RG6 and RG11 are both widely used 75-ohm coaxial cables for CATV, satellite, broadband and video-signal transmission, but they are designed for different installation conditions.
The main differences are cable size, conductor size, attenuation and installation flexibility.
In Xingfa's current specifications, RG11 uses a larger 14 AWG conductor and has lower published attenuation than RG6, while RG6 has a smaller overall diameter and is easier to route in installations where space and flexibility matter.
| Specification | RG6 | RG11 |
| Nominal Impedance | 75 ± 3 Ω | 75 ± 3 Ω |
| Conductor | BC / CCS | BC / CCS |
| Conductor Size | 18 AWG | 14 AWG |
| Dielectric | Foam PE | Foam PE |
| Dielectric Diameter | 4.57 mm | 7.11 mm |
| Overall Diameter | 6.91–7.62 mm* | 10.16 mm |
| Velocity of Propagation | 85% | 85% |
| Capacitance | 50 pF/m | 50 pF/m |
| 300 MHz Attenuation | 11.64 dB/100m | 7.38 dB/100m |
| 600 MHz Attenuation | 16.73 dB/100m | 10.43 dB/100m |
| 1000 MHz Attenuation | 21.49 dB/100m | 14.27 dB/100m |
*RG6 outside diameter varies by Xingfa's standard-shield, tri-shield and quad-shield constructions.
RG6 is a 75-ohm coaxial cable commonly used for residential and commercial CATV, satellite and broadband signal distribution.
Xingfa's current RG6 construction uses an 18 AWG BC/CCS center conductor with foam-PE dielectric. Depending on the shielding construction, the published overall diameter ranges from approximately 6.91 mm to 7.62 mm.
One advantage of RG6 is that it is physically smaller than RG11, which can make cable routing easier in residential, commercial and equipment-room installations.
Xingfa currently offers RG6 in:
standard shield;
tri-shield;
quad-shield constructions.
For full construction and attenuation data, review the RG6 coaxial cable specifications.
RG11 is a larger 75-ohm coaxial cable designed for applications where lower signal attenuation over the required cable run is important.
Xingfa's current RG11 specification uses a 14 AWG BC/CCS center conductor, 7.11 mm foam-PE dielectric and an approximately 10.16 mm overall diameter.
Compared with RG6, the larger construction results in lower published attenuation across the frequencies currently listed by Xingfa.
For example:
at 300 MHz, RG6: 11.64 dB/100m vs RG11: 7.38 dB/100m;
at 600 MHz, RG6: 16.73 vs RG11: 10.43 dB/100m;
at 1000 MHz, RG6: 21.49 vs RG11: 14.27 dB/100m.
For detailed construction data, review the RG11 coaxial cable specifications.
RG11 is physically larger.
Xingfa's RG11 has an approximately 10.16 mm overall diameter, while current RG6 constructions range from approximately 6.91 to 7.62 mm depending on shielding configuration.
A smaller cable can be easier to route through tighter installation spaces, while a larger cable needs more room and compatible connectors and hardware.
Xingfa's current specifications list:
RG6: 18 AWG
RG11: 14 AWG
The larger conductor is one factor contributing to RG11's lower published attenuation.
This is one of the clearest differences.
Based on Xingfa's published specifications, RG11 has lower maximum attenuation than RG6 at comparable frequencies.
That makes RG11 worth evaluating when total cable length and allowable signal loss become important system-design factors.
However, lower attenuation alone does not mean RG11 should automatically replace RG6.
Because RG6 has a smaller overall diameter, it can generally be easier to route where:
installation space is limited;
tighter cable management is required;
the cable route includes multiple bends;
existing connectors or hardware are designed around RG6 dimensions.
RG11's larger construction requires additional attention to bend radius, routing space and connector compatibility.
Do not assume RG11 automatically has “better shielding” simply because it is a larger cable.
Xingfa's current RG6 product includes standard-, tri- and quad-shield constructions, while the current RG11 specification shows aluminum foil plus aluminum braid shielding.
Shielding and attenuation should therefore be compared as separate technical requirements.
Consider RG6 coaxial cable when:
its published attenuation meets the system requirement;
cable runs are relatively moderate;
installation space or flexibility is important;
the project requires standard-, tri- or quad-shield options;
existing equipment and connectors are designed for RG6.
RG6 is widely used in CATV and satellite installations and remains a practical choice where its electrical and physical specifications meet the system requirements.
Consider RG11 coaxial cable when:
the project requires lower attenuation over the planned cable length;
the larger cable diameter can be accommodated;
compatible RG11 connectors and installation hardware are available;
system calculations show that RG6 signal loss would be too high.
RG11 is commonly used for longer CATV, satellite and broadband distribution runs where lower attenuation is an important design requirement.
No.
RG11 has lower published attenuation and a larger conductor, but that does not make it the correct choice for every installation.
RG6 may be preferable where:
cable space is limited;
installation flexibility is more important;
the expected cable run does not require RG11's lower attenuation;
existing connectors or equipment are built around RG6.
The correct cable should be selected by comparing frequency, transmission distance, allowable loss, connector compatibility, shielding requirements and routing space.
Do not select RG6 or RG11 based on one universal maximum-distance number.
The practical transmission distance depends on:
operating frequency;
total attenuation budget;
signal level;
connectors and splitters;
cable construction;
equipment requirements.
For buyers specifically researching distance limits, see Xingfa's RG11 cable distance guide.
The simplest selection logic is:
Choose RG6 when its attenuation, dimensions and shielding options meet the project requirements and easier routing is important.
Evaluate RG11 when the cable run requires lower attenuation and the larger cable construction can be accommodated.
Before finalizing the specification, confirm:
system impedance;
operating frequency;
expected cable length;
allowable attenuation;
connector type;
shielding requirement;
installation environment.
For other cable types, review Xingfa's coaxial cable category.
Based on Xingfa's current published specifications, RG11 has lower attenuation than RG6 at comparable frequencies, so it is worth evaluating for longer runs. The final choice should still be based on the system's loss budget, frequency and installation requirements.
Yes. Xingfa's current RG6 and RG11 specifications both list a nominal impedance of 75 ± 3 ohms.
Yes. Xingfa's RG11 has an approximately 10.16 mm overall diameter, while its current RG6 constructions range from approximately 6.91 to 7.62 mm.
No. Shielding depends on the specific cable construction. Xingfa currently offers RG6 with standard-, tri- and quad-shield options, while the current RG11 specification lists aluminum foil plus aluminum braid shielding.
Need Help Choosing Between RG6 and RG11?
Send Xingfa your operating frequency, cable length, connector requirements, installation environment and quantity. Our team can help review whether RG6 or RG11 better matches the project specification.
