Securiflex RG11 Coaxial Cable | LSZH, UV, 7/0.40, 75 Ohm | Black (Per Metre)

FAQs

Key Features

• High frequency low loss RG11 with stranded tinned copper conductor
• UV resistant LSZH jacket ideal for public buildings and outdoor use
• Gas injected foam dielectric for superior performance versus solid PE

Introduction

The Securi-Flex RG11 Coaxial Cable (SFX/RG11-LSZH-BLK-1) is a high-performance, low-loss coaxial cable designed to carry CCTV, TV, and satellite signals over extended distances. Featuring a stranded tinned copper conductor (7 x 0.40mm) and significantly larger diameter (10.30mm) compared to RG59 or RG6 cables, RG11 provides superior signal transmission with minimal loss, making it the ideal choice for long cable runs, high-resolution video applications, and professional installations requiring maximum signal quality.

Manufactured with advanced gas injected foam dielectric technology, this RG11 cable delivers substantially better mechanical, electrical, and aging performance compared to cables with solid PE dielectric. The gas injected foam construction reduces signal loss, improves high-frequency performance, and provides better impedance consistency along the cable length. The cable features both foil and braided copper screening for enhanced shielding performance and superior interference rejection, ensuring clean signal transmission even in electrically noisy environments.

The UV-resistant LSZH (Low Smoke Zero Halogen) outer jacket provides critical fire safety benefits for public buildings and spaces, as it will not emit toxic gases if the cable catches fire. The UV resistance makes this cable suitable for outdoor installations and exposed applications where standard PVC cables would degrade over time. With an extremely low DC resistance of just 7.0Ω/km (compared to 42-48Ω/km for RG59), an extended operating temperature range of -40°C to 70°C, and CPR Fca fire rating compliance, this RG11 LSZH cable represents the professional choice for demanding signal transmission applications where performance, safety, and longevity are paramount. Supplied per metre, it offers flexibility for custom length requirements.

Features

• High frequency, low loss cable for superior signal transmission
• RG11 specification provides significantly lower signal loss than RG59 or RG6
• Stranded tinned copper conductor (7 x 0.40mm) for flexibility and reliability
• 10.30mm overall diameter for professional-grade performance
• Gas injected foam dielectric for superior performance
• Better mechanical properties compared to solid PE dielectric
• Better electrical properties and lower signal loss
• Improved aging performance and long-term stability
• UV resistant LSZH (Low Smoke Zero Halogen) outer jacket
• Will not emit toxic gases if cable catches fire
• Ideal for use inside public buildings and spaces
• UV resistance suitable for outdoor and exposed installations
• Both foil and braided copper screen for dual shielding
• Enhanced performance and interference rejection
• Superior shielding compared to single-screen cables
• Extremely low DC resistance: 7.0Ω/km
• Significantly lower than RG59 (42-48Ω/km)
• Enables very long cable runs with minimal signal loss
• 75Ω ±3Ω impedance for standard video signal transmission
• 67pF/m capacitance for consistent electrical performance
• Extended operating temperature range: -40°C to 70°C
• Solid PE insulation for signal consistency
• White insulation colour for easy identification
• 3.00mm insulation thickness for excellent dielectric properties
• Black LSZH outer jacket (RAL 9005)
• 1.20mm jacket thickness for durability and protection
• Designed for CCTV, TV and satellite signal transmission
• Ideal for long cable runs requiring minimal signal loss
• Perfect for high-resolution CCTV and HD video over coax
• Suitable for satellite TV and terrestrial TV distribution
• CPR Fca fire rating classification
• CE 2014/30/EU compliant
• RoHS2 2011/65/EU compliant
• LVD 2014/35/EU compliant
• Supplied per metre for custom length requirements
• Professional grade quality for demanding applications

Frequently Asked Questions

What is RG11 cable and how does it differ from RG59 or RG6?

RG11 is a larger diameter (10.30mm), low-loss coaxial cable designed for long cable runs and professional applications. The key differences are: RG11 has a much thicker center conductor and larger overall diameter compared to RG59 (6.10mm) or RG6 (typically 6.9mm). This results in dramatically lower signal loss – RG11 has DC resistance of just 7.0Ω/km compared to 42-48Ω/km for RG59. This means RG11 can transmit signals over much longer distances with minimal loss. For example, where RG59 might support CCTV runs of 200-300 metres, RG11 can extend this to 500 metres or more. RG11 is the professional choice for long runs, high-resolution video, satellite TV distribution, and any application where signal quality over distance is critical.

What is gas injected foam dielectric and why is it better?

Gas injected foam dielectric is an advanced insulation technology where gas bubbles are injected into the polyethylene insulation during manufacturing, creating a foam structure rather than solid plastic. This provides several significant advantages: lower signal loss at high frequencies because the foam has better dielectric properties than solid PE; improved mechanical flexibility while maintaining structural integrity; better aging performance with more stable electrical characteristics over time; and more consistent impedance along the cable length. The gas injected foam construction makes this RG11 cable perform significantly better than equivalent cables with solid PE dielectric, particularly for long runs and high-frequency applications like HD CCTV and satellite signals.

