Shure ULX Wireless System User manual

ULX
Shure ULX Wireless
The Shure wireless system, ULX, user guide.
Version: 3.1 (2020-L)

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Table of Contents
ULX Shure ULX Wireless 4
ULX System Components 4
Antennas 6
Active Antennas 6
Antenna Combiners and Accessories 6
Rack Installation 8
Rackmount Options 8
Power 9
Power switch 10
Power Connector 10
Batteries 10
Installation 10
Battery Life 10
Power/Mute Switch 11
Power Indicator (BAT) 11
Battery Indicator 11
Single System 11
Multiple Systems 12
Automatic Frequency Scan 12
Channel Scan 12
Group Scan (ULXP4 only) 13
Changing Group and Channel 13
Change Channel 14
Change Group 14
Wireless Indicators 14
RF Indicator 14
Antenna Indicator 15
Frequency Display 15
TV 15
Frequency Master List Mode 15
Squelch (ULXP4 Only) 16
Audio Output 16
Audio Output Connectors 16
Receiver Output Level 17
PEAK Icon 17
Transmitter Gain 18
ULX1 18
ULX2 19
Locking the Receiver (ULXP4 Only) 19
Unlocking 19
Locking the Transmitter 20
Lock/Unlock Power (On) 20
Lock/Unlock Frequency 20
Troubleshooting 20
Tips for Improving System Performance 21
Parts and Accessories 21
Included Accessories 21
Optional Accessories 21
Replacement Parts 22
Certifications 23
Important Product Information 23
LICENSING INFORMATION 24
Information to the user 24

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Australia Warning for Wireless 24
Wiring Diagram 24
Specifications 25
Frequencies for European Countries 27

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ULX 
Shure ULX Wireless
ULX System Components
All systems include either a ULXS4 Standard Diversity Receiver or ULXP4 Professional Diversity Receiver.
Bodypack systems include a choice of lavalier, headworn, or instrument microphones.
Handheld systems include a choice of interchangeable microphone heads.

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Guitarsystemsincludea1/4”tomini4-pincable.
ULXP4 receivers include rack-mounting hardware.

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Antennas
Active Antennas
TheantennaconnectorsontheULXreceiverprovide12VDCforactivecircuitantennas.
Caution: Use only Shure antenna accessories to ensure the best operation. Do not use splitters, combiners, or antennas that provide a DC ground, as this can
cause the receiver to function improperly.
Antenna Combiners and Accessories
The supplied antennas can be connected directly to the BNC-type ANTENNA connectors. However, optional antenna mounting
accessories from Shure can improve reception and reduce rack clutter. Use the following guidelines:
Antennas and receivers must be from the same band.
Mount antennas more than 40 cm (16 inches) apart.
Use Shure UA825 or UA850 low-loss coaxial antenna cable (or any 50 ohm, low-loss cable such as RG-8U).
Visit www.shure.com for more information on wireless antenna accessories.
Coaxial Cables

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Front Mount Antenna Kit
1/2-Wave Antenna included with ULXP4 systems
Inline Antenna Amplifier
for long antenna cable runs
Antenna Rack Mount Kit

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Active Directional Antenna
for more focused reception
Distribution Amplifier
combines antennas and power supplies for multiple receivers
Rack Installation

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Rackmount Options
The following shows rackmounting options for one to four receivers and lists the required accessories.
Power

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Power switch
Power Connector
ConnectusingthesuppliedACadapterorcertified14–18Vdc(550mA)replacementsupply.
Batteries
Installation
Battery Life
Use only 9V alkaline or lithium batteries. Typical life for common types of 9V batteries are listed below. For detailed information
on battery performance, contact Shure Applications Engineering.
Recommended:
Lithium (16 hours)
Alkaline (8 hours)
Not recommended:
Carbon-Zinc (½ hour)

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Rechargeable Ni-Cd (2 hours)
Rechargeable Ni-MH (2½ hours)
Note:
Battery life varies with type and manufacturer.
Batteries stored for more than a year or stored in excessively hot environments may experience a higher failure rate.
Do not use rechargeable batteries with a fully-charged rating of greater than 9 V (for example, 9.6 V).
Transmitters require a minimum of 6 V to operate.
Power/Mute Switch
Turn transmitter off to mute the microphone or conserve battery power.
Use the lock feature to avoid accidental muting of the microphone during a performance.
Power Indicator (BAT)
Green: ready
Red: battery power low
Note: Remaining battery life varies with battery type.
Battery Indicator
Both the transmitter and receiver LCD shows approximate operation time remaining for the transmitter.

