Shure UA864 Manuel utilisateur
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UA864 -- Wall-Mounted Active Directional
Antenna
General Description
The UA864 antenna provides active directional RF coverage in an easy-to-install, low-profile enclosure that can be
mounted on walls, ceilings, or metal surfaces with improved reception. The paintable, neutral white housing allows
the antenna to blend into corporate or classroom settings. The 4-position selectable gain switch provides attenua-
tion and boost settings to match the antenna to the environment. UHF variants provide wideband RF coverage.
Features
•Low-profile design
•Wall or ceiling mounting options
•Wideband performance (UHF models only)
•Four-position gain switch
•Metal surface mounting capability
•LED indicators for gain settings
•Neutral white, paintable housing
Positioning Antennas for Diversity Reception
The UA864 is a polarized antenna and must be oriented correctly to optimize reception for each transmitter type.
The gain switch indicates the antenna's orientation. Position the antennas using the following guidelines:
Note: The antenna's inner construction may differ for each model variation.
Handheld and Bodypack Transmitters (vertical)
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Boundary Microphones (horizontal)
Mixed Transmitter Types (vertical and horizontal)
Antenna Placement
Use the following guidelines when mounting antennas:
•Antennas and receivers must cover the same frequency range.
•Mount antennas at least four feet apart for optimal diversity.
•Position antennas so there is nothing obstructing a line of sight to the transmitter (including the audience).
Find More Information Online
For more information, visit http://www.shure.com
Installation
Mounting on a Wall or Ceiling
The mounting plate installs directly to a wall, ceiling, or a standard junction box.
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Required Equipment
•#8 or #6 screws
•Flat washers
•Lock washers
•Drill
•Screwdriver
Installation Steps
1. Align the mounting plate:
Junction box mounting: Align the mounting plate with the junction box so that at least two screws can be
used.
Wall mounting: Use the mounting plate as a template to mark the location for the holes on the mounting sur-
face. Drill the holes accordingly.
2. Secure the mounting plate to the surface with the washers as shown (CAUTION: Do not over-tighten screws).
3. If running RF cable from inside the wall, guide it through the opening in the mounting plate and connect the ca-
ble to the antenna output.
4. Position the antenna mounting posts over the keyhole slots in the mounting plate and slide it into the locked
position.
Mounting to a wall or ceiling
Mounting to an electrical junction box
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Securing the antenna to the mounting plate
Routing the Cable
The output connector can be routed through ports 1or 2on the antenna. When connecting to an RF cable in the
wall, run the cable through the opening in the mounting plate.
Rotating the Cover
The cover can be detached and rotated in any direction for a matched appearance when using multiple antennas.
1. Remove the screws holding the cover in place from the back of the antenna
2. Remove the cover and rotate to the desired position
3. Replace the screws to secure the cover
Painting the Antenna
The cover of the antenna can be painted to match the installation environment. Use the following guidelines when
painting the antenna cover:
•Remove the antenna cover before painting
•Only use non-metallic paint, as any metallic content may interfere with RF reception
•Allow the paint to dry completely before reinstalling the cover
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•Avoid painting in the screw holes
Warning: Do not touch the internal components of the antenna when the cover is removed.
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 and for LED function-
ality. If these devices do not supply bias voltage, the Shure UABIAST inline power supply can be used.
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 Set
ting (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 trans-
mitter is an appropriate distance from the antenna.
0 (Default) Suitable for typical room installations and provides enough RF gain in most cases when ca-
ble 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 antenna to oper-
ate and for illuminating the LEDs.
Selecting Antenna Cables
Use 50 ohm low-loss coaxial cable, such as RG-8U. Shure offers pre-terminated antenna cables ranging from 6 to
100 feet.
NOTE: When ordering cables from Shure, select the low-loss "Z" models (available for longer cables) when using
frequency bands above 1000 MHz.
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Cable Maintenance
To maintain top performance for 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.
Specifications
Connector Type
BNC, Female
Impedance
50 Ω
Power Requirements
10 to 15 V DC bias from coaxial connection, 75 mA
RF Frequency Range
UA864US 470–698 MHz
UA864LO 470–698 MHz
UA864HI 530–790 MHz
UA864A 650–952 MHz
UA864Z16 1240–1260 MHz
UA864Z17 1492–1525 MHz
UA864Z18 1785–1805 MHz
Reception Pattern
3 dB Beam Width at center frequency
UA864US 100 degrees
UA864LO 100 degrees
UA864HI 95 degrees
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UA864A 90 degrees
UA864Z16 70 degrees
UA864Z17 70 degrees
UA864Z18 70 degrees
Third-order Overload Intercept Point (OIP3)
>30 dBm
Antenna Gain
On Axis, 0 dB Gain Setting at center frequency
UA864US 2.5 dBi
UA864LO 2.5 dBi
UA864HI 3.0 dBi
UA864A 5.5 dBi
UA864Z16 7.5 dBi
UA864Z17 6.5 dBi
UA864Z18 4.5 dBi
Signal Gain
±1 dB, Switchable
+10 dB0 dB−10 dB−20 dB
RF Overload LED Threshold
−15 dBm
Dimensions
176 x 176 x 51 mm (H x W x D)
Weight
UA864 487 g (17.2 oz.)
UA864Z 454 g (16 oz.)
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Operating Temperature Range
−7°C (20°F) to 49°C (120°F)
Storage Temperature Range
−29°C (-20°F) to 74°C (165°F)
Certifications
This product meets the Essential Requirements of all relevant European directives and is eligible for CE marking.
The CE Declaration of Conformity can be obtained from: www.shure.com/europe/compliance
Authorized European representative:
Shure Europe GmbH
Headquarters Europe, Middle East & Africa
Department: EMEA Approval
Jakob-Dieffenbacher-Str. 12
75031 Eppingen, Germany
Phone: +49-7262-92 49 0
Fax: +49-7262-92 49 11 4
Email: [email protected]
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Polar Pattern
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