Fluke DTX Series - Insertion Loss

DTX Series CableAnalyzer
Technical Reference Handbook
3-18
Insertion Loss
Note
Insertion loss is also known as attenuation.
Insertion loss is the loss of signal strength over the
cabling, as shown in Figure 3-12. Insertion loss is caused
by the resistance of the copper wire and connecting
hardware and by leakage of electrical energy through
the cable’s insulation.
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 3-13 describes the insertion loss plot.
Signal
source
Signal
output
Insertion loss
amd90f.eps
Figure 3-12. Insertion Loss is a Decrease in Signal Strength