Benefits of Shielded vs. Unshielded Coaxial Aerial Cables

Coaxial cables are a type of cable that is used to transmit data, video, and audio signals. They are constructed with a central conductor surrounded by an insulating layer, which is then surrounded by a conductive shield and an outer jacket. Shielded coaxial cables have an additional layer of shielding between the insulating layer and the conductive shield. This shielding helps to protect the cable from electromagnetic interference (EMI) and radio frequency interference (RFI).

Shielding

The main benefit of shielded coaxial cables is their ability to protect against EMI and RFI. EMI is caused by the electrical noise generated by other electronic devices, while RFI is caused by the radio waves emitted by wireless devices. Both EMI and RFI can interfere with the signals transmitted through the cable, causing errors and data loss. The shielding in shielded coaxial cables helps to block out these unwanted signals, ensuring that the cable can transmit data reliably.

Durability

Shielded coaxial cables are also more durable than unshielded coaxial cables. The outer jacket of a shielded coaxial cable is thicker and more resistant to wear and tear, making it less likely to be damaged. Shielded coaxial cables are also less likely to be affected by extreme temperatures, humidity, and other environmental factors.

Flexibility

Unshielded coaxial cables are more flexible than shielded coaxial cables, making them easier to install in tight spaces. However, this flexibility also makes them more susceptible to damage. Shielded coaxial cables are more rigid, but this also makes them more durable.

Cost

Shielded coaxial cables are more expensive than unshielded coaxial cables. This is because the shielding adds to the cost of manufacturing the cable. However, the increased cost of shielded coaxial cables is often worth it, as they provide better protection against EMI and RFI and are more durable.

Conclusion

Shielded coaxial cables offer several benefits over unshielded coaxial cables, including better shielding against EMI and RFI, increased durability, and improved flexibility. Shielded coaxial cables are more expensive than unshielded coaxial cables, but the increased cost is often worth it for the improved performance and reliability.