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MODEL UA844 ANTENNA DISTRIBUTION SYSTEM
The Shure Model UA844 is a UHF antenna distribution system that
allows the expansion of wireless microphone systems by splitting
one pair of antennas to multiple receivers. It also amplifies RF sig-
nals to compensate for insertion loss that results from splitting sig-
nal power to multiple outputs. A single UA844 system can support
up to four wireless receivers. A maximum of five UA844 systems
may be used in a two-tiered configuration. Refer to the illustration
on page 11.
SYSTEM COMPONENTS
• Front-mounting antenna hardware
• Rack-mounting hardware
• External power supply
• Antenna cables for receiver connections
• DC power cables for receiver connections
SPECIFICATIONS
Carrier Frequency Range
470-900 MHz
Distributed RF Output Level (Gain)
-0.5 to 3 dB, 1 dB typical, from antenna input (unused ports ter-
minated with 50 Ω)
Output Connector Isolation
≥25 dB
Third Order Intercept Point (3 OIP)
24 dBm, typical
DC Input Voltage
14 to 18 Vdc
DC Output Voltage
14 to 18 Vdc, 4 connectors
Maximun Current Supply from DC Outputs
1.5 Amps
DC Antenna Voltage
12 Vdc
Impedance
50 Ω
RF Input/Output Antenna Connector Type
BNC
Operating Temperature Range
-7° C to 49° C (20° to 120° F)
Overall Dimensions
44.5 mm H x 482.6 mm W x 171.5 mm D (1.75 x 19 x 6.75 in.)
Net Weight
1.62 Kg (3.6 lbs)
Certification
UA844: Authorized under the Declaration of Conformity provi-
sion of FCC Part 15A. Certified by IC in Canada under RSS-123.
Conforms to European ETSI standards EN 301 489, Parts 1 and
9. Meets the essential requirements of the European R&TTE
Directive 99/5/EC; eligible to carry the CE marking.
PS44US: Conforms to safety standard IEC 60065.
PS44E: Conforms to safety standard IEC 60065.
PS44UK: Conforms to safety standard IEC 60065.
OPTIONAL ACCESSORIES
Line Amplifier (470-900 MHz) ....................................UA830WB
Powered Directional Antenna (470-900 MHz)...........UA870WB
1/2 Wave Antenna (774-862 MHz)................................ UA820A
1/2 Wave Antenna (690-746 MHz)................................ UA820B
1/2 Wave Antenna (662-698 MHz)................................UA820C
1/2 Wave Antenna (554-590 MHz)................................UA820D
1/2 Wave Antenna (746-784 MHz)................................ UA820E
1/2 Wave Antenna (518-578 MHz)................................UA820H
1/2 Wave Antenna (638-698 MHz)................................ UA820L
2 ft. BNC-BNC Cable ...................................................... UA802
6 ft. BNC-BNC Cable ...................................................... UA806
25 ft. BNC-BNC Cable .................................................... UA825
50 ft. BNC-BNC Cable ................................................... UA850
100 ft. BNC-BNC Cable ................................................ UA8100
REPLACEMENT PARTS
Hardware Kit .............................................................. 90VL1371
Bulkhead Adapters....................................................... 95A8647
Power Cables for SLX Receivers................................. 95A8373
Power Cables for ULX Receivers ................................ 95A8420
Power Supply................................................................PS44US
Power Supply.................................................................. PS44E
Power Supply................................................................PS44UK
LICENSING INFORMATION
Note that a ministerial license to operate this equipment may be re-
quired in certain areas. Consult your national authority for possible
requirements.
Changes or modifications not expressly approved by Shure Incorpo-
rated 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 applica-
tion, 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.
IMPORTANT: THIS RADIO EQUIPMENT IS INTENDED FOR USE IN
PROFESSIONAL
ENTERTAINMENT
APPLICATIONS.
NOTE: THIS EQUIPMENT 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
FULL TWO YEAR WARRANTY
Shure warrants this product to be free in normal use of any defects
in workmanship and materials for two (2) years from the date of
purchase. If your Shure product fails within this period, call 1-800-
516-2525 in the United States for details on repair, replacement, or
refund. In Europe, contact Shure Incorporated Europe GmbH at
+49 (7131) 7214-0 or +49 (7131) 7214-30 (service hotline) or
contact your authorized Shure distributor. This warranty does not
cover abuse or misuse of the product, use contrary to Shure's
instruction, ordinary wear and tear, an act of God, or
unauthorized repair.
2
(CLASS
I)
AND
SIMILAR
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