Model UA845 User Guide
ANTENNA DISTRIBUTION SYSTEM
USER'S GUIDE
©2006, Shure Incorporated
27AS8862 (Rev.1)
Printed in U.S.A.
POWERING ON/POWERING OFF THE UA845
Last powered on First powered off
To avoid damaging internal components, the UA845 amplifier
should be the last component in your system to be powered on.
To avoid damaging internal components, the UA845 amplifier
should be the first component in your system to be powered off.
CONNECTING ANTENNA CABLES
Accidentally connecting the center cable pin (power supply) to the cable housing (ground) may cause internal component damage. Use
caution when installing cables.
SAFETY INFORMATION
! IMPORTANT SAFETY INSTRUCTIONS !
1. READ these instructions.
2. KEEP these instructions.
3. HEED all warnings.
4. FOLLOW all instructions.
5. DO NOT use this apparatus near water.
6. CLEAN ONLY with dry cloth.
7. DO NOT block any ventilation openings. Install in accordance with the manufacturer's instructions.
8. DO NOT install near any heat sources such as radiators, heat registers, stoves,
or other apparatus (including amplifiers) that produce heat.
9. DO NOT defeat the safety purpose of the polarized or grounding-type plug. A
polarized plug has two blades with one wider than the other. A grounding type
plug has two blades and a third grounding prong. The wider blade or the third
prong are provided for your safety. If the provided plug does not fit into your
outlet, consult an electrician for replacement of the obsolete outlet.
10. PROTECT the power cord from being walked on or pinched, particularly at plugs,
convenience receptacles, and the point where they exit from the apparatus.
11. ONLY USE attachments/accessories specified by the manufacturer.
12.
13. UNPLUG this apparatus during lightning storms or when unused for long periods of
time.
14. REFER all servicing to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not operate normally, or has been
dropped.
15. DO NOT expose the apparatus to dripping and splashing. DO NOT put objects filled
with liquids, such as vases, on the apparatus.
USE only with a cart, stand, tripod, bracket, or table
specified by the manufacturer, or sold with the
apparatus. When a cart is used, use caution when
moving the cart/apparatus combination to avoid
injury from tip-over.
This symbol indicates that dangerous voltage constituting a
risk of electric shock is present within this unit.
This symbol indicates that there are important operating and
maintenance instructions in the literature accompanying this unit.
TABLE OF CONTENTS
SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SYSTEM FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CONTROLS AND CONNECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SYSTEM INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CONNECTING RECEIVERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
LICENSING AND WARRANTY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3
MODEL UA845 ANTENNA DISTRIBUTION SYSTEM
UA845
UHF Antenna Distribution System
power
The Shure Model UA845 is an amplified, UHF Antenna Distribution System that expands a wireless microphone system by splitting
one pair of antennas to multiple Shure U4 or Shure UC4 wireless
receivers. It also amplifies RF signals to compensate for insertion
loss due to splitting signal power to mulitple output connectors.
Each UA845 allows up to four receivers to use the same antennas.
CASCADE connectors allows connections to a fifth receiver or a
second UA845. There are also power connectors for powering
Shure UHF and UC Wireless systems.
Each system contains the following items:
•
UA845 Antenna Distribution System
•
Rack-mounting hardware
•
Surface-mounting hardware
•
Front-mounting antenna hardware
•
18-in. Power OUTPUT Cord
•
Power Cord
•
Antenna cables for receiver connections
•
DC power cables for receiver connections to DC power connectors on UC receivers.
SYSTEM FEATURES
•
Expandability.
is designed for large UHF wireless systems. Each unit allows
up to four wireless receivers to use the same two antennas,
and the CASCADE ports allow connection to a fifth receiver or
a second UA845.
• Compatibility.
less microphone receivers operating within a compatible frequency range (see UHF Carrier Frequency Ranges in the
Specifications section).
• CASCADE Ports.
ports allow an additonal UA845 unit or a fifth wireless receiver.
A large wireless system can be run off of a single pair of antennas.
