SENNHEISER LogoA 1031-U Omnidirectional UHF Antenna
Instruction Manual

  1. SENNHEISER A 1031 U Omnidirectional UHF Antenna - Overview5/8″ internal thread for a stand (adaptor for a 3/8″ thread included)
  2. RF out socket (N-type)

Important safety instructions

  1. Read these safety instructions and the instruction manual of the product.
  2. Keep these safety instructions and the instruction manual of the product. Always include all instructions when passing the product on to third parties.
  3. Always include this instruction manual and the safety guide when passing the product on to third parties.
  4. Only use attachments, accessories and spare parts specified by the manufacturer.
  5. Do not attempt to open the product housing on your own. The warranty is voided for products opened by the customer.
  6. Refer all servicing to qualified service personnel. Servicing is required when the product has been damaged in any way, liquid has been spilled or objects have fallen into the product, when the product has been exposed to rain or moisture, does not operate normally, or has been dropped.
  7. Use the product only under the conditions of use listed in the specifications.
  8. Do not operate the product if it was damaged during transportation.
  9. Always run cables so that no one can trip over them.
  10. Keep the product and its connections away from liquids and electrically conductive objects that are not necessary for operating the product.
  11. Do not use any solvents or aggressive cleaning agents to clean the product.
  12. Caution: Very high signal levels can damage your hearing and your loudspeakers. Reduce the volume on the connected audio devices before switching on the product; this will also help prevent acoustic feedback.

Intended use
The product is designed for indoor and outdoor use.
The product can be used for commercial purposes.
It is considered improper use when the product is used for any application not named in the corresponding instruction manual.
Sennheiser does not accept liability for damage arising from improper use or misuse of this product and its attachments/accessories.
Before putting the products into operation, please observe the respective country-specific regulations!
Safety instructions for antennas
Use safety wires to protect the antennas against tipping/dropping.
The safety wires, rope terminations and coupling links must comply in their dimensioning and condition with the regulations and standards of the country in which they are used!

Manufacturer declarations

Sennheiser electronic GmbH & Co. KG gives a warranty of 24 months on these products.
For the current warranty conditions, please visit our website at or contact your Sennheiser partner.
Sennheiser Australia Pty Ltd provides a warranty of 24 months on these products.
For the current warranty conditions, visit Sennheiser website:
New Zealand:
Sennheiser goods come with guarantees that cannot be excluded under Australian and New Zealand Consumer law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of  acceptable quality and the failure does not amount to a major failure.
This warranty is in addition to other rights or remedies under law. Nothing in this warranty excludes, limits or modifies any remedy available to be consumer which is granted by law.
To make a claim under this contract, raise a case via Sennheiser website
New Zealand:
All expenses of claiming the warranty will be borne by the person making the claim.
Sennheiser international warranty is provided by: Sennheiser Australia Pty Ltd (ABN 68 165 388 312) Level 14, Tower A Zenith Building, 821 Pacific Highway, Chatswood NSW 2067, Australia
In compliance with the following requirements

EU: • WEEE Directive (2012/19/EU) SENNHEISER A 1031 U Omnidirectional UHF Antenna - Icon
UK: • WEEE Regulations (2013)

Notes on disposal

The symbol of the crossed-out dumpster on the product, the (rechargeable) battery (if applicable) and/or the packaging indicates that these products must not be disposed of with normal household waste, but must be disposed of separately at the end of their service life. For the packaging, follow the regulations in your country for separating waste. Improper disposal of packaging materials can be harmful to your health and the environment.
The separate collection of waste electrical and electronic equipment, (rechargeable) batteries (if applicable) and packaging is intended to promote reuse and recycling and to prevent negative impacts on public health and the environment, for example due to hazardous substances contained in these products. At the end of their service life, recycle electrical and electronic equipment and (rechargeable) batteries so that their materials can be reused and to prevent environmental pollution.
If (rechargeable) batteries can be removed without destroying them, you are obliged to dispose of them separately (see the product’s operating instructions for information on how to remove the batteries safely). Be especially careful when handling (rechargeable) batteries containing lithium, as these pose special hazards, such as the risk of fire and/or health risks if button cells are swallowed. Reduce battery waste as much as possible by using longer-life batteries or rechargeable batteries.
Further information on the recycling of these products can be obtained from your municipal administration, from the municipal collection points, or from your Sennheiser partner. You may also be able to return electrical or electronic equipment to your distributor, if they are legally required to do so. By disposing of your batteries properly, you are helping to protect public health and the environment.
UK Declaration of conformity

  • RoHS Regulations (2012)
  • Radio Equipment Regulations (2017)

Importer: Sennheiser UK Ltd.
Pacific House, Third Avenue, Globe Park, Marlow
Buckinghamshire SL7 1EY, United Kingdom
EU Declaration of conformity

  • RoHS Directive (2011/65/EU)

Hereby, Sennheiser electronic GmbH & Co. KG declares that the radio equipment type A 1031-U is in compliance with Directive 2014/53/EU.
The full text of the EU declaration of conformity is available at the following internet address:
Statements regarding the FCC and Industry Canada rules
This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions:

  1. This device may not cause harmful interference, and
  2. This device must accept any interference received, including interference that may cause undesired operation.

Contact information:
Sennheiser Electronic Corporation
1 Enterprise Drive, Old Lyme, CT 06371


UK VONYX 170 798 SWA SERIES Active Subwoofer - Icon
China SENNHEISER A 1031 U Omnidirectional UHF Antenna - Icon 1


Frequency range 430 MHz − 960 MHz
Apex angle (horizontal) 360°
Deviation from circular radiation < 3 dB
Gain 0 dB
Connector BNC socket, 50 Ω
Max. input power 10 W
DC input resitance ≥ 1 MΩ
Ambient temperature -20 °C − +80 °C
Relative air humidity max. 95% at 40 °C  (non-condensing)
Dimensions 270 x 130 x 35 mm
Weight (with booster) approx. 150 g
Mounting connection 5/8″ thread / adaptor to 3/8″

SENNHEISER LogoSennheiser electronic GmbH & Co. KG
Am Labor 1, 30900 Wedemark,
Printed in Germany, Publ.
08/22, 583950/A03

Documents / Resources

SENNHEISER A 1031-U Omnidirectional UHF Antenna [pdf] Instruction Manual
A 1031-U, Omnidirectional UHF Antenna, UHF Antenna, Omnidirectional Antenna, Antenna


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