Shure UA834 Handleiding

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General Description

The UA834 provides more flexibility in wireless installations by increasing

the allowable lengthof cable runsbetween a receiver and antenna. Antennas

may be placed closer to the stage, or installed on ceilings and walls that

maintain a better line of sight with the transmitter.

Features

•Low-noise signal amplifier compensates for insertion loss in coaxial cable

•Compatible withShure Wireless Systems.Also maybe used withShure

UA845 and UA844 Antenna Distribution Systems

•Integrated threaded adapter mounts easilyto microphone stands or the

supplied surface-mount bracket

•Two-position gain selector switch

•LED indicator for RF signal overload

•Shure quality, ruggedness, and reliability

NOTE: Antenna amplifiers areintended to compensate forsignal loss in ca-

bles, not for increasing the range of the antenna. Attempting to “boost” the

signal beyond nominal levelsonly results in overloading the circuit and reduc-

ing performance.

Indicators and Settings

①DC POWER RF OVERLOAD/

Green: Indicates it isreceiving power fromthe antenna inputon the receiver

or combiner.

Red: Signal from the antenna (at theinput) is too strong.TO ANTENNA

Remove the inline amplifier or move it further down the cable run.

②GAIN

Set the gain switch to +6 dB for shorter cable runs, and +12 dB for longer

runs.

RF Overload

RF overloadcan occur at theinput to theinline amplifier orat the input tothe

receiver. An overload at either point degrades the signal.

When there is an RF overload indicator on the inline amplifier, the amplifier

might not benecessary, or it shouldbe placed further downthe cable run at

a midpoint between the antenna and receiver. The gain switch only affects

output gain, and cannot compensate for input overload at the amplifier.

If there is an RF overload signal on the receiver, reduce the gain on the inline

amplifier, ormove it furtherup thecable run sothere is morecable between

the receiver and the amplifier. Note that the overload level for the amplifier

might begreater thanthat forthe receiverinput, soit cannot beused toindi-

cate whether the signal will overload the receiver at that point in the cable

run.

Installation

Connect between the antenna and receiver (or antenna distribution system), as shown. The DC POWER LED illuminates green when the receiver ispowered

on.

•Use Shure low-loss coaxial antenna cable (or any 50 ohm, low-loss cable.

•The quality of the cable, not just the length, contributes to signal loss. A lighter grade 50 foot cable may require more gain than a 100 foot, low-loss cable.

•Active antennas, such as the UA874, have a built-in amplifier, and maynot require additional amplification.

Caution: Use only Shure antenna accessoriesto ensure the best operation.Donot use splitters, combiners,orantennas that provide aDCground. If necessary,

use a BNC DC block device (compatible with the receiver RF band).

1/4©2016 Shure Incorporated

UA834

In-Line Antenna Amplifier

Product specificaties