The UA845 UHF Antenna Distribution System
The UA845 is compatible with all Shure wire-
Two 50 Ω, BNC-type antenna CASCADE
The Shure Model UA845 ensures maximum sensitivity and signal processing capability, providing the widest radio range possible
for the largest number of wireless receivers. To get the most from
this system, follow these guidelines:
•
When using long runs of cable for remote-mounted antennas,
use the UA830 In-Line RF Amplifier and the Shure Model
UA825 or UA850 Remote Antenna Extension cables (RG-8/X
or equivalent), which have low loss at UHF operating
frequencies
•
Locate multiple transmitters more than 3 m [10 ft] from
receiving antennas
• Power OUTPUT and OUT Connectors.
ceivers can be daisy-chained and powered from a single
source via the Power OUTPUT connectors. Up to four (4) UC4
receivers can be powered from the UA845 using the 12 Vdc
OUT connectors.
•
Low Noise and Intermodulation Distortion.
maintains clean signals with minimal distortion.
•
Insertion Loss Compensation.
multiple output ports, there is a loss in signal strength. The
UA845 amplifies signals to compensate, ensuring a strong signal to the receivers.
•
Front-Mounted Antennas.
to front-mount the antennas, if desired.
Whenever a signal is split to
The UA845 comes with hardware
Up to five (5) U4 re-
The UA845
4ENGLISH
CONTROLS AND CONNECTORS
Front Panel
UA845
UHF ANTENNA DISTRIBUTION SYSTEM
1 2
Back Panel
AC Power INPUT Connector.
1
AC Power OUTPUT Connector. Each UA845 has a
2
Power OUTPUT connector for daisy-chaining up to five
(5) Shure Model U4 UHF Diversity Single or Dual Receivers to a single power source.
NOTE: This connector does not work for Shure UC4
Receivers.
ANTENNA IN Ports, Channel A & B. BNC-type connec-
3
tors for antennas.
FRONT PANEL
POWER INDICATOR POWER ON/OFF
FIGURE 1
6 6
1 2 3 4 5 3 4 5
BACK PANEL
FIGURE 2
RF CASCADE Connectors (Output connector 5),
4
Channel A & B. BNC-type connectors for adding a fifth
receiver, or additional UA845's, permitting more wireless
receivers to be connected.
RF OUTPUT Connectors, Channel A & B. BNC-type
5
connectors for up to four wireless receivers.
12 Vdc OUT Connectors. These power connectors are
6
designed to power up to four (4) Shure UC4 Wireless
systems.
SWITCH
5 ENGLISH
SYSTEM INSTALLATION
Installing Front-Mounted Antennas
The UA845 comes equipped for front-mounted antennas.
Front-mounting improves RF performance of the system by moving
the antennas to the front of the rack. When a unit is located in a
rack, antennas should be either front- or remote-mounted.
1. Insert the bulkhead adapters through the holes in each bracket,
and secure them from each side, using the supplied hardware.
INSERTING BULKHEAD ADAPTERS
FIGURE 3
2. Connect the supplied antenna cables to the receiver antenna
inputs and adapters.
Mounting the UA845 in an Equipment Rack
NOTE: If front mounting the antennas, connect them before
mounting the UA845 in the rack. Once in the rack, it is more
difficult to insert the bulkhead adapters and connect the
antenna cables.
1. Insert the unit into a 19-inch equipment rack.
2. Using the screws supplied, secure the unit to the rack.
UA845
UHF Antenna Distribution System
power
RACK MOUNTING
FIGURE 6
3. If the antennas are remote mounted from the back of the rack,
insert the supplied plastic plugs into the holes on the front of the
brackets.
Installing Remote Antennas
Remote-mounted antennas have the advantage of being free
from the unit and closer to the transmitters. They can be placed anywhere within the recommended cable length, creating a much wider
radio reception range and further reducing the possibility of signal
dropout. When remote-mounted antennas are desirable, please
ask your Shure dealer for information on the UA830 In-Line RF Amplifier. Cables are available in UA825 (7.5 m [25 ft]) and UA850 (15
m [50 ft]) versions.
CONNECT ANTENNA CABLES
FIGURE 4
3. Install the antennas onto the bulkhead adapters protruding
through the front panel. See 5.
