Shure UA844+Z18 Quick Start Manual

General Description

The Shure Model UA844+ is an antenna distribution system that allows for
the expansion of wireless microphone systems by splitting one pair of anten-
nas to multiple receivers. It also amplifies RF signals to compensate for in-
sertion loss that results from splitting signal power to multiple outputs. A
single UA844+ system can support up to five wireless receivers. A maximum
of five UA844+ systems may be used in a two-tiered configuration.
Accessories

System Components

• Front-mounting antenna hardware
• Rack-mounting hardware
• External power supply
• (2) 6 ft. BNC cables
• (4) Non-locking DC power cords (QLXD4, SLX4, BLX4R)
• (10) 22 in. BNC cables*
• (4) Locking DC power cords** (ULXD4)
*Model UA844+/LC substitutes (2) 22 in. BNC cables.
**Not included with Model UA844+/LC

Specifications

Power Requirements
14 to 18 V DC
DC Output
14 to 18 V DC (x4)
Output Current
Combined total from all DC outputs
2.5 A, maximum
Operating Temperature Range
-18°C (0°F) to 63°C (145°F)
Dimensions
45 x 483 x 172 mm (H x W x D)
©2017 Shure Incorporated
Model Variations
UA844+V
UA844+SWB
UA844+Z16
UA844+Z17
UA844+Z18
Note: Some units include a power switch on the front panel to meet regional
regulations.

Optional Accessories

1/2 Wave Omnidirectional Receiver Antenna for im-
proved wireless signal reception
In-Line RF Amplifier compensates for signal loss over
extended cable runs
UA874 Active Directional Antenna for improved wireless
signal reception with greater rejection of unwanted
signals
1/2 Wave Antenna Remote Mount Kit
Antenna Rack Panel with Cables and BNC Adapters
Note: Be sure to select antennas and accessories that are compatible with
the operating frequency range of your wireless system. Contact Shure or
your local retailer for help with selecting the right wireless accessories.
Selecting Antenna Cables
Use 50 ohm low-loss coaxial cable, such as RG-8U. Shure offers pre-termi-
nated antenna cables ranging from 6 to 100 feet.
NOTE: When ordering cables from Shure, select the low-loss "Z" models
(available for longer cables) when using frequency bands above 1000 MHz.
Net Weight
1.62 kg (3.6 lbs)
Connector Type
BNC
RF Frequency Range
model dependent
174 to 1805 MHz
Bias Voltage
15 V DC (150 mA, maximum) (x2)
Impedance
50 Ω
UA844SWB-plus
Antenna Distribution System
174-216 MHz
470-960 MHz
1240-1260 MHz
1492-1525 MHz
1785-1805 MHz
UA8
UA834
UA874
UA505
UA440
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