HP 8340B Manual page 199

8-8.
Frequency Switching Time
Test
Description
This test test verifies that the
synthesizer meets its frequency switching time specification.
It
uses the
synthesizer's rear panel negative
blanking output and an HP 5316A to measure the time
it takes the
instrument to switch from
one CW
frequency to another.
The frequencies tested are those that cause
the worst
case
switching time delay.
Test Equipment
Universal Counter
..
BNC Cable (m)
-
(m)
..........
HP 5316A
HP Part No. 8120-1840
Procedure
1.
Set up the equipment as shown on the computer
CRT.
2.
Select [CarryOn].
The [JANITOR]
softkey returns
you to the test menu.
2.
Select the desired softkey and respond to the
program prompts:
[FullTst] performs the entire frequency switching time test, and compares the
measured
data to
the synthesizer's specifications. Select this softkey to meet the
requirements of the
performance
test.
When
this
test completes, the test results are displayed. Select [Carry On] and then either [Re-
Test]
(to return
to the frequency switching time menu), or
[JANITOR]
(to return to the test menu).
[Other]
lets you
select the two CW frequencies between which
the test will switch. You have
a
choice of:
[A to B] entering two
frequency points;
[A
to
A+d]
entering one frequency point and
the
frequency step size;
[FullTest] running the
full
test; or
[Janitor] returning to the test menu.
If
you select
[A to B] or [A to
A+d],
the frequency you
enter
must be in
MHz.
[JANITOR]
returns you to the test menu.
8-12 Tests/Utilities
Attenuator Calibration and Operation Verification Test Software