SHURE UA830 UHF In-Line RF Amplifier User Manual
- June 6, 2024
- Shure
Table of Contents
SHURE UA830 UHF In-Line RF Amplifier User Manual
GENERAL
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 unit receives power through its output port from the Shure receiver or 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 their feed point without using an external (BNC) DC Block. A
suitable BNC DC Block is the JFW Industries Model 50DB-002.
Techniques will vary from setup to setup according to different situations. 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° angles 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, positioning should be tested and adjusted for each individual setup.
FIGURE 1: IN A DIVERSITY SYSTEM
INSTALLATION
-
Thread the Shure Model UA830 unit on the supplied stand (Figure 2), or on a 5/8 in.-27 thread microphone stand.
FIGURE 2: ATTACHING THE BASE AND ANTENNA -
Connect the antenna to the TO ANTENNA port on the Model UA830 unit (Figure 2).
-
Using 50 W low-loss coaxial cable (purchased separately, Shure UA825 or UA850 or UA8100 recommended), connect the TO 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).
FIGURE 3: CONNECTING THE RECEIVER -
If a second UA830 Line Amplifier is needed 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.
ADJUSTING FOR DIFFERENT CABLE LENGTHS
FIGURE 4: ADJUSTING FOR DIFFERENT CABLE LENGTHS
The longer the coaxial cable connecting the UA830 unit and the receiver or distribution amplifier, the greater the possibility for signal loss. The 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 only 50Ω low-loss cables (RG-8 or equivalent).
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.
FIGURE 5: CHAINING TWO UA830’s
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 moisture
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 ±
2.0 dB
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)
REPLACEMENT PARTS
Mounting Base …………………………………………………………..A13HDB
For additional service or parts information, please contact Shure’s Service
department at 1-800-516-2525. Outside
the United States, please contact your authorized Shure Service Center.
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 MUSICAL PROFESSIONAL ENTERTAINMENT AND SIMILAR APPLICATIONS.
NOTE: THIS RADIO APPARATUS MAY BE CAPABLE OF OPERATING ON SOME FREQUENCIES NOT AUTHORIZED IN YOUR REGION. PLEASE CONTACT YOUR NATIONAL AUTHORITY TO OBTAIN INFORMATION ON AUTHORIZED FREQUENCIES FOR WIRELESS MICROPHONE PRODUCTS IN YOUR REGION.
EU DECLARATION OF CONFORMITY
We, Shure Incorporated of 5800 Touhy Avenue Niles, Illinois, 60714-4608 U.S.A.
Phone: 847-600-2000
Web: www.Shure.com
Declare under our sole responsibility that the following product
Model: UA830
Description: UHF Receiver Amplifier
conforms to the essential requirements and other relevant previsions of the R&TTE Directive (1999/5/EC).
The product complies with the following product family, harmonized or
national standards:
EN 301 489-1 V1.4.1 (2002-08)
EN 301 489-9 V I.2.1 (2002-08)
The technical documentation is kept at:
Shure Incorporated, Corporate Quality Engineering Division SHURE Europe
Cimbil, EMEA Approval
Manufacturer: Shure Incorporated
Signed: Date: 16 November 2006
Name and Title: Craig Kozokar, EMC Project Engineer, Corporate Quality
Engineering Division
European Representative: SHURE Europe GmbH
Signed:
Date: 16 November 2006
Name and Title: Wolfgang Bilz, Dipl, Ing. (FH), EMEA Approval
SHUR Europe GmbH
Headquarters Europe, Middle East & Africa
Wannenticker Str. 28
D-74078 Heilbronn, Germany
Phone: +49 – (0)7131 -7214-0
Fax: +49 – (0)7131 – 7214 – 14
CONTACT
SHURE Incorporated http://www.shure.com
United States, Canada, Latin America, Caribbean:
5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.
Phone: 847-600-2000
U.S. Fax: 847-600-1212
Intl Fax: 847-600-6446
Europe, Middle East, Africa:
Shure Europe GmbH, Phone: 49-7131-72140
Fax: 49-7131-721414
Asia, Pacific:
Shure Asia Limited, Phone: 852-2893-4290
Fax: 852-2893-4055
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: 847-600-1212
Fax internacional: 847-600-6446
Europa, Medio Oriente, Africa:
Shure Europe GmbH, teléfono: 49-7131-72140
Fax: 49-7131-721414
Asia, Pacífico:
Shure Asia Limited, teléfono: 852-2893-4290
Fax: 852-2893-4055
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: 49-7131-721414
Asia, Pacifico:
Shure Asia Limited, numero telefonico: 852-2893-4290
Fax: 852-2893-4055
References
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