Anritsu S331C - Manual (Page 50)

Set the Distance and Cable Type
In Distance-To-Fault (DTF) mode, the length of the transmission line (distance) and cable
type are selected. The cable type determines the velocity propagation and cable attenuation
factor. The following procedure can be used to set the distance and select the appropriate
cable type.
NOTE: Selecting the correct cable is very important for accurate measurements
and for identifying faults in the transmission line. Selecting the incorrect cable
type will shift the DTF trace vertically and horizontally making it difficult to accu-
rately locate faults.
Step 1. Press the MODE key.
Step 2. Select DTF RETURN LOSS or DTF SWR mode. The Site Master automatically
sets D1 to zero.
Step 3. Press the D2 soft key.
Step 4. Enter the appropriate D2 value for the maximum length of the transmission line
and press the ENTER key to set the D2 value.
Step 5. Press the DTF AID soft key.
Step 6. Using the Up/Down arrow key, select CABLE TYPE . Standard cable types are
stored in the Site Master cable list. This standard list may not be edited. A cus-
tom cable list can also be created.
Step 7. Using the Up/Down arrow key, select the appropriate list and select the type of
cable. The selected cable type, PROP VEL and CABLE LOSS in dB/ft (or
dB/m) will be displayed.
Step 8. Press ENTER .
Changing the Units
By default, the Site Master displays information in metric units. Use the following proce-
dure to change the display to English units.
Step 1. Press the
SYS key.
Step 2. Select the OPTIONS soft key.
Step 3. Press UNITS to change from metric to English measurement units, or vice versa.
The current selection is displayed at the bottom left corner of the screen.
Changing the Display Language
By default, the Site Master displays messages in English. To change the display language:
Step 1. Press the
SYS key.
Step 2. Select the Language soft key.
Step 3. Select the desired language. Choices are English, French, German, Spanish, Chi-
nese, and Japanese. The default language is English.
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Chapter 3 Getting Started