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Home Leakage Troubleshooting – Advanced Coax Shielding Integrity Testing
✓
Find and fix hard to hard to locate ingress sources, breaks in coax, loose connections, etc...
✓
Localized leakage at subscriber premises using HL Leakage Transmitter and ONX
Walk
subscriber
premises
looking
and
listening
for leaks
coming out
of coax
network
Disconnect drop from ground
block (GB) or tap and connect the
HL Transmitter to the Drop or GB.
HL Tx Inject high signal level and
allow to detect with the ONX
much higher signal level than
from cable network, increasing
leak field strength
Require:
Software option on ONX (ONX-CATV-SW-HL-LKG) AND HL companion kit:
Seeker HL transmitter, antenna, case (TRI-LKG-HL-METER-KIT)
Use Near field
probe to easily pint-
point leakage at bad
connector, cable, ...
HL Tx operation:
▪
Power On/Off:
▫
– normal operation
Green
▫
– Low Battery
Red
▫
– Very Low Battery
Blinking
Red
▪
Output Level for 138/757.5 MHz
▫
– Low Output: 40 dBmV/100dBµV
Green
▫
– High output: 60 dBmV, 120dBµV
Red
▫
– Device Error
Blinking
Red/Green
– Done /
▪
Charge:
Green
Red
- Charging
Using HL Leakage mode
▪
In HL test mode and walking around
subscriber premises, the ONX measures
signals off the air looking specifically for the
HL Transmitter's two leakage signals.
▪
Each signal has a special identification
modulation called a "Tag." When either of
these two signals are measured, the signal
level and Tag are displayed.
▪
If the signal's Tag is detected and its
measured level exceeds the configured
squelch level, then the ONX emits an audible
tone and the "Tag" box changes to yellow.
▪
For example, squelch was set to 5µV/m, so
the signal level must exceed 5µV/m and the
Tag must be detected (Yes) to turn the box
yellow and to emits an audible (mute on).
▪
As one approaches the leak, a higher signal
level will be measured. The audio sound, the
bar graph and history chart are updated to
show these level variations.
▪
Audio sound volume can be adjusted using
the volume bar at the bottom of the screen,
or the Mute button can be enabled to fully
mute the audible tone when desired.
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