The Ultimate Guide to Coaxial Cable Assemblies for RF Applications

1. LMR240 Coaxial Cable Assemblies LMR240 is a type of coaxial cable assembly that is commonly used in wireless communications and RF applications. It has an impedance of 50 ohms and a frequency range of up to 6 GHz. LMR240 assemblies have a capacitance of 32.0 pF/ft and a velocity of propagation of 78%. The outer diameter is 0.240 inches, and the cable is dual shielded with tinned copper braid and aluminum foil.

2. LMR400 Coaxial Cable Assemblies LMR400 is a type of coaxial cable assembly that is commonly used in high-frequency applications where low loss and high signal integrity are critical. It has an impedance of 50 ohms and a frequency range of up to 6 GHz. LMR400 assemblies have a capacitance of 25.0 pF/ft and a velocity of propagation of 85%. The outer diameter is 0.405 inches, and the cable is dual shielded with tinned copper braid and aluminum foil.

3. LMR600 Coaxial Cable Assemblies LMR600 is a type of coaxial cable assembly that is commonly used in high-power applications where low loss and high signal integrity are critical. It has an impedance of 50 ohms and a frequency range of up to 3 GHz. LMR600 assemblies have a capacitance of 17.0 pF/ft and a velocity of propagation of 88%. The outer diameter is 0.590 inches, and the cable is dual shielded with tinned copper braid and aluminum foil.

4. Direct Burial Coaxial Cable Assemblies Direct burial coaxial cable assemblies are designed for use in outdoor applications where the cable will be buried directly in the ground. These assemblies are typically constructed with a polyethylene jacket that is resistant to moisture, UV radiation, and weathering. Direct burial cable assemblies are available in various sizes and specifications, depending on the application requirements.

5. Flexible Coaxial Cable Assemblies Flexible coaxial cable assemblies are designed for applications where the cable needs to be bent or flexed without compromising the signal integrity. These assemblies are typically constructed with a braided shield and a polyurethane jacket that allows for flexibility.

6. Semi-Rigid Cable Assemblies: Semi-rigid cable assemblies are made from solid copper or aluminum tubing and are commonly used in applications where precise bending and shaping of the cable is required. Semi-rigid cable assemblies offer low loss and high shielding effectiveness, making them suitable for high-frequency applications.

What about my 2.4 GHz Access Point.  Which cable should I use?

For a 2.4 GHz access point, it is recommended to use a coaxial cable with a low loss and a high frequency rating, such as Low Loss 195, or Low Loss 400.  These cables have a frequency range of up to 6 GHz and are suitable for transmitting 2.4 GHz signals. Additionally, the cable should have a low attenuation rate, which refers to the amount of signal loss that occurs as the signal travels through the cable. This is especially important for longer cable runs, as attenuation can significantly impact signal strength and quality.

When selecting a coaxial cable for a 2.4 GHz access point, it’s also important to consider the length of the cable and the specific installation environment. For example, outdoor installations may require a more durable and weather-resistant cable, such as LMR-400, which is designed for use in harsh outdoor environments.

Overall, the best coaxial cable for a 2.4 GHz access point depends on various factors such as cable length, environmental conditions, and desired signal strength. It’s best to consult with a professional installer or refer to the access point manufacturer’s specifications for recommended cable types and lengths.

If you have a particular need for custom length, or type of coaxial cable assembly, contact GNS Wireless today.