitter is compatible with Telex  
UHF diversity wireless receivers.  
SPECIFICATIONS  
Frequency Range 301614100 .................................................................................600-780 MHz  
301614101.................................................................................780-900 MHz  
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.  
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.  
-1-  
 
90-260 VAC 50-60 Hz  
OUTPUT  
A
OUTPUT  
B
POWER OUT  
INPUT  
A
INPUT  
B
1
2
3
4
1
2
3
4
1
2
3
4
15 VDC  
POWER  
RECEIVER 1  
RECEIVER 2  
RECEIVER 3  
RECEIVER 4  
Figure 2  
System Configuration  
ANTENNA  
ANTENNA  
90-260 VAC 50-60 Hz  
OUTPUT A  
OUTPUT B  
POWER OUT  
INPUT A  
INPUT B  
1
2
3
4
1
2
3
4
1
2
3
4
15 VDC  
POWER  
TO RECEIVERS  
ONLY  
TO RECEIVERS  
OR SPLITTERS  
90-260 VAC 50-60 Hz  
OUTPUT A  
OUTPUT B  
POWER OUT  
INPUT A  
INPUT B  
1
2
3
4
1
2
3
4
1
2
3
4
15 VDC  
POWER  
TO RECEIVERS ONLY  
(DO NOT FEED SPLITTERS FROM SECONDARY UNITS)  
Figure 3  
Cascading  
-3-  
 
Antenna Requirements  
The UAD4 may be used with a variety of anten-  
nas. For best results, use a pair of ALP-450 di-  
rectional log periodic antennas. See Figure 4.  
The ALP-450 offers the best performance and  
broadest bandwidth available.  
Good results may be obtained with optional  
CLA or FA-500 1/2 wave antennas.  
The 1/4-wave antennas that are supplied with  
the Telex wireless systems will provide adequate  
performance in some situations. The 1/4-wave  
antennas should be oriented as shown in Figure  
5. Do not use 1/4-wave antennas for remote  
mounting.  
R
T
elex  
ALP-450  
THIS END TOWARD TRANSMITTER  
ALP-450  
CLA  
1/2 Wave Antenna  
FA-500  
1/2 Wave Antenna  
Figure 4  
Antennas  
Antenna Placement  
If antennas are mounted directly to the UAD4,  
they should be configured as shown in Figure 5.  
Do not rack mount the UAD4 in this configu-  
ration. Serious loss of range and performance  
may occur.  
Place the UAD4 with antennas in a location that  
is in direct view of the transmitters for best re-  
sults.  
90-260 VAC 50-60 Hz  
OUTPUT A  
OUTPUT B  
POWER OUT  
NPUT A  
INPUT B  
1
2
3
4
1
2
3
4
1
2
3
4
15 VDC  
POWER  
Figure 5  
1/2 Wave Antenna Mounting  
-4-  
 
Antenna Placement for Optimum Range  
and Rack Mounting  
Rack Mounted Antenna Connectors  
Antenna cable connections may be made to the  
front of the rack mounted UAD4 by installing  
the adaptor cables supplied. Proceed as follows:  
For maximum range and when rack mounting,  
the antennas must be remotely located.  
Remove the plug “knock outs” from the  
front panel. See Figure 6.  
·
The ALP-450 comes complete with a variety of  
mounting hardware and 10 feet (3 meters) of  
low loss coaxial cable. A combination mounting  
bracket (Model No. AB-2) with 10 feet of coax-  
ial cable is available for 1/2 wave antennas.  
Install the adaptor cables from the back side  
of the bracket.  
·
Tighten the nut and lockwasher securely.  
·
Antennas should be placed in a location with a  
clear “signal path” to the transmitter. This “path”  
should be as short and free of obstructions as  
possible. Obstructions, such as walls ceilings,  
and metal objects, will reduce range and perfor-  
mance.  
Attach the other end of the cables to the in-  
puts of the UAD4. Tighten securely.  
·
Front of rack antenna connectors were de-  
signed to allow easier hook up of antenna ca-  
bles. We do not recommend mounting  
antennas directly to the connectors since per-  
formance may be degraded.  
Rack Mounting  
Insert the unit into a 19" rack enclosure and se-  
cure with screws (not supplied).  
Coax Cable  
For best results, it is recommended that cable  
losses be kept under 4 dB. (Every 3 dB of signal  
loss results in a system operating distance reduc-  
tion of 25%.  
See the accessories section of this manual for  
special low loss cable assemblies.  
REMOVE PLUG  
Figure 6  
Antenna Connectors  
-5-  
 