UA845
UHF Antenna Distribution System
power
ATTACH ANTENNAS TO THE ADAPTERS
FIGURE 5
NOTE: For the best results, point the antennas up and away
from each other at 45° angles from vertical. This ensures the
best possible reception and greatly reduces the possibility of
signal dropout. Always perform a walk-through test of the
system in the performing area before using a wireless system.
UA845
UA845
UHF Antenna Distribution System
UA845
UHF Antenna Distribution System
UA845
UHF Antenna Distribution System
RECEIVERS
power
power
power
REMOTE-MOUNTED ANTENNAS
FIGURE 7
6ENGLISH
CONNECTING RECEIVERS
Single UA845 Setup
1.
Using low-loss, 50
nect the right and left (Channels 1 through 4, A and B) RF
OUTPUT ports on the UA845 to the corresponding left and
right antenna inputs on each receiver. Use the CASCADE ports
to connect a fifth receiver.
2. Using the supplied power cable, connect the UA845 to a power
outlet.
Ω coaxial cables (RG-58 or equivalent), con-
12 VDC POWER CONNECTOR
AC PWR OUTPUT
AC PWR INPUT
TO POWER SUPPLY
TO
RECEIVERS
AC PWR OUTPUT
AC PWR INPUT
ANT B IN
CASCADE B
3. To daisy-chain U4 Receivers together with Power OUTPUT
cables, connect the Power OUTPUT connector of the UA845 to
the Power INPUT connector of one receiver. Connect the
remaining receivers similarly. Connect the POWER INPUT of
the unit to a power supply.
NOTE: No more than five (5) Shure UHF receivers should be
powered through a daisy-chain from a single UA845.
4. To power Shure UC4 receivers, connect the power input ports of
the UC4 receivers to the 12 Vdc OUT of the UA845. Up to four
UC4 Receivers can be powered.
12 VDC POWER CONNECTOR
ANT A IN
ANT A OUTS
TO
RECEIVERS
ANT A IN
ANT B OUTS
ANT B IN
UA845
CASCADE A
U4 RECEIVER
TO POWER SUPPLY
TO UA845 ANT B IN
12 VDC PWR INPUT
TO RECEIVERS
U4 RECEIVER
ANT A IN ANT B IN
UA845
U4 RECEIVER
MULTIPLE UA845 SETUP
FIGURE 8
TO
RECEIVERS
TO UA845
ANT A IN
7 ENGLISH
Multiple UA845 Setup
1. Connect the CASCADE ports (connector 5) for RF OUTPUT
Channels A and B of one UA845 to the ANTENNA INPUT,
channels A and B, of a U4 receiver, a UC4 receiver, or a second UA845.
2. If desired, connect additional units in the same manner.
3. To daisy-chain U4 Receivers together with Power OUTPUT
cables, connect the Power OUTPUT connector of the UA845 to
the Power INPUT connector of one receiver. Connect the
remaining receivers similarly. Connect the POWER INPUT of
the unit to an AC power supply.
WARNING: When adding additional UA845's to a system,
each UA845 should be connected to a separate power
supply. No more than five (5) receivers can be powered
from a single UA845. Daisy-chaining multiple UA845's
through the Power OUTPUT ports will overload a single
power supply, possibly causing damage to the equipment.
4. To power Shure UC4 receivers, connect the power input ports of
the UC4 receivers to the 12 Vdc OUT of the UA845. Up to four
UC4 Receivers can be powered.
12 VDC POWER CONNECTOR
AC PWR OUTPUT
AC PWR INPUT
TO POWER SUPPLY
TO
RECEIVERS
AC PWR OUTPUT
AC PWR INPUT
12 VDC PWR INPUT
ANT B IN
CASCADE B
ANT B OUTS
ANT B IN
UC4 RECEIVER
ANT A IN ANT B IN
UA845
CASCADE A
U4 RECEIVER
12 VDC POWER CONNECTOR
ANT A IN
ANT A OUTS
TO
RECEIVERS
ANT A IN
TO POWER SUPPLY
TO UA845 ANT B IN
TO RECEIVERS
UA845
U4 RECEIVER
MULTIPLE UA845 SETUP
FIGURE 9
8ENGLISH
TO
RECEIVERS
TO UA845
ANT A IN
SPECIFICATIONS
UHF Carrier Frequency Range
UA845-UA ............................................................782–806 MHz
UA845-UB ............................................................692–716 MHz
UA845-MA ............................................................782–810 MHz
UA845-MB ............................................................800–830 MHz
UA845-KK.............................................................838–862 MHz
UA845-MC............................................................774–782 MHz
UA845 US.............................................................500–900 MHz
UA845 UK.............................................................500–900 MHz
UA845 E ...............................................................500–900 MHz
Distributed Output Level (Gain)
Models UA845-UA, UB, MA, MB, KK, MC:
3.5 dB typical, 2.0 dB to 5.0 dB from antenna input
(Output ports 1–4).
