What formula should be used to calculate the expected output level?

To determine the expected output level of a signal, the appropriate method involves considering the existing output level and accounting for any losses that occur in the system. The expected output level is found by subtracting the total loss from the measured output level because losses reduce the signal strength as it travels through the medium.

Calculating in this way allows for a clear understanding of how much of the signal strength will still be present after it passes through various elements that may introduce attenuation. The total loss includes various factors such as cable losses and insertion losses, which will all contribute to the degradation of the signal’s strength.

By focusing on the output level and deducting total loss, you can arrive at an accurate expected signal level, which is crucial for troubleshooting and ensuring that systems maintain optimal performance.