Are There Different Kinds of Coaxial Cables

Coaxial cables are everywhere — from cable TV and satellite systems to CCTV and RF communication. But are all coaxial cables the same? Definitely not. In this guide, I’ll walk you through the main types of coaxial cables, explain their differences, and help you choose the right one for your application.

Understanding the Basics of Coaxial Cables

A coaxial cable (or “coax”) is designed to transmit high-frequency signals with minimal loss. It consists of:

• Center conductor – usually copper
• Dielectric insulator – separates the center wire from the shield
• Shielding – metal braid or foil to block interference
• Outer jacket – protective plastic layer

Two common impedance standards dominate the market:

• 75 ohms: Used for TV, satellite, and broadband
• 50 ohms: Used in RF, antenna systems, and test equipment

The Main Types of Coaxial Cables

Different coax types are optimized for different tasks. Let’s break down the most widely used ones:

• 

  RG59 – The Lightweight Option

• Thin and flexible

• Suitable for short-distance analog video (e.g., CCTV)

• More prone to signal loss over long runs

RG6 – The All-Around Performer

• Heavier shielding, better at rejecting interference
• Ideal for cable TV, satellite, and DOCSIS internet
• Available in dual-shield, tri-shield, and quad-shield variants

RG11 – Long-Distance Heavy-Duty

• Thicker, lower signal loss
• Better for long runs over 300 feet
• Often used in commercial CATV backbones

LMR Series (e.g., LMR-400)

• Low-loss 50Ω coax for RF and wireless applications
• Superior shielding and weatherproofing for outdoor use

Quick Comparison Table

How to Identify Coaxial Cable Types

• Check the printed label: Most cables are labeled (e.g., RG6/U Quad)
• Measure diameter: RG11 is thicker than RG6
• Feel the flexibility: RG59 bends more easily than RG6 or RG11
• Connector fit: Use F-type for RG6/59, N-type for LMR cables

Which Coaxial Cable Should You Choose?

The right cable depends on what you’re connecting and how far you’re running the signal.

By Application

By Frequency and Bandwidth

• RG59: Up to 50 MHz (lower bandwidth)
• RG6: Up to 1 GHz (TV/internet)
• RG11: Up to 3 GHz (long-run CATV)
• LMR-400: Up to 6 GHz (Wi-Fi, LTE, etc.)

Environmental Factors

• Use quad-shielded RG6 for high-interference areas
• Use flooded or direct burial RG11 for underground installations
• Use UV-rated LMR for outdoor wireless links

• 

Mistakes to Avoid When Choosing Coaxial Cables

• ❌ Using RG59 for high-frequency TV signals
• ❌ Choosing 50Ω cable for 75Ω applications (like cable TV)
• ❌ Ignoring shielding in electrically noisy environments

Make sure you match both impedance and application type to avoid signal issues.

Interactive Check: What’s Your Application?

Let’s find the best coax type for your situation:

If your use case doesn’t appear here, reach out to us for a tailored suggestion.

Frequently Asked Questions (FAQ)

Q1: Can I use RG6 instead of RG59 for CCTV?
Yes, but RG6 is stiffer and may be harder to bend in tight spots. RG59 is still common for analog CCTV.

Q2: Is RG11 always better than RG6?
Not always. RG11 is thicker and less flexible. Only use it when you need long runs over 300 ft.

Q3: What’s the difference between 50Ω and 75Ω?
50Ω is used for RF, antennas, and lab equipment. 75Ω is standard for video and broadband.

Q4: Are all RG6 cables the same?
No — they vary in shielding, jacket type (indoor/outdoor), and connectors. Always check specs.

Need Help Choosing the Right Coax? Let’s Talk.

We know selecting the correct coaxial cable can make or break your signal quality — especially for professional installations. At Bafitop, we offer:

• Free technical consultation
• Samples for testing and certification
• OEM and custom labeling options

📩 Email: sales@bafitop.com
📞 Phone/WhatsApp: 86-15817341810