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Shure UA825 BNC-to-BNC Remote Antenna Extension Cable

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Description

Remote Antenna Extension Cable, BNC-to-BNC, RG8X/U type, 25' (7.5m). Read more

Features

  • Low-loss coaxial cable: Ensures minimal signal degradation over distance.
  • BNC male connectors: Standardized connectors for easy, secure connections.
  • 25 ft (7.6 m) length: Provides ample reach for remote antenna placement.
  • 50 Ohm impedance: Matches standard professional RF equipment requirements.
  • Flexible yet durable: Built for rugged, reliable use in professional environments.
  • Optimizes antenna placement: Allows antennas to be positioned for best signal reception.

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Remote Antenna Extension Cable, BNC-to-BNC, RG8X/U type, 25' (7.5m). Read more

Features

  • Low-loss coaxial cable: Ensures minimal signal degradation over distance.
  • BNC male connectors: Standardized connectors for easy, secure connections.
  • 25 ft (7.6 m) length: Provides ample reach for remote antenna placement.
  • 50 Ohm impedance: Matches standard professional RF equipment requirements.
  • Flexible yet durable: Built for rugged, reliable use in professional environments.
  • Optimizes antenna placement: Allows antennas to be positioned for best signal reception.

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About the Shure UA825 BNC-to-BNC Remote Antenna Extension Cable

The Shure UA825 is a high-quality, double-shielded coaxial cable assembly designed to extend the distance between a wireless receiver's antenna input and a remote antenna location. This specialized cable is a critical component in professional RF system deployment, allowing technicians to position antennas optimally for best reception—such as on a truss, microphone stand, or wall—while keeping the receiver rack in a secure, convenient location. The cable is terminated with straight BNC connectors on both ends, ensuring a secure, low-loss connection that maintains signal integrity over extended runs, which is essential for preserving the performance of high-gain antenna systems.

Constructed with precision, the cable features low-loss dielectric material and robust double shielding to minimize signal attenuation and effectively reject electromagnetic interference (EMI) and radio frequency interference (RFI). This construction is vital in environments dense with electronic equipment, such as concert stages or broadcast trucks, where clean RF signal transmission is paramount. The cable's flexibility and durable outer jacket make it suitable for both permanent installations and touring applications, where it may be repeatedly coiled and uncoiled. Standard lengths are chosen to provide common deployment distances without requiring field assembly or cutting.

For system integrators and live sound engineers, the UA825 cable is an indispensable accessory for building a reliable wireless infrastructure. Using the appropriate length of low-loss cable like the UA825 prevents the degradation of the carefully amplified signal from a remote antenna, ensuring that the full benefit of the antenna's gain and positioning is realized at the receiver. This directly contributes to a stronger, more stable wireless link, reducing the potential for dropouts and interference, and is a fundamental best practice in professional wireless system design.

Key Features

  • Low-loss coaxial cable: Ensures minimal signal degradation over distance.
  • BNC male connectors: Standardized connectors for easy, secure connections.
  • 25 ft (7.6 m) length: Provides ample reach for remote antenna placement.
  • 50 Ohm impedance: Matches standard professional RF equipment requirements.
  • Flexible yet durable: Built for rugged, reliable use in professional environments.
  • Optimizes antenna placement: Allows antennas to be positioned for best signal reception.

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Shure UA825 BNC-to-BNC Remote Antenna Extension Cable Specs

Cable Specifications
Cable Type
Double-Shielded Coaxial
Impedance
50 Ohms
Length
25 ft (7.6 m) Standard
Attenuation
Approx. 1.8 dB per 25 ft at 700 MHz
Connector Details
Connector Type
BNC
Connector Gender
Male on Both Ends
Connector Plating
Gold over Nickel
Crimp/Solder Type
Factory Crimped
Physical Construction
Outer Jacket
Flexible PVC
Minimum Bend Radius
1.0 in (25 mm)
Weight per 25 ft
Approx. 1.1 lb (0.5 kg)
Application Use
Primary Use
Antenna to Receiver Extension
Compatibility
50-Ohm BNC Systems

Key Features

  • Low-loss coaxial cable: Ensures minimal signal degradation over distance.
  • BNC male connectors: Standardized connectors for easy, secure connections.
  • 25 ft (7.6 m) length: Provides ample reach for remote antenna placement.
  • 50 Ohm impedance: Matches standard professional RF equipment requirements.
  • Flexible yet durable: Built for rugged, reliable use in professional environments.
  • Optimizes antenna placement: Allows antennas to be positioned for best signal reception.

Already own this item and want to sell it?

Click here to sell your item

FAQs about Shure UA825 BNC-to-BNC Remote Antenna Extension Cable

What is the Shure UA825?

The Shure UA825 is a 25-foot (7.6-meter) low-loss 50-ohm coaxial antenna extension cable terminated with male BNC connectors on both ends. It is designed to connect remote wireless receiving antennas or antenna distribution systems to receivers across medium distances.

What type of coaxial cable is used in the UA825?

It is built using heavy-duty, low-loss RG-8X/U 50-ohm coaxial cable. This grade provides significantly lower signal attenuation (loss) at UHF frequencies compared to standard consumer RG-58 cables.

What is the characteristic impedance, and why does 50 ohms matter?

The UA825 has a characteristic impedance of 50 ohms, which precisely matches the RF circuitry of professional wireless microphone systems. Using mismatched cable (such as standard 75-ohm television coaxial cable) creates RF reflections, standing waves, and noticeable signal loss.

How much signal loss occurs over this 25-foot run?

In the typical UHF range (around 500 to 700 MHz), a 25-foot run of RG-8X cable introduces approximately 2.0 to 2.5 dB of signal loss. This low level of attenuation is easily tolerated by most modern wireless receivers without requiring an in-line RF booster.

Does the UA825 pass DC bias power for active antennas?

Yes, the continuous center copper conductor and braided shield pass 12 Vdc bias power without interruption. This ensures compatibility with active directional antennas (like the UA874) and in-line RF amplifiers (like the UA830).

Which systems and accessories is the UA825 compatible with?

It is compatible with any wireless receiver, antenna distribution amplifier, or remote antenna fitted with standard 50-ohm BNC ports across brands like Shure, Sennheiser, and Lectrosonics. This includes popular distribution units like the Shure UA844+ and UA845.

Can multiple UA825 cables be linked together for longer runs?

Yes, two cables can be connected using a 50-ohm female-to-female BNC barrel adapter (such as the Shure WA340). However, as cable length increases to 50 feet or more, signal loss accumulates, making an in-line booster or lower-loss cable like RG-213 advisable.

Is the UA825 cable flexible enough for touring and field use?

Yes, the RG-8X construction features a stranded center conductor and a flexible outer PVC jacket that resists kinking and coils easily. It is durable enough for repeated setup and teardown on live touring stages, worship platforms, and broadcast trucks.

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