HP 8340B Manual page 191

8-3.
CW Frequency Accuracy Test
Description
This test verifies the synthesizer CW mode frequency resolution
and range specifications. Test
fre¬
quencies are selected to exercise each frequency
related circuit
in
the instrument, holding
all
remain¬
ing circuits constant. The test frequencies are grouped so that
an
abnormal indication points to the
circuit most
likely causing the problem.
To
eliminate time
base error from the measurement, the frequency counter's
internal time base
is
used as the synthesizer's
reference
(the synthesizer's internal time base performance is tested sepa¬
rately
in the internal time base aging rate
performance test provided
in the instrument's operating and
service manual). During
this test,
the synthesizer's display and the counter's display should agree
within the resolution of each instrument.
This procedure does not
test for
CW frequency
accuracy as a
function of the time
base accuracy.
Test Equipment
Frequency Counter
...................................
HP
5343A
Option
011
Cables:
SMA
(m)-(m)
....................................
HP Part
No.
08340-20125
BNC
(m)-(m),
2
Required
............................
HP Part No. 8120-1840
Adapters:
3.5 mm (f)
-
(f),
(2 Required)
........................
HP Part No. 5061-5311
SMA
(m)
-
BNC (f)
................................
HP Part No. 1250-1200
Type-N
(m)
-
SMA
(f)i
..............................
HP Part No. 1250-1250
1
Required
for an
HP 8341A/B or 8340A H02
only
Procedure
1.
Select the desired softkey and respond
to
any prompts provided by the program. To get the test
menu
STATUS
to indicate PASS, all three of the following tests must
run and pass:
[Setup] displays the
CW
frequency accuracy test setup.
[M/N]
tests only the
M/N
phase lock
loop.
[20/30]
tests only the
20/30 phase
lock
loops.
[Endpnt Accy] tests the
synthesizer's frequency endpoints,
and the YIG
oscillator's frequency
endpoints.
[ALL]
tests all
of the above. Select
this key to meet the requirements of the operation verification.
[Print] changes the test data destination from the computer
CRT
to the system printer. For
a
printout of the test data, select the system
printer.
No data
is
stored for
this
test.
[DONE]
returns to the test menu.
8-4 Tests/Utilities
Attenuator Calibration and Operation Verification Test Software