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Testing tower cables with antennas can be challenging
due to energy induction from high RF areas as shown
in this waveform. Stepping through various noise filter
settings will result in a “cleaner” waveform.
Mechanical inner-connectors (known as bullets) con-
necting sections of broadcast transmission line some-
times burn open causing power outages. These bullets
can be detected by a TDR.
Line 1
Pulse
= 25 nsec
VOP
V Gain
= 32 x
VOP
= 83%
L1 =49 dBRL
Batt
P r e s s
*
5 2 ft
1 6 m
2
1
Line 1
Pulse
= 25 nsec
VOP
V Gain
= 128 x
VOP
= 83%
L1 =19 dBRL
Batt
P r e s s
*
4 9 1 ft
1 5 0 m
2
1