The size of an aerial cable typically refers to its outside diameter, which varies depending on the specific type of cable used. While "aerial cable" can be a general term, it often refers to coaxial cables used to transmit signals from an outdoor antenna (aerial) to a television or other receiving device. These cables come in various standard sizes, with their dimensions affecting their performance, flexibility, and compatibility with connectors.
Common Coaxial Cable Sizes
Coaxial cables, frequently employed as aerial cables, are classified by industry-standard designations such as RG (Radio Guide) types. The outside diameter is a crucial specification for these cables.
According to RS Components, common coaxial cable types and their outside diameters include:
| Coaxial Cable Type | Outside Diameter (Metric) | Outside Diameter (Imperial) |
|---|---|---|
| RG-6 | 6.90mm | 0.275" |
| RG-62 | 6.15mm | 0.242" |
| RG-11 | 10.30mm | 0.405" |
| RG-12 | 14.10mm | 0.555" |
Source: Coaxial Cable Sizes
Understanding Cable Size and Application
- RG-6: This is one of the most common types of coaxial cable used for residential TV aerial connections and satellite TV. Its 6.90mm (0.275") diameter makes it flexible enough for routing inside homes while offering good signal performance over moderate distances.
- RG-11: With a larger diameter of 10.30mm (0.405"), RG-11 cables are generally used for longer runs or where minimal signal loss is critical, such as in commercial installations or for connecting outdoor aerials to indoor distribution points over significant distances. Its thicker construction provides better shielding and lower attenuation compared to RG-6.
- RG-62 and RG-12: These types are less commonly encountered in standard home aerial installations today. RG-62 was historically used in older computer networks (like ARCNET) and has a thinner profile than RG-6. RG-12 is a much thicker cable, similar to RG-11 in its heavy-duty applications, often used for higher power or longer-distance transmissions where significant signal integrity is required.
Choosing the correct cable size is essential for ensuring proper signal transmission and compatibility with connectors (F-type, BNC, etc.) and equipment.
