Measurement Carrier Type: Select the car-
rier that will be used during measure-
ment. Normally video unless dedicat-
ed CW source is used.
Set function by choosing one of the
following choices. Press “ENTER”
when complete.
a. Video = Select when using a regu-
lar TV carrier
b.CW = Continuous Wave, select
when using in conjunction with
the LST1700 or CW source inject-
ed on system.
Tag Modulation Frequency (Used only with
Tagger LT1000): Select your modula-
tion frequency in Hz.
Set the tag modulation frequency at
the Hz of your choice. Press “ENTER”
when complete.
a. Use up or down arrow to raise
and lower the value in the edit
box
b.Enter your own value, using the
meter keypad.
c. Range of options is 3-25 Hz, best
results obtained when using 20-
25 Hz.
Reference Distance: The reference dis-
tance function allows you to calculate
the level of leak based on the estimat-
ed distance between your meter and
the actual leakage source. This is the
distance the CLI unit is calculating
the leak field strength. The FCC
requires that a leaks be referenced
at10 ft. CENELEC at 4 meters.
Set the distance reference at the num-
ber of feet of your choice. Press enter
“ENTER” when complete.
a. Use up or down arrow to raise and
lower the value in the edit bar.
b.Enter your own value, using the
meter keypad.
c. Range of options is 10-100 feet.
If the technician is doing a “ride-out”
in his vehicle and the cable plant is
about 30 ft. away but he has 10 ft as
the reference distance in his meter,
the leakage strength value will appear
lower than it is. With CLI-1450 &
HWTK-1750 the user is able to enter
the estimated leakages distance which
will enable the unit to calculate the
equivalent field strength display a
more accurate leakage reading
Important :
The most accurate and repeatable measurements
are made using a dipole antenna (HD-1) located at
the required reference distance. This is the only
method recommended by ACTERNA for doing reg-
ulation compliance measurement.
3-11
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