0.5 dB typical, –1.0 dB to 2.0 dB from antenna input
(Cascade port)
ModelsUA845 US, UK and E:
3 dB typical, 0 dB to 3.5 dB from antenna input
(Output ports 1–4)
1 dB typical, –1.6 dB to +1.8 dB from antenna input
(Cascade port)
Output Connector Isolation
Greater than 25 dB
Third Order Intercept Point (3 OIP)
Typical 24 dBm
Input/Output AC Line Voltage
100 to 240 Vac, 50/60 Hz, unswitched
DC Output Voltage
12 Vdc, 4 connectors
Maximun Current Supply from DC Outputs
1.1 Amps
Impedance
50 Ω
Operating Temperature Range
–7° C (+20° F) to 49° C (+120° F)
Overall Dimensions
44.5 mm high x 482.6 mm wide x 295.3 mm deep
(1 3/4 x 19 5/8 x 11inches)
Net Weight
3.32 Kg (7 lbs, 5 oz)
Input/Output Antenna Connector Type
BNC-type
AC Power Consumption
15 W per unit typical. When used with 4 UC4's, 55 W max.
Certification
UA845: LISTED by UL and CUL (U.S. and Canada), IC and
FCC; IC Certified (Canada). Meets applicable European directives for CE marking eligibility. VDE GS-Certified. Meets Requirements of EMC Standard and 301 489 Parts 1 and 9. Meets
the essential requirements of the European R&TTE Directive
99/5/EC and are eligible to carry the CE marking.
N108
Furnished Accessories
2 ft. Coaxial Antenna Cable (RG-58) (12) ....................... UA802
Optional Accessories
1/2-Wave Antenna
UA820A ..............................................................(774–865 MHz)
UA820B ..............................................................(690–746 MHz)
UA820C ..............................................................(662–698 MHz)
UA820D ..............................................................(554–590 MHz)
UA820E ..............................................................(746–784 MHz)
25 ft. Coaxial Cable (RG-8/X).......................................... UA825
50 ft. Coaxial Cable (RG-8/X).......................................... UA850
30.4 m (100 ft.) Antenna Extension Cable.................... UA8100
In-Line RF Amplifier
UA830A ..............................................................(782–810 MHz)
UA830UB............................................................(692–716 MHz)
UA830C ..............................................................(800–830 MHz)
UA830D ..............................................................(774–782 MHz)
UA830KK............................................................(838–862 MHz)
UA830WB...........................................................(470–900 MHz)
Active Directional Antenna
UA870A .............................................................(782–810 MHz)
UA870MB ...........................................................(800–830 MHz)
UA870MC ...........................................................(774–782 MHz)
UA870KK............................................................(838–862 MHz)
UA870UB............................................................(692–716 MHz)
UA870WB...........................................................(470–900 MHz)
Replacement Parts
Hardware Kit.............................................................. 90XN1371
Bulkhead Adapters .......................................................95A8994
120 VAC Power Line Cord............................................ 95B8389
230 VAC Power Line Cord............................................95C8247
240 VAC Power Line Cord (U.K.) ................................. 95A8713
230 VAC Power Line Cord (AZ)....................................95B9128
AC Jumper Power Cord (AZ)........................................ 95B9129
120 VAC, 16-in. Power-Through Cord..........................95B8576
230 VAC, 18-in. Power-Through Cord..........................95B8678
12 Vdc Power Cables................................................... 95B8420
THIS RADIO EQUIPMENT IS INTENDED FOR USE IN MUSICAL PROFESSIONAL ENTERTAINMENT AND SIMILAR
APPLICATIONS.
