Protek A434L Operating Manual page 64

 DTF Measurement Mode
Start Frequency: Sets a starting frequency to measure DTF

 Stop Frequency: Sets a stop frequency to measure DTF
 Distance: Sets a distance to measure. The maximum
measurable distance is 1250m (4125ft).
 Cable List: Opens a list of coaxial cables registered in the
instrument. About forty kinds of cables are registered in the
standard cable list. The user can register additional cables to
the instrument by using the application software program
provided with the instrument.
 Window: Applies video filtering to the display of the trace. If
the video filter is activated by turning the Window On, traces
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Delete Custom: Deletes a frequency band from
-
the Custom Band.
Standard: Opens the Cable List registered in the

instrument.
Top of List: Moves to the first page of the Cable
-
List.
Page Up: Moves to the previous page.
-
Page Down: Moves to the next page.
-
Bottom of List: Moves to the last page of the
-
Cable List.
Add to Custom: Copies a cable registered in the
-
Standard Cable List to the Custom Cable List.
Custom: Opens a Custom Cable List registered in the

instrument.
Top of List: Moves to the first page of the Cable
-
List.
Page Up: Moves to the previous page.
-
Page Down: Moves to the next page.
-
Bottom of List: Moves to the last page of the
-
Cable List.
Delete Custom: Deletes a cable registered in the
-
Custom Cable List.