Understanding Coaxial Cable: Cost, Functionality Application
Coaxial cable is a common type of data and signal transmission cable used in a variety of applications, including television and internet connections. Understanding the cost, functionality, and application of coaxial cable is crucial for anyone involved in home entertainment, networking, or cable installations.
What is Coaxial Cable?
Coaxial cable, often simply referred to as coax, is a description of a specific type of cable design that consists of a round wire conductor surrounded by a tubular insulating layer, all enclosed within a protective outer conductor which is commonly known as the shield. This structure is designed to minimize signal interference and loss.
Types of Coaxial Cables and Their Costs
Standard Coaxial Cable
The cost of standard coaxial cable can vary based on several factors including the type, length, and brand. For basic RG-6 or RG-59 cables, which are commonly used for basic home connections, prices typically range from $10 to $30 for lengths between 25 to 100 feet. These cables are suitable for general-purpose uses and are widely available at most retail stores and online.
High-Quality or Specialty Coaxial Cables
For premium cables designed for specific applications such as those with enhanced shielding or for high-speed internet, prices can go up to $50 or more for longer lengths or higher quality. These specialized cables are often used in professional installations or for high-performance applications where signal quality and reliability are critical.
Bulk Coaxial Cable
If you are looking to purchase coaxial cable in bulk, for example, 500 feet or more, prices can average around $100 to $300 depending on the specifications. Bulk cables are often used in larger installations or by commercial installers who require a large volume of cable.
Cost Factors
Prices for coaxial cable can fluctuate based on the retailer, region, and current market conditions. It is always a good idea to check various sources for the best deals. Retailers often have sales or promotions, especially during the holiday season, which can significantly reduce the cost of bulk purchases.
Power and Functionality
It's important to note that not all coaxial cables are powered. Typically, satellite lines require a charge to function, specifically a 14 to 18 volts DC. This voltage is sent from the satellite receiver to the Low Noise Block (LNB) on the front of the dish. Digital terrestrial connections, however, do not power the coaxial cable line at all. Similarly, cable TV lines are not powered within the home. The main power lines that are suspended on poles or buried in your back yard or street are powered to supply power to the line amplifiers. Once the line splits off to your home, the segment has no power.
Cost in Different Regions
The cost of coaxial cable varies by region. In the UK, for instance, a reasonable quality standard cable would cost around 50 pence per meter, which is approximately 50 American cents. This price does not include any connectors or fixings that might be required.
Example Costs
For example, a 100m roll of RG-59 coaxial cable might cost around ￡11, which works out to about 11 pence per meter. A roll of double-shielded PSF1/3 coaxial cable might cost around ￡80 for a 250m roll, which works out to about 32 pence per meter. These examples illustrate how the cost can vary based on the specific type and length of cable.
Conclusion
Coaxial cable plays a crucial role in modern home and business networks. By understanding the various types, their applications, and the factors that influence their cost, homeowners and professionals can make informed decisions when purchasing or installing coaxial cable.