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Reference
GB1400 User Manual 3-51
At this point you could perform a 30 minute timed test by:
1. Selecting the TEST display mode (press DISPLAY SELECT until a "T"
appears in front of the BER field) and
2. Pressing the ERROR DETECTION CLEAR key to start a timed test interval.
General Rules for Using the Menu System
Operation of the GB1400 Analyzer and Generator Menu systems can be summed
up by the following rules:
1. From the normal display mode, press F1 to enter the Menu system.
2. Navigate to a particular Menu function by pressing the appropriate "F" keys
to select lower level Menus and finally the desired function.
3. In multi-field functions, use the F2 (move left) or F3 (move right) keys to
select a field. Note that the selected field is indicated by its flashing mode:
flashing = selected, not flashing = not selected.
4. Once a field is selected, use the pattern up/down keys to increment or
decrement the value of the selected field.
5. To exit any setup function, press F4 to lock in all setup changes or F1 to
"escape" without making any setup changes.
6. From any Menu, you can always exit the Menu system by pressing F1 key
one or more times until the normal display format appears.