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Single System
If you encounter wireless interference, perform a channel scan on the receiver and use the selected channel. You usually do
not need to change the group.
Multiple Systems
To maximize performance, set all wireless systems to different channels from the same group. These channels are selected to
work well together.
Follow these steps when using group and channel scan with multiple systems.
Power off all system transmitters. Turn on all other wireless or digital devices as they would be during the performance
or presentation.
On the first receiver: Perform a group scan. Note the selected group, then use channel scan to find the first open
channel in that group.
Power on the first transmitter and set it to the selected group and channel.
IMPORTANT: Leave the first transmitter powered on while setting up the next system.
For each additional system: Set to the same group as the first. Perform a channel scan and set the receiver and
transmitter to the selected channel.
Leave each transmitter on while setting up additional systems.
Note:
Keep each transmitter at least two meters (6 feet) apart.
If using systems from different bands, set up all systems from the same band together.
Tip: To reduce setup time, you can manually set up the group and channels before arriving at the venue. Visit www.shure.com for a list of groups and channels
that are anticipated to be free of interference in a particular city or region.
Automatic Frequency Scan
Channel Scan
This feature scans for an open channel in the selected group.

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Group Scan (ULXP4 only)
The "group scan" feature on the ULXP helps maximize the number of systems you can install at a single venue. It scans for
wireless interference and finds the group with the most open channels.
Changing Group and Channel
If you encounter wireless interference, set the receiver and transmitter to a different channel or group.

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Change Channel
Change Group
* Note: You can reverse the scroll direction by holding SET and pressing MODE.
Wireless Indicators
RF Indicator
Indicates wireless activity over the selected channel.
Note: Whentheantennaandbatteryindicatorsareilluminated,theRFindicatorshowssignalstrengthfromthetransmitter.Otherwise,itisshowinginterfer-
ence from another source. Select a different channel.

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Antenna Indicator
This indicator shows which antenna is receiving the strongest signal from the transmitter.
Frequency Display
TV
For models sold in the United States only. Displays the TV channel occupied by the selected frequency.
Frequency Master List Mode
Master List mode offers more precise frequency selection for larger, multiple-system installations.
Enter Master List mode on the receiver or transmitter by holding down the SETbuttonfor10seconds.SetGROUPandCHAN-
NEL as you would in normal mode.

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Note: The unit must remain in Master List mode to operate at the selected frequency.
Exit Master List mode by holding the SET button for 10 seconds.
Squelch (ULXP4 Only)
The factory setting offers the optimum performance for most installations.
Increasing squelch filters out all but the highest quality signal, but this decreases operating range. Decreasing squelch extends
the operating range, but can increase signal noise.
Audio Output
Audio Output Connectors
Balanced XLR: Connect to a mixer or other professional audio input. Use the MIC/LINE switch to adjust for microphone or
line-level inputs.
Unbalanced 6.35 mm (1/4"): Connect to high impedance inputs, such as a guitar amplifier.
Note: The LINE/MIC switch does not affect the 6.35 mm (1/4") jack.

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Receiver Output Level
Adjusts the level of the receiver's audio outputs.
PEAK Icon
This icon appears when the input signal overloads the transmitter. The icon is displayed for 2 seconds after input overload is
detected.

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Transmitter Gain
For best audio quality, adjust transmitter gain so only the green and yellow TX AUDIO LEDs flicker. (Occasional illumination of
the red LED is okay.)
Green = nominal
Yellow = peak
Red = overload
ULX1
Settheattenuator(pad)switchto0dBformicrophonesand–20dBforguitars.(Somelowoutputinstrumentsmaynot
need attenuation.)
Adjust gain control as necessary.

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ULX2
Fully clockwise for quiet to normal vocal performance.
Halfway counterclockwise for loud vocal performance.
Fully counterclockwise for horn or percussive instruments.
Locking the Receiver (ULXP4 Only)
This feature prevents accidental setting changes.
Unlocking
Hold the SET button while turning the control wheel left, right, left.
Note: If LEVEL flashes on the LCD, decrease the LEVELcontroltocontinue.Thisfeaturesafeguardsagainstsuddenlevelincreaseswhenthelockisre-
moved.

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Locking the Transmitter
Lock/Unlock Power (On)
Hold SET and MODE for four seconds or until the lock icon appears.
Lock/Unlock Frequency
Hold the SET button while powering on the transmitter.
Troubleshooting
No power: Check battery and power supply connections and voltage. Check the power switch on the transmitter.
The LCD displays "E0 00" or similar code: Exit master list mode by holding the SET button for ten seconds.