Freedom R8100 SERIES, Руководство оператора

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Maximum Length
Sets the maximum cable length in a data entry window so that the R8100 can optimize the RF parameters
and FFT calculations. The entry units are determined by the setting in the Distance Units submenu.
Analyze
Determines the Cable Fault Locator operating mode with a horizontal soft key menu.
Off – The Cable Fault Locator is disabled to allow parameter entry.
Continuous – The display provides continuous measurement updates.
Single Sweep – The display provides one measurement update after a key press is performed on the Single
Sweep soft key.
Calibrate – The Cable Fault Locator performs a calibration to nullify effects from the RF directional
coupler/splitter.
Cable Loss
Shows the cable loss in dB per unit length at the Center Frequency for the selected Cable Type in a numeric
entry window. Also allows a user to override that value or enter one for the specific cable under test. The
entry units are determined by the setting in the Distance Units submenu.
Velocity Factor
Shows the velocity factor for the selected Cable Type in a numeric entry window. Also allows a user to
override that value or enter one for the specific cable under test.
Display Mode
Selects the display presentation with the following horizontal menu choices:
Normal – The display updates continuously.
Freeze – Provides a display snapshot of the first measurement sweep started by a Continuous or Single
Sweep key press in the Analyze submenu, then stops additional display updates. If a measurement sweep
is already in process during the key press, the display updates when complete, and then freezes. Note:
Measurement sweeps completed and displayed before the Freeze key press are not frozen and will be
overwritten by the first subsequent sweep.
Max Hold – The display retains the highest peak signal amplitudes measured during successive sweeps.
Average – Displays a rolling average of the peak return loss amplitude measured on each successive
sweep. The average consists of 1 to 5 sweeps, shown beside the mode indication.
Marker Mode
Provides display marker control via a horizontal soft key menu.
Off – No markers are displayed
Absolute – Enables one marker with peak return loss and distance readings.
Delta – Enables a second marker with peak return loss and distance readings. The distance between the
first and second marker is shown in the main display area.