RG or Low Loss Coaxial Cable?
Differences Between RG Coaxial Cables and Low Loss Coaxial Cables:
The two main classifications of coaxial cables you may have seen are the RG and LMR series of coaxial cable. An important note is that LMR is a trademarked brand name for cables manufactured by Times Microwave Systems. However, there are many equivalent cables with similar characteristics available in the market. Therefore, we use the term Low Loss cables as a more general description.
As the name suggests Low Loss cables have been designed to offer lower signal losses compared to RG cables. As well as better signal loss the design offers better shielding from external interference. Finally, because Low Loss cables are generally solid core compared to stranded, they provide greater flexibility. These advanced performance characteristics come at a higher cost. As with RG cables, it is important to source Low Loss cables from reputable manufactures to ensure that you receive the performance benefits the cost implies.
1. Signal Loss:
RG coaxial cables generally have higher signal loss compared to Low Loss cables. This means that over longer cable runs, RG cables may experience more attenuation, leading to a decrease in signal quality and strength. Whereas Low Loss cables offer lower signal loss compared to RG cables. Their design and construction result in improved signal quality and minimal attenuation over longer cable runs. This makes them ideal for applications that require high signal integrity and long-distance transmission..
Shielding:
RG cables typically have lower shielding effectiveness than Low Loss cables. This lower shielding capability can result in higher susceptibility to interference from external sources, potentially affecting signal integrity. While Low Loss cables have better shielding effectiveness than RG cables. The enhanced shielding capabilities help minimize interference from external sources, ensuring a more reliable and cleaner signal transmission.
When to Use RG Coaxial Cables and When to Choose Low Loss Coaxial Cables:
RG coaxial cables
RG coaxial cables are suitable for certain applications where cost-effectiveness and moderate performance are sufficient.
Here are some scenarios where RG cables can be a suitable choice:
1. Shorter Cable Runs: RG cables are often used for shorter cable runs where signal attenuation is less of a concern.
2. General Audio/Video Connections: RG cables are commonly used for general-purpose audio/video connections, CCTV installations, and other non-critical applications where signal loss and shielding effectiveness are not primary concerns.
Low Loss Cable Coaxial
Low Loss coaxial cables are designed to provide superior performance and lower signal loss in various applications. Here are some instances where Low Loss cables are recommended:
1. Longer Cable Runs: In applications where maintaining signal integrity over extended distances is crucial, Low Loss cables excel. Their low loss characteristics ensure that the RF signal remains strong and reliable over a longer distance, making them ideal for applications requiring long cable runs.
2. Enhanced Shielding Requirements: Low Loss cables offer better shielding effectiveness compared to RG cables. They provide improved protection against external electromagnetic interference, making them suitable for applications where signal quality and reliability are paramount.
3. Greater Flexibility: Low Loss cables are generally with a solid inner core which provides for a cable that is more flexible so perfect for applications that require more cable bending.
RG (Radio Guide) coaxial cables are a series of cables used in various applications for transmitting RF (Radio Frequency) signals. RG is a generic designation and any manufacturer can use the name RG in their products. For this reason, it is important to buy cables from reputable manufacturers to ensure a good quality of product.
