A32A1W1 Output Check - HP 8340B Manual

A32A1W1 OUTPUT CHECK
Test Setup
ON THE
DUT:
The
DUT
should
still
be set to
a
CW frequency of 4530
MHz with its
10
MHz REF connected
to the
spectrum analyzer's
FREQ REFERENCE
input.
Disconnect A32A1W1 from A33J3. Connect A32A1W1
to the input of the spectrum analyzer using the SMB
to
BNC test
cable.
ON THE SPECTRUM ANALYZER:
As shown
in the figure, below:
OTHER EQUIPMENT:
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CAUTION
j
Do not
apply
a
positive
voltage
to A30TP1.
Set the HP 6294A
power supply to —0.5V and connect
a jumper
from the positive terminal and
ground. Plug
in
a
dual banana to alligator clip test lead Connect the ground
side to instrument ground
and the negative side to A30TP1 (TUNE). Also connect the DVM
across these
two
points. Slowly
adjust the
power supply until
the output of A32A1W1
is
approximately 375 MHz (TUNE
voltage
approximately -11V).
Proper Waveform Parameters
As shown in
the figure below, and within the following parameters:
Frequency
=
approximately
375 MHz
Power
=
approximately
0
dBm
±
3
dBm
Harmonics
=
^—15dBc
REF
13 dB^
MKR
375.0
MHz
5.0
dBm
RTTEN 20 dB
0.00
dBm
--
^
5TRRT 350
MHz
RES BM I
MHz
VBW 3
kHz
STOP 850
MHz
SHP 500
msec
Figure B-19. A32A1W1 Output
M/N
Loop Assembly-Level Troubleshooting
HP 8340B/41B