General Description
The Shure UA860 is a passive wide band UHF omnidirectional antenna. The
UA860 is weather resistant and suitable for temporary outdoor use. However,
long-term exposure to moisture should be avoided.
Features
• Greatly improves reception of wireless signal
• Omnidirectional dipole reception pattern
• Includes stand adapter, thread adapter, a 61cm (2ft) coaxial antenna
cable, and a 7.6m (25ft) coaxial antenna cable
Installation
• Connect the antenna to the receiver or distribution system using Shure
antenna cables (or any 50 ohm, low-loss coaxial cable, such as RG-8U).
• For cable runs exceeding 25 feet (7.6 meters), an in-line amplifier (Shure
UA830) may be required to compensate for signal loss.
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.
Selecting Antenna Cables
Use 50 ohm low-loss coaxial cable, such as RG-8U. Shure offers pre-termi-
nated 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.
Antenna Placement
Use the following guidelines when mounting antennas:
• Antennas and receivers must be from the same band.
• Mount antennas at least one wavelength (two feet) apart.
• Position antennas so there is nothing obstructing a line of sight to the
transmitter (including the audience).
• Keep antennas away from metal objects.
Important: Always perform a "walk around" test to verify coverage before
using a wireless system during a speech or performance. Experiment with
antenna placement to find the optimum location. If necessary, mark "trouble
spots" and ask presenters or performers to avoid those areas.
Specifications
RF Frequency Range
470 to 1100 MHz
Voltage Standing Wave Ratio (VSWR)
< 2:1 referenced to 50 Ω
Reception Pattern
Omnidirectional dipole
Connector
Female, BNC
Stand Adapter
Break resistant, with standard (UNS) 5/8 in.-27 thread
Dimensions
284 mm H x 39 mm dia.(11-3/16 X 1-9/16 in.)
Net Weight
without cable
275 g (9.72 oz.)
1/2©2017 Shure Incorporated
UA860SWB
Passive Omnidirectional Antenna
