Connecting to a Receiver

This antenna is compatible with any receivers, distribution systems, and splitters that operate within the antenna's frequency range. For receivers with multiple antenna ports, connect each antenna being used to a separate port.

Note: The antenna requires bias voltage from the receiver or distribution system to operate on the +10 dB setting and for LED functionality. If these devices do not supply bias voltage, the Shure UABIAST inline power supply can be used. The antenna still operates with all other gain settings if bias voltage is not supplied.

Setting the Gain Switch

Use the gain switch to optimize antenna performance for the RF characteristics of the room or location. Monitor the RF signal from the receiver to ensure optimal signal strength.

RF Gain Setting (dB)

Use Scenario

Pad: −10, −20

Provides increased isolation from other RF sources when the desired wireless microphone signal strength is strong. If

 

the RF OVERLOAD LED illuminates when using a higher gain setting, the pad should be used to attenuate the signal,

 

but only after verifying that the transmitter is an appropriate distance from the antenna.

0 (Default)

Suitable for typical room installations and provides enough RF gain in most cases when cable runs are between 10 and

 

50 feet.

Boost: +10

Provides an extra 10 dB of RF gain to compensate for signal loss if using long cable runs (50 feet or more).

Note: Bias power supplied by receiver antenna ports or an external power source is required for the +10 dB boost setting and for illuminating the LEDs. For un-powered applications, the -20, -10, and 0 dB settings are still functional; however, the LEDs will not illuminate.

Cable Maintenance

To maintain top performance for UA825, UA850 or UA8100 antenna cables:

•Avoid sharp bends or kinks in the cables.

•Do not deform cables with makeshift clamps, such as bending a nail over the cable.

•Do not use in permanent outdoor installations.

•Do not expose to extreme moisture.

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Shure UA864 manual Connecting to a Receiver, Setting the Gain Switch, Cable Maintenance
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UA864 specifications

The Shure UA864 is an advanced antenna designed for wireless microphone systems, specifically engineered to enhance the performance and reliability of audio capture in various environments. Featuring a compact and sleek design, it serves as a vital component in professional audio setups, providing superior signal quality for both live performances and studio recordings.

One of the standout features of the UA864 is its wide frequency range, making it compatible with numerous Shure wireless systems. This versatility allows audio professionals to use it in diverse settings, from concerts to corporate events, without worrying about frequency interference. The UA864 operates optimally in the UHF frequency range, where it effectively captures and transmits high-quality audio signals.

The UA864 boasts a robust construction, ensuring durability in demanding conditions. Its weather-resistant housing makes it suitable for outdoor applications, safeguarding it against environmental factors like moisture and dust. Additionally, its lightweight design facilitates easy installation and transport, making it a preferred choice for touring professionals.

An important characteristic of the UA864 is its specialized polar pattern, which is designed to maximize signal reception while minimizing background noise. This feature is crucial for live performances where capturing clean audio is essential. The antenna’s ability to focus on sound sources and reject unwanted interference contributes significantly to the overall audio quality.

Another notable technology integrated into the UA864 is its DSP processing capability. Digital Signal Processing (DSP) enhances the clarity and intelligibility of audio signals, ensuring consistent sound performance even in challenging acoustical environments. This technology is particularly beneficial for applications where speech intelligibility is critical, such as in conference settings.

Moreover, the UA864 supports both passive and active operation modes, giving users the flexibility to choose the best setup for their specific needs. When used passively, it does not require external power, making it an efficient choice for simpler setups. Conversely, its active mode allows for greater amplification of the signal, ideal for larger venues or when extended coverage is necessary.

In summary, the Shure UA864 is a high-performance antenna characterized by its wide frequency range, durable construction, specialized polar pattern, and innovative DSP capabilities. Its versatility and reliability make it an exceptional choice for audio professionals looking to achieve the best possible sound quality in a variety of settings. Whether for live events, broadcast applications, or studio recordings, the UA864 stands out as a premier solution for enhancing wireless audio performance.
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