NOTE: THIS RADIO APPARATUS MAY BE CAPABLE OF OPERATING ON SOME FREQUENCIES NOT AUTHORIZED IN
YOUR REGION. PLEASE CONTACT YOUR NATIONAL AUTHORITY TO OBTAIN INFORMATION ON AUTHORIZED
FREQUENCIES FOR WIRELESS MICROPHONE PRODUCTS IN YOUR REGION
9 ENGLISH
LICENSING AND WARRANTY INFORMATION
Warranty. Shure Incorporated (“Shure”) hereby warrants that these products will be free from defects in material and workmanship for
a period of two years from the date of purchase. At its option, Shure will repair or replace the defective product and promptly return it to you,
or refund the purchase price. Retain proof of purchase to validate the purchase date and return it with any warranty claim. If you believe this
product is defective within the warranty period, carefully repack the unit, insure it, and return it postpaid to:
Shure Incorporated
Attention: Service Department
5800 W. Touhy Avenue
Niles, IL 60714-4608 U.S.A.
For service outside the United States, return the product to your authorized Shure Distribution Center.
All claims of defects or shortage should be directed to the above address. Please furnish model number, operating frequency, and date,
place and proof of purchase (such as a copy of your sales receipt) to establish warranty. Your letter should include all pertinent details including applicable model or part numbers and a brief description of the problem. Do not mail any units or parts to Shure unless requested
to do so by Shure's Service Department. Any returned items must have prior authorization. Unauthorized returns are delayed in handling;
these delays can be avoided by contacting Shure in advance and furnishing the necessary information.
Shure reserves the right to make design changes and product improvements on any previously manufactured products. Shure also reserves the right to ship new and/or improved products which are similar to the form, fit and function of the originally ordered products.
Licensing. Changes or modifications not expressly approved by Shure Incorporated could void your authority to operate the equipment.
Licensing of Shure wireless microphone equipment is the user's responsibility, and licensability depends on the user's classification and
application, and on the selected frequency. Shure strongly urges the user to contact the appropriate telecommunications authority concerning proper licensing, and before choosing and ordering frequencies other than standard frequencies.
10ENGLISH
SHURE Incorporated http://www.shure.com
미국 , 캐나다 , 중남미 , 카리브해 지역
5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.
전화 : 1-847-600-2000 미국 팩스 : 1-847-600-1212
국제 팩스 : 847-600-6446
유럽 , 중동 , 아프리카 :
Shure Europe GmbH, 전화 : 49-7131-72140 팩스 : 49-7131-721414
아시아 , 태평양 :
Shure Asia Limited, 전화 : 852-2893-4290 팩스 : 852-2893-4055
SHURE Incorporated http://www.shure.com
美国、加拿大、拉丁美洲、加勒比海地区：
5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.
电话：847-600-2000 美国 传真：847-600-1212
国际 传真： 847-600-6446
欧洲、中东、非洲：
Shure Europe GmbH，电话：49-7131-72140 传真： 49-7131-721414
亚太地区：
Shure Asia Limited，电话：852-2893-4290 传真： 852-2893-4055
SHURE Incorporated http://www.shure.com
米国、 カ ナダ、 中南米、 カ リ ブ 海諸国 ：
5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.
米国内
Tel:847-600-2000
海外からの
Fax: 847-600-6446
Fax:847-600-1212
ヨ ー ロ ッ パ、 中東、 ア フ リ カ ：
Shure Europe GmbH, Tel:49-7131-72140 Fax: 49-7131-721414
アジ ア太平洋 ：
Shure Asia Limited, Tel:852-2893-4290 Fax: 852-2893-4055
SHURE Incorporated http://www.shure.com
United States, Canada, Latin America, Caribbean:
5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.
Phone: 847-600-2000 U.S. Fax: 847-600-1212
Intl Fax: 847-600-6446
Europe, Middle East, Africa:
Shure Europe GmbH, Phone: 49-7131-72140 Fax: 49-7131-721414
Asia, Pacific:
Shure Asia Limited, Phone: 852-2893-4290 Fax: 852-2893-4055
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