Shure UA830 User Manual

SHURE MODEL UA830

UHF IN-LINE RF AMPLIFIER

SHURE MODÈLE UA830

UHFAMPLIFICATEUR D'ANTENNE EN LIGNE RF

SHURE MODELL UA830

UHF IM ZEILE HF-ANTENNENVERSTÄRKER

MODELO UA830 DE SHURE

AMPLIFICADOR DE ANTENAS EN LINEA RF

MODELLO UA830 SHURE

UHF IN AMPLIFICATORE AD ANTENNA IN LINEA RF

©2008 Shure Incorporated

D8643 (Rev. 9)

27

Pri

nted in U.S.A.

GENERAL

45

antenna A in

12.7V out
150mA

receiver outputs

200Ω

lift

GND

line

mic

antenna B in

12.7V out
150mA

network

activity

networking

ethernet

RJ-45

45

The Shure UA830 is a low-noise, in-line antenna amplifier. The UA830
is intended for remote-mounting antennas to a Shure Model UR4 or ULX
receiver or Model UA845, or UA844 distribution amplifier in a large in­stallation, effectively shortening the distance from the transmitters. The

it receives power through its output port from the Shure receiver or

un
distribution amplifier. When an antenna is remote-mounted, the UA830
amplifies the received radio signals to compensate for insertion loss in
the coaxial cable. A gain selector switch adjusts for longer lengths of co­axial cable.

FEATURES

• Compatible with the Shure Model UR4 or ULX wireless
microphone receiver and the Shure Model UA845, or UA844
Antenna Distribution System

• Mountable on supplied desk-/wall-mount or on a microphone
stand

• Two-position gain selector switch to adjust for longer coaxial cable
lengths (3 dB position for cables under 7 1/2 m [25 ft], 10 dB
position for cables over 7 1/2 m [25 ft])

• Isolates antennas from cable interactions

• Extremely durable under the heaviest use

• Shure quality, ruggedness, and reliability

APPLICATION

IMPORTANT: DO NOT USE INFORMATION

This device must not be used with antennas or other

devices that have a DC short circuit at

external (BNC) DC Block. A suitable BNC

their feed point without using an

DC Block is the JFW Industries Model

50DB-002.

Techniques will vary from setup to setup according to different situa-

tions. Usually, the antennas should be

as far apart as possible, creating
the widest RF field and ensuring signal reception. In a diversity system
such as the Shure Model UR4, as in the example in Figure 1, Shure rec­ommends that the two antennas be positioned at 45° a

ngles pointing
away from each other (Figure 1). This way, the system is guaranteed the
widest possible RF field, minimizing the chance of the RF signal drop­ping out. As a general recommendation, po

sitioning should be tested

and adjusted for each individual setup.

IN A DIVERSITY SYSTEM

FIGURE 1

2

INSTALLATION

TO ANTENNA

3.

antenna A in

12.7V out
150mA

receiver outputs

200Ω

lift

GND

line

mic

antenna B in

12.7V out
150mA

network

activity

networking

ethernet

RJ-45

TO RECEIVER

ANTENNA IN

UR4 WIRELESS
RECEIVER

WALL MOUNTED

MIC-STAND MOUNTED

1. Thread the Shure Model UA830 unit on the supplied stand (Figure

2), or on a 5/8 in.-27 thread microphone stand.

2. Connect the antenna to the TO A

NTENNA port on the Model UA830

unit (Figure 2).

3. Using 50 W low-loss coaxial cable (purchased separately, Shure
25 or UA850 or UA8100 recommended), connect the TO

UA8
RECEIVER port of the UA830 to the Shure Model UR4 or ULX
wireless receiver or UA845, or UA844 Antenna Distribution System
(see Figure 3 for UR4 Receiver example).

4. If a second UA830 Line Amplifier is nee

ded for extremely long cable
runs (over 15 m [50 ft]), (Shure model UR4 and UA845 only) repeat
steps 1 to 3. See Adjusting for Different Cable Lengths.

2.

1.

ATTACHING THE BASE AND ANTENNA

FIGURE 2

CONNECTING THE RECEIVER

FIGURE 3

3

ADJUSTING FOR DIFFERENT CABLE LENGTHS

+10 dB

+3 dB

TO ANTENNA

INPUT

TO

TO

TO

*SEE NOTE ON CABLES

RECEIVER

RECEIVER

TO

ANTENNA

ANTENNA

ADJUSTING FOR DIFFERENT CABLE LENGTHS

FIGURE 4

The longer the coaxial cable connecting the UA830 unit and the receiver

ribution amplifier, the greater the possibility for signal loss. The

or dist
UA830 comes with a GAIN switch that can compensate for signal loss
in longer cables. Shure recommends using the Shure UA825 or UA850
or UA8100 coaxial cable when remote mounting antennas. NOTE: Use

Ω low-loss cables (RG-8 or equivalent).

only 50

Set the switch according to these guidelines:

• UA825 Extension Cable (7.6 m [25 ft])-Set GAIN switch in 3 dB
position.
UA850 Extension Cable (15.2 m [50 ft])-Set GAIN switch in 10

•
dB position.

