DSX-600 CableAnalyzer
Technical Reference Handbook
116
Insertion Loss
Insertion loss is the loss of signal strength over the cabling.
Insertion loss is caused by the DC resistance of the copper wire
and connecting hardware, the impedance of the conductor, and
by leakage of electrical energy through the cable’s insulation.
Lower values of insertion loss mean better cabling performance.
At higher frequencies, signals tend to travel only near the surface of
a conductor. This “skin effect”, along with the cabling’s inductance
and capacitance, cause insertion loss to increase with frequency.
Figure 58 shows the results from an insertion loss test.
Note
For some test limits, such as the CATV and DS3
limits, the tester uses the measured length to
calculate the limit for insertion loss.
GPU188.PNG
Figure 58. Coaxial Insertion Loss Results
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