CAUTION: Do not attach antennas and splitters  
with a DC short circuit to the antenna in jacks  
when the power is turned on. Damage could re-  
sult to the splitter or other devices.  
12 Volt Power On "Antenna In" Jacks  
To power UAA-500 in-line antenna amplifiers,  
12 volt power is available on the center pin of  
the antenna in jacks. This power is disabled  
when the UAD4 leaves the factory but may be  
turned on by the installer.  
The following antennas and accessories may be  
used with power on: FA-1, CLA-X, ALP-450B,  
and UAA-500.  
To turn on the 12 volts, first take off the cover  
of the splitter by removing the screws. The  
jumper is installed on one pin of the header at  
the factory. To turn on power, unplug the  
jumper and install it on both pins of the header.  
See Figure 7.  
The following antennas and accessories may be  
used with the power off: FA-1, CLA-X, and  
ALP-450.  
J10  
J10  
C33 C32  
C33C32  
L8  
VC3  
C31  
L8  
VC3  
C31  
J16  
J16  
J16 POWER ON  
J16 POWER OFF  
J1  
J1  
L6  
L6  
C25 C30  
C25 C30  
J11  
J11  
C26  
C26  
J11 POWER OFF  
J11 POWER ON  
Figure 7  
Moving Jumper  
(Be sure to move jumper on both headers)  
-6-  
 
UAD4 Accessories and Replacement Parts  
AC Power Cables  
R
550024000  
550024002  
550024013  
690513  
Europe  
Telex  
ALP-450  
THIS END TOWARD TRANSMITTER  
U.K.  
North America  
Japan  
TP-2 50 OHM/TNC dummy load  
(For unused outputs on the UAD-4)  
Part No. 650095  
ALP-450  
450-900 MHz Log Periodic Antenna  
Includes mounting hardware and 10 feet (3 me-  
ter) coaxial cable with TNC connectors  
Order No. 71147000  
UAD4 Cables  
Model  
CXU-2  
PC-1  
Type  
2 Ft. Coaxial Cable 691459  
2 Ft. Power 690396  
1 Ft. Coaxial Cable 690401  
(for rack ears)  
Part No.  
CXU-1  
Model FA-500 1/2 wave Flexible Antenna,  
680-870 MHz  
Order No. 860031  
Special low loss antenna cables with  
TNC connectors  
Model  
Length  
Order No.  
CXU-10  
CXU-25  
CXU-50  
CXU-75  
10 Ft. (3 meter)  
690419  
25 Ft. (7.6 meter) 71151-025  
50 Ft. (15 meter) 71150-075  
75 Ft. (23 meter) 71151-075  
AB-2 Combination  
CXU-100 100 Ft. (30 meter) 71151-100  
Antenna Bracket and 10 foot (3 meter) coaxial  
cable with TNC connectors. Use with FA-500  
Order No. 71138000  
CLA Halfwave Antenna  
CLA-1  
CLA-2  
CLA-3  
CLA-4  
CLA-5  
CLA-6  
CLA-8  
520-565 MHz  
565-615 MHz  
615-660 MHz  
660-690 MHz  
690-725 MHz  
725-760 MHz  
798-865 MHz  
UAA-500  
Low noise antenna amplifier, 500-900 MHz  
(antenna not included)  
Order No. 7186400  
-7-  
 
PRINTED IN U.S.A.  
Copyright© 2004 by Telex  
TELEX COMMUNICATIONS, INC.  
All rights reserved  
July 2004  
 

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