When choosing the best coaxial cable, consider these factors:
Key Considerations for Coaxial Cable Selection
- Impedance: Typically 75 Ohm for video and 50 Ohm for data transmission. Ensure the correct impedance for your application.
- Shielding: Look for double or quad shielding (foil and braid) to minimize signal interference (EMI/RFI). Higher shielding effectiveness (dB) is better.
- Attenuation: Lower attenuation (dB loss per unit length) is crucial for longer cable runs to maintain signal strength.
- Cable Type: RG-6 is generally preferred for modern applications like HDTV, cable internet, and satellite TV due to its superior shielding and lower attenuation compared to RG-59.
- Connector Quality: Use high-quality, properly installed connectors (e.g., compression connectors) for optimal signal transfer and weather resistance.
- Durability: Consider the cable's jacket material (e.g., PVC, PE) and construction for environmental resistance (UV, moisture) and physical protection.
Recommended Coaxial Cable Types
- RG-6: Standard for TV, satellite, and internet. Offers good performance and shielding.
- RG-11: For very long runs where signal loss needs to be minimized. Thicker and more expensive than RG-6.
In summary: For most home theater and internet applications, a high-quality RG-6 cable with quad shielding and properly installed connectors is the best choice.