• UA8100 Extension Cable (30.4 m [100 ft])-Set GAIN switch in
10 dB position.

• If over 15.2 m (50 ft) is required, a maximum of two UA830's
(Shure model UR4 and UA845 only) may be chained together.
See Figure 5. The Gain switches for each UA830 must be
adjusted separately. No more than two may be chained.

CHAINING TWO UA830’s

FIGURE 5

*To maintain Shure UA825 and UA850 or UA8100 cables in top
condition in permanent installations:

• 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 cables in permanent outdoor installations

Do not expose cables to extreme mois

•

4

ture

SPECIFICATIONS

RF Frequency Range

UA830A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 782-810 MHz

UA830KK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 838-862 MHz

UA830C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800-830 MHz

UA830D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 774-782 MHz

UA830UB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 692-716 MHz

UA830WB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470-900 MHz

UA830USTV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470-698 MHz

UA830X. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 944-952 MHz

Power Consumption (12 Vdc)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.6 to 0.72 W

Signal Gain

Gain switch at 3 dB: . . . . . . . . . . . . . . . . . . . . . . . .3.0 dB ± 2.0 dB

Gain switch at 10 dB: . . . . . . . . . . . . . . . . . . . . . . . 10 dB ± 2.

Third Order Intercept Point (3 OIP)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 dBm Min.

Connectors

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Female, BNC-type

Dimensions (without accessories)

66.7 mm high x 31.75 mm wide x 112 mm deep (2.625 x 1.250 x 4.40
inches), 108 mm (4.25 in.) high w/mounting stand

Case

. . . . . . . . . . . . . . . . . . . . . . . . . Aluminum die-casting, black painted

Swivel Adapter

Positive-action, break-resistant, adjustable from 0° to 90°, with standard
5/8 in.-27 thread

Net Weight (without cable)

Without mounting stand: . . . . . . . . . . . . . . . . . . . . .0.28 kg (9.8 oz)

With mounting stand: . . . . . . . . . . . . . . . . . . . . . . .0.42 kg (14.8 oz)

0 dB

REPLACEMENT PARTS

Mounting Base ....................................................................A13HDB

For additional service or parts infor
vice department at 1-800-516-2525. Outside the United States, please
c

ontact your authorized Shure Service Center.

mation, please contact Shure's Ser-

CERTIFICATION

UA830: Eligible for CE Marking. Meets requirements of EMC Standard
EN 301 489 Parts 1 and 9. Meets the essential requirements of the Eu­ropean R&TTE Directive 99/5/EC.

THIS RADIO EQUIPMENT IS INTENDED FOR USE IN

ICAL PROFESSIONAL ENTERTAINMENT AND SIMI-

MUS
LAR APPLICATIONS.

NOTE: THIS RADIO APPARATUS MAY BE CAPABLE OF

OPERATING ON SOM

AUTHORIZED IN YOUR REGION. PLEASE CONTACT

YOUR NATIONAL AUTHORITY TO OBTAIN

INFORMATION ON AUTHORIZED FREQUENCIES FOR

WIRELESS MICROPHONE PRODUCTS IN YOUR

E FREQUENCIES NOT

REGION.

5

SHURE Incorporated http://www.shure.com
United States, Canada, Latin America, Caribbean:
5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.
Phone: [phone]
U.S. Fax: [phone]
Intl Fax: [phone]
Europe, Middle East, Africa:
Shure Europe GmbH, Phone: [phone]
Fax: [phone]
Asia, Pacific:
Shure Asia Limited, Phone: [phone]
Fax: [phone]

SHURE Incorporated http://www.shure.com
États-Unis, Canada, Amérique latine, Caraïbes :
5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.
Téléphone : 847-600-2000
Télécopie aux États-Unis : 847-600-1212
Télécopie internationale : 847-600-6446
Europe, Moyen-Orient, Afrique :
Shure Europe GmbH, Téléphone : 49-7131-72140
Télécopie : 49-7131-721414
Asie, Pacifique :
Shure Asia Limited, Téléphone : 852-2893-4290
Télécopie : 852-2893-4055

SHURE Incorporated http://www.shure.com
Estados Unidos, Canadá, Latinoamérica, Caribe:
5800 W. Touhy Avenue, Niles, IL 60714-4608, EE.UU.
Teléfono: 847-600-2000 (dentro de los EE.UU.)
Fax: [phone]
Fax internacional: 847-600-6446
Europa, Medio Oriente, Africa:
Shure Europe GmbH, teléfono: 49-7131-72140
Fax: [phone]
Asia, Pacífico:
Shure Asia Limited, teléfono: 852-2893-4290
Fax: [phone]

SHURE Incorporated http://www.shure.com
Stati Uniti, Canada, America latina, Caraibi:
5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.
Numero telefonico: 847-600-2000
Fax U.S.A.: 847-600-1212
Fax internazionale: 847-600-6446
Europa, Medio Oriente, Africa:
Shure Europe GmbH, numero telefonico: 49-7131-72140
Fax: [phone]
Asia, Pacifico:
Shure Asia Limited, numero telefonico: 852-2893-4290
Fax: [phone]