Performance Tests (MSO70000/C Series, DSA/DPO70000B/C Series, and DPO7000 Series)
Time Base Syst
em Checks
These procedures check those characteristics that relate to the time b ase system
and are listed as checked under Warranted Characteristics in Specifications.
Check Timebase and
Delay Time Accuracy and
Reference
E
quipment Required
P
rerequisites
One timer-counter (Item 8)
One 50 Ω, precision coaxial cable (Item 4)
One SMA male-to-female BNC adapter (Item
19)
One sine wave generator (Item 9)
(See page 3-18, Prerequisites.)
Figure 3-18: Initial test h
ookup
1. Install the test hookup and preset the instrument controls:
a. Hook up the test-signal source: Connect the input of the timer-counter
to AUX Out (< 4 GHz models) or reference output (≥ 4 GHz models).
(See Figure 3-18.)
Set the timer-counter gate to 1 s.
Set the timer-counter to count the 10 MHz reference ou
tput.
b. Initialize the instrument: Press the Default Setup button.
c. < 4 GHz models: Display menu mode. Select Utilities > External Signals
and press Ref Out.
2. Confirm the time base is within limits for accuracies:
a. Check long-term sample rate, d elay time accuracies, and reference output
frequency:
CHECK that the count on the timer-counter is within limits. (See
page 3-37.)
Enter the count on the test record.
MSO70000/C, DSA70000B/C, DPO7000B/C, DPO7000, MSO5000, DPO5000 Series 3–73
To Next Page
Loading...
Need help?
General
