Coaxial cable loss calculator

1. How do you calculate loss of coaxial cable?
2. What is the formula for calculating cable loss?
3. How long can a coax cable be before signal loss?
4. What are the losses in coaxial cable?

How do you calculate loss of coaxial cable?

You can measure cable loss by placing the short end of the cable in the meter; once the signal reflects back, you can calculate the power loss of the cable. Most cable and antenna analyzers have a cable loss mode that displays the average cable loss of a particular frequency range.

What is the formula for calculating cable loss?

The formula to calculate the line loss is P = I × V. If a current 'I' flows through a given element in your circuit, losing voltage 'V' in the process, then the power 'P' dissipated by that circuit element is the product of that current and voltage.

How long can a coax cable be before signal loss?

Therefore, there is no “maximum length coax cable before signal loss”. Different frequencies of RF signal experience attenuation differently, with higher frequencies experiencing far more cable loss. That's down to the following equation, which calculates signal loss in dB/100m.

What are the losses in coaxial cable?

In a typical coaxial cable (Figure 2), there are two main components of cable loss: skin-effect loss and dielectric loss.