Shure System Installation, Connecting Receivers, Single UA845 Setup, Multiple UA845 Setup

Models: UA845

1 7
Download 7 pages 37.51 Kb
Page 4
Image 4

SYSTEM INSTALLATION

Installing Front-Mounted Antennas

Installing Remote Antennas

 

Remote-mounted antennas have the advantage of being free

 

from the unit and closer to the transmitters. They can be placed any-

 

where 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 Am-

 

plifier. Cables are available in UA825 (7.5 m [25 ft]) and UA850 (15

 

m [50 ft]) versions.

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.

2.Connect the supplied antenna cables to the receiver antenna inputs and adapters.

3.Install the antennas onto the bulkhead adapters protruding through the front panel.

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

power

UA845

UHF Antenna Distribution System

power

UA845

UHF Antenna Distribution System

power

UA845

UHF Antenna Distribution System

RECEIVERS

CONNECTING RECEIVERS

Single UA845 Setup

1.Using low-loss, 50 Ω coaxial cables (RG-58 or equivalent), con- 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.

3.To daisy-chain UR4 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-R receivers should be powered through a daisy-chain from a single UA845.

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 UR4 receiver, or a second UA845.

2.If desired, connect additional units in the same manner.

3.To daisy-chain UR4 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 sys- tem, 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 OUT- PUT ports will overload a single power supply, possibly causing damage to the equipment.

4

ENGLISH

Page 4
Image 4
Shure manual System Installation, Connecting Receivers, Single UA845 Setup, Multiple UA845 Setup

UA845 specifications

The Shure UA845 is a sophisticated antenna distribution system designed for professional audio applications, particularly in live sound and broadcast environments. Its primary purpose is to enhance the performance and reliability of wireless microphone and intercom systems by effectively managing multiple antennas and improving signal quality.

One of the standout features of the UA845 is its ability to support both active and passive antennas. This versatility allows users to customize their setup according to the specific needs of their venue or event. The UA845 offers four outputs that can connect to different receivers, enabling multiple wireless systems to operate simultaneously without interference. Each output is individually buffered, ensuring that the signal remains strong and clear, even when distributing to several devices.

The UA845 employs advanced RF filtering technology to minimize noise and interference from other electronic devices. This feature is especially beneficial in crowded environments where wireless frequencies may be congested. The built-in signal amplification further enhances performance, allowing for longer cable runs without degradation of audio quality. With a robust construction, the unit is reliable and durable, making it suitable for the rigors of touring and live performance.

Additionally, the UA845 includes a built-in power supply that can feed power to the connected antennas, simplifying the setup and reducing the need for additional power sources. This power distribution functionality also helps to maintain a clean, organized stage setup.

For those in need of monitoring and control, the UA845 comes equipped with LED indicators that provide visual feedback on power status, signal strength, and RF activity. This feature allows users to troubleshoot potential issues quickly and ensures optimal performance during critical moments.

The UA845 is also compatible with the Shure Axient Digital and QLX-D systems, making it a flexible option for professionals who rely on high-quality audio solutions. Its seamless integration with these systems highlights its importance in comprehensive audio setups, ensuring that engineers and performers alike can rely on exceptional sound reproduction.

In summary, the Shure UA845 is an essential tool for audio professionals, boasting features like active and passive antenna support, signal amplification, RF filtering, and an integrated power supply. Its design prioritizes both performance and ease of use, making it a valuable addition to any wireless audio system.