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MODEL UA844SWB ANTENNA DISTRIBUTION SYSTEM
The Shure Model UA844SWB is a UHF antenna distribution sys-
tem that allows the expansion of wireless microphone systems by
splitting one pair of antennas to multiple receivers. It also amplifies
RF signals to compensate for insertion loss that results from split-
ting signal power to multiple outputs. A single UA844SWB system
can support up to four wireless receivers. A maximum of five
UA844SWB 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
470-952 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
30 dB, typical
Third Order Intercept Point (3 OIP)
21 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
UA844SWB: Authorized under the Declaration of Conformity
provision of FCC Part 15.
Certified under Industry Canada to
RSS-123 (IC: 616A-UA844SWB).
Conforms to European ETSI
standards EN 301 489, Parts 1 and 9. Meets the essential re-
quirements of the European R&TTE Directive 99/5/EC; eligible
to carry the CE marking.
PS45US: Conforms to safety standard IEC 60065.
PS45E: Conforms to safety standard IEC 60065.
PS45UK: Conforms to safety standard IEC 60065.
OPTIONAL ACCESSORIES
Line Amplifier (470-900 MHz) ....................................UA830WB
Line Amplifier (470-698 MHz) ................................UA830USTV
Line Amplifier (944-952 MHz) .......................................UA830X
Powered Directional Antenna (470-900 MHz)...........UA870WB
Powered Directional Antenna (470-698 (MHz) ......UA870USTV
Powered Directional Antenna (944-952 MHz)...............UA870X
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 (470-530 MHz)................................UA820G
1/2 Wave Antenna (518-578 MHz)................................UA820H
1/2 Wave Antenna (638-698 MHz)................................ UA820L
1/2 Wave Antenna (944-952 MHz)................................UA820X
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................................................................PS45US
Power Supply.................................................................. PS45E
Power Supply................................................................PS45UK
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 (CLASS I) AND
SIMILAR 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.