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.

CONNECT ANTENNA CABLES

FIGURE 4

3.Install the antennas onto the bulkhead adapters protruding through the front panel. See 5.

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UA845

UHF Antenna Distribution System

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.

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.

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UA845

UHF Antenna Distribution System

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 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.

UA845

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UA845

UHF Antenna Distribution System

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UA845

UHF Antenna Distribution System

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UA845

UHF Antenna Distribution System

RECEIVERS

REMOTE-MOUNTED ANTENNAS

FIGURE 7

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ENGLISH

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Shure manual System Installation, Installing Front-Mounted Antennas, Mounting the UA845 in an Equipment Rack

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.