Performance Tests
Performance Verification
4Ć16
This procedure checks those characteristics that relate to the Main and
Delayed time base system and are listed as checked under Warranted
Characteristics in the Specifications section.
Check LongĆTerm Sample Rate and Delay Time Accuracy
Equipment Required: One timeĆmarker generator (Item 8), one precision
coaxial cable, (Item 2) and one 50 W termination (Item 1).
Time Required: Approximately 5 minutes.
Prerequisites: See page 4Ć11.
Procedure:
1. Connect, through a 50 W precision coaxial cable and a 50 W termination,
the timeĆmark output of a timeĆmarker generator to CH 1, as shown in
Figure 4Ć7. Set the output of the generator for 10 ms markers.
TimeĆMark
Generator
Output
50 W Termination
Figure 4Ć7:ăHookup for Sample Rate Check
2. Press SAVE/RECALL SETUP ! Recall Factory Setup ! OK Confirm
Factory Init.
3. Set the VOLTS/DIV to 500 mV.
4. Press SET LEVEL TO 50%; use the vertical POSITION knob to center
the test signal on screen.
5. Set the SEC/DIV to 1 ms.
6. Press HORIZONTAL MENU ! Trigger Position ! Set to 10%.
7. Adjust the horizontal POSITION to move the trigger T to the right and on
to the screen. Continue to position the trigger T to align it to the center
vertical graticule line.
8. Press the main menu button Time Base; then press the side menu
button Delayed Only.
9. Set the SEC/DIV of the D (delayed) time base to 1 ms. Then use the
General Purpose knob to set delay time to 10 ms.
Time Base System
Checks
