Chapter 4 121
Overview of the Test Set’s Built-In Tools
Using the Oscilloscope (Scope)
Selecting the Oscilloscope’s Filters
Step 1. Press Shift, then RF Anl (AF Anl) to select the AF ANALYZER screen.
Step 2. Select the Scope To field. A list of choices should appear.
Step 3. Select the desired filtering for the signal:
•Input if you want no filtering (dc coupled)
•Filters to route the audio to the oscilloscope after passing through
Filters 1 and 2 (ac coupled).
•De-emp to route the audio to the oscilloscope after passing through
Filters 1 and 2, and the de-emphasis circuitry (ac coupl e d).
•Notch to route the audio to the oscilloscope after passing through
Filters #1 and #2, the de-emphasis circuitry, and notch circuitry (ac
coupled).
Triggering the Oscilloscope
You can control following triggering features of the oscilloscope:
• Trigger external o r i nternal
• Automated or normal triggering
• Continuous or single shot triggering
• Trigger level
• Trigger delay
The oscilloscope is triggered using the Trigger menu. Select this menu
with the following procedure:
Step 1. Press Shift, then Spec Anl (Scope) to go to the SCOPE screen.
Step 2. Select the Controls field, then choose Trigger from the list of choices.
Using the Oscilloscope’s Marker
The marker is used to help you make measurements with the
oscilloscope. By repositioning the marker, you can measure the level
and time.
The marker is controlled using the marker menu. Select this menu with
the following procedure:
Step 1. Press Shift, then Spec Anl (Scope)to go to the SCOPE screen.
Step 2. Select the Controls field, the choose Marker from the list of choices.