The X-axis shows the distance, the Y-axis is the signal power level. So, what can you read from the trace when you open it on the device or on the computer? If you made measurements and obtained the attenuation for the entire line of 0.66 dB and the length of your line is 3 km, then the kilometric attention will be 0.66 / 3 = 0.22 dB / km. Kilometric attenuation is attenuation per unit length. ![]() trc, or other format file containing a graph with the data about the measured duct.Īttenuation is a characteristic showing how much power (dB or dBm) is lost at a given location (attenuation at splice, cross) or in a given section of the duct.
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