Fluke CableAnalyzer DSP-4000 Series - Page 141

Basic Cable Testing
FEXT and ELFEXT
7
7-13
NEXT signal B travels farther than A
Signal
source
A
B
Resulting
NEXT
FEXT signals C and D travel the same distance
(the length of the cable)
Signal
source
C
D
Resulting
FEXT
oy70f.eps
Figure 7-8. How FEXT Signals are All Equally Attenuated