Test Equipment; Procedure; Frequency Switching; Time Test - HP 8340B Manual

Chapter
15.
Frequency Switching Time Test
15.0 Description
The Frequency Switching Time
test verifies
that the synthesizer meets Its
frequency switching
time specification The test
uses the synthesizer's negative blanking output on
its rear panel
and an
H P 5316A to measure the time
it
takes the instrument
to switch
from one CW frequency
to another. The frequencies selected
for testing
are those which will cause the worst case
delay
in
the switching time.
15.1
Test Equipment
Universal Counter
„ „ „
Cable
BNC
(m) to BNC (m)
-
„ . .
HP 5316A
HP P/N
8120-1840
15.2 Procedure
1
Connect
the equipment and set the HP 5316A as shown on the CRT
Press Cont.
2.
The softkeys provided
for
this
test are as follows
FullTst
-
Performs the entire Frequency Switching Time test and
compares
the test results
to
the synthesizer's specifications Upon completion
of this test, the
test results
will be displayed Press the Carry On
softkey and then select either RE-TEST, returns
you
to the
FRE¬
QUENCY SWITCHING TIME
menu, or
JANITOR,
returns you
to the
test
menu.
Other
-
Allows you
to select the two
CW frequencies between
which the test
will
switch. After selecting
Other, you are given
a
choice of entering
the
two frequency points (A to
B), entering one frequency point and
the frequency step
size (A to
A
-l-d),
running the
full
test (FullTest), or
returning to the test menu (Janitor).
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-
Select the desired softkey and respond to
the
prompts provided
by the program-
HP 8340A/B
and
HP 8341A/B
Frequency Switching Time Test
41/42