What does LSZH mean and why is it important?

LSZH stands for Low Smoke Zero Halogen. This refers to the special jacket material that, in the event of a fire, will not emit toxic halogen gases (like chlorine or bromine) and produces significantly less smoke than standard PVC cables. This is critically important for public buildings, enclosed spaces, and areas where people may need to evacuate in a fire. The reduced smoke improves visibility for safe evacuation, and the absence of toxic halogen gases reduces health risks to occupants. Many building regulations and fire safety codes specifically require LSZH or similar low-toxicity cables in public access areas, schools, hospitals, and transportation facilities. The UV resistance of this LSZH compound also makes it suitable for outdoor use where standard LSZH cables might degrade.

Why does this cable have both foil and braided screens?

The dual screening with both aluminum foil and copper braid provides comprehensive shielding against different types of interference. The aluminum foil provides 100% coverage against high-frequency interference and prevents signal leakage. The copper braid provides excellent low-frequency shielding, mechanical protection for the foil, and a low-resistance path to ground for interference currents. Together, they offer superior performance compared to single-screen cables, ensuring clean signal transmission even in electrically noisy environments with motors, fluorescent lights, or other interference sources. This dual screening is particularly important for long cable runs where even small amounts of interference can accumulate and degrade signal quality.

How far can I run RG11 cable for CCTV applications?

RG11 cable can support significantly longer runs than RG59 or RG6 due to its much lower signal loss (7.0Ω/km vs 42-48Ω/km for RG59). For analogue CCTV, RG11 can typically support runs of 400-600 metres with good image quality, compared to 200-300 metres for RG59. For HD video over coax systems (HD-CVI, HD-TVI, AHD), RG11 can extend transmission distances by 50-100% compared to RG59, depending on resolution. The exact maximum distance depends on camera resolution, signal type, and acceptable signal degradation, but RG11 consistently provides approximately double the transmission distance of RG59 for equivalent signal quality. This makes it ideal for large facilities, perimeter security, car parks, and any application requiring long cable runs.

Is this cable suitable for outdoor use?

Yes, the UV-resistant LSZH jacket makes this cable suitable for outdoor installations and exposed applications. The UV resistance prevents degradation from sunlight exposure that would damage standard non-UV-rated cables over time. The extended operating temperature range of -40°C to 70°C also makes it suitable for harsh outdoor environments. However, for direct burial applications, you should use conduit or duct for additional mechanical protection. For aerial installations exposed to weather, this UV LSZH cable is an excellent choice. The LSZH properties also provide fire safety benefits for outdoor installations near buildings or in public spaces.

What applications is RG11 cable best suited for?

RG11 is ideal for: long CCTV camera runs where signal quality is critical; HD video over coax systems requiring extended distances; satellite TV and terrestrial TV signal distribution in large buildings; professional CCTV installations in car parks, perimeters, and large facilities; any application where you need to minimize signal loss over distance; installations requiring the lowest possible signal loss; backbone distribution in complex video systems; and outdoor CCTV installations requiring UV resistance and fire safety. Essentially, RG11 is the professional choice when you need maximum performance, longest transmission distances, or both.

Can RG11 use the same connectors as RG59 or RG6?

No, due to its larger diameter (10.30mm vs 6.10mm for RG59), RG11 requires specific RG11 connectors. You cannot use RG59 or RG6 connectors on RG11 cable. RG11-specific BNC connectors and F-connectors are readily available from cable suppliers. While this means you need different connectors, the connection process is similar to other coaxial cables. Professional installers working with RG11 will have the appropriate connectors and tools. The need for specific connectors is a small trade-off for the significant performance advantages RG11 provides for long runs and demanding applications.

What is the stranded conductor advantage?

The stranded tinned copper conductor (7 strands x 0.40mm) provides several advantages over solid conductors: better flexibility, making the cable easier to route and install, especially around corners and through tight spaces; improved resistance to flex fatigue, so the conductor is less likely to break with repeated bending; better reliability in applications with vibration or movement; and the tinning (coating with tin) protects the copper from oxidation, ensuring long-term conductivity and reliability. While solid conductors can offer fractionally lower DC resistance, stranded conductors are generally preferred for professional installations due to their superior handling characteristics and long-term reliability.

How does the low DC resistance benefit signal transmission?

The extremely low DC resistance of 7.0Ω/km (compared to 42-48Ω/km for RG59) has several important benefits: dramatically reduced signal loss over distance, allowing much longer cable runs; better signal-to-noise ratio at the receiving end; less signal attenuation at high frequencies, which is critical for HD video; more stable signal characteristics over temperature variations; and better performance for applications requiring DC voltage on the cable (like powered amplifiers or LNBs). The low resistance means that at any given distance, RG11 will deliver significantly more signal power to your camera, monitor, or receiver compared to thinner cables, resulting in clearer images and more reliable operation.