Compare RG58 and RG59 coaxial cables. Learn the critical impedance difference, applications for RF vs video, and...
Published by Wassalat Technical Team
When it comes to coaxial cables for video and data transmission, RG6 and RG11 are two of the most popular choices. But what's the difference? And which one is right for your installation?
This comprehensive guide compares RG6 and RG11 cables side-by-side—covering everything from construction and performance to cost and installation considerations.

RG6 and RG11 are both 75Ω coaxial cables designed primarily for video and data transmission. They're used in applications ranging from residential TV to professional broadcast installations.
RG6 is the most common coaxial cable worldwide. It's used in millions of homes for cable TV, satellite TV, and broadband internet connections. RG6 offers an excellent balance of performance, flexibility, and cost.
RG11 is a thicker, lower-loss cable designed for long cable runs. It's used in commercial installations, large buildings, and anywhere signals need to travel over 150 feet without degradation.
The physical differences between RG6 and RG11 are significant and directly impact performance.
| Component | RG6 | RG11 |
|---|---|---|
| Center Conductor | 18 AWG (Copper or CCS) | 14 AWG (Thicker) |
| Dielectric (Insulation) | Foam PE (4.57mm) | Foam PE (7.11mm) |
| Shield | Single, Dual, or Quad | Dual or Quad (Thicker) |
| Outer Jacket | PVC or PE (6.9mm diameter) | PVC or PE (10.3mm diameter) |
| Overall Diameter | ~6.9 mm (0.27 inches) | ~10.3 mm (0.41 inches) |
| Weight per 100ft | ~6 lbs | ~14 lbs |
The thicker construction of RG11 directly translates to better performance, especially over longer distances.
| Frequency | RG6 (dB/100ft) | RG11 (dB/100ft) | RG11 Advantage |
|---|---|---|---|
| 50 MHz | 1.8 dB | 1.2 dB | 33% less loss |
| 100 MHz | 2.5 dB | 1.6 dB | 36% less loss |
| 400 MHz | 5.2 dB | 3.3 dB | 37% less loss |
| 750 MHz | 6.8 dB | 4.2 dB | 38% less loss |
| 1 GHz | 8.5 dB | 5.4 dB | 36% less loss |
| 1.5 GHz | 10.5 dB | 6.7 dB | 36% less loss |
| 2 GHz | 12.0 dB | 7.8 dB | 35% less loss |
| 3 GHz | 15.0 dB | 9.8 dB | 35% less loss |
| Metric | RG6 | RG11 |
|---|---|---|
| Impedance | 75Ω | 75Ω |
| Max Frequency | 3 GHz | 3 GHz |
| Return Loss (VSWR) | ≥ 20 dB | ≥ 20 dB |
| Capacitance | ~16 pF/ft | ~14 pF/ft |
| Velocity of Propagation | ~83% | ~85% |
RG6 is the default choice for most installations. Here's when to use it:
RG11 is the professional choice for demanding installations. Here's when to use it:
The maximum distance for a cable run depends on the frequency and the signal quality required.
| Application | RG6 | RG11 |
|---|---|---|
| Cable TV (CATV) – 50-750 MHz | 150-200 ft | 250-350 ft |
| Satellite TV – 950-2150 MHz | 100-150 ft | 200-300 ft |
| Broadband Internet – 5-1000 MHz | 150-200 ft | 250-350 ft |
| CCTV – 0-30 MHz | 200-300 ft | 400-600 ft |
| HD-SDI – 1.5 Gbps | 100-150 ft | 200-300 ft |
| 3G-SDI – 3 Gbps | 50-100 ft | 150-200 ft |
To determine which cable you need:
RG11 is significantly more expensive than RG6. Here's what to expect:
| Item | RG6 | RG11 | Cost Difference |
|---|---|---|---|
| Cable (per 500 ft spool) | ~$80 | ~$200 | 2.5x more |
| Connectors (per piece) | ~$0.50-1.00 | ~$2.00-3.50 | 3-4x more |
| Stripping Tool | ~$15 | ~$40 | 2-3x more |
| Installation Time | Standard | 50-75% more | More expensive |
RG11 is more difficult to install than RG6. Here's what you need to know:
RG6 and RG11 require different connectors. Here's what to use:
| Feature | RG6 Connector | RG11 Connector |
|---|---|---|
| Barrel Size | Small (6.9mm) | Large (10.3mm) |
| Center Pin | Standard 18 AWG | Thicker 14 AWG |
| Compression Type | Standard | Heavy-duty |
| Color Marking | Often Blue or Clear | Often Red or Black |
| Feature | RG6 | RG11 |
|---|---|---|
| Impedance | 75Ω | 75Ω |
| Center Conductor Size | 18 AWG | 14 AWG |
| Overall Diameter | 6.9 mm | 10.3 mm |
| Attenuation @ 100 MHz | 2.5 dB/100ft | 1.6 dB/100ft |
| Attenuation @ 1 GHz | 8.5 dB/100ft | 5.4 dB/100ft |
| Max Recommended Length | 150-200 ft | 250-350 ft |
| Cost (per 500ft) | ~$80 | ~$200 |
| Installation Difficulty | Easy | Challenging |
| Connector Type | Standard F-Type | RG11 F-Type |
| Best For | Residential | Commercial/Long Distance |
RG11 has a thicker center conductor (14 AWG vs 18 AWG) and larger overall diameter, which provides lower signal loss over longer distances. RG6 is thinner, more flexible, and less expensive.
It depends on the frequency. For cable TV (under 750 MHz), RG6 can work at 200 feet, but you may need an amplifier. For satellite TV (1-2 GHz), RG6 is limited to about 150 feet. RG11 is recommended for runs over 150 feet.
No. RG11 connectors are larger and won't fit RG6 cable. You must use the correct connector for each cable type.
RG11 performs better over long distances but is overkill for most residential installations. "Better" depends on your specific needs—distance, frequency, and budget.
For satellite TV (950-2150 MHz), RG6 is typically limited to 100-150 feet. For runs longer than that, use RG11 or add a signal amplifier.
RG11 can handle cable TV signals (50-750 MHz) up to 250-350 feet without significant signal degradation.
Yes, for long runs or commercial installations. For standard home installations under 150 feet, RG6 is more cost-effective.
Yes, you can use RG11 for the main trunk line and RG6 for shorter drops. Just use proper connectors and splitters.
You need RG11-specific connectors. F-Type connectors for RG11 have a larger barrel, and BNC connectors for RG11 are also larger.
Yes. RG11 is stiffer, heavier, and requires larger bend radius, larger conduit, and different tools. Installation takes 50-75% longer.
For runs under 200 feet, RG6 is fine. For runs over 200 feet, RG11 provides better video quality with less signal loss.
Yes, RG6 can handle 4K video signals when using proper connectors and short-to-medium runs. For longer runs, RG11 is recommended.
We stock high-quality RG6 and RG11 cables for all applications—from residential TV to commercial installations. Choose from standard, plenum, outdoor, and quad-shield options.
Last Updated: July 2026
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