HP 8340b User Manual

A33J1
OUTPUT
CHECK
(WITH PHASE
LOCK LOOP
OPEN)
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 A31W2,
remove
the
SMB
Tee,
and
con¬
nect
the
output
of
A33J1
directly to the
input
of
the
spectrum
analyzer.
ON
THE SPECTRUM ANALYZER:
As
shown
in
the
figures
on
the
following
page:
OTHER
EQUIPMENT:
WV^^^^W^^f
f
CAUTION
j
Do
not
apply
a
positive
voltage
to A30TP1.
Set
the
HP
6294A
power
supply
to
about
—0.5V.
Plug
in
a
dual
banana
to
BNC
connector
across
the
ground
and
negative
outputs.
To
this
connect
a
BNC
cable
with
a
BNC
to
clip
lead
adapter on
the
other
end.
Measure
the
output
of
the
power
supply
with
a
digital
voltmeter to
determine
which
output
lead
is
ground
and
which
is
negative.
Connect
the
ground
side to
ground
(A31P1-pin
5)
and
the
negative
side
to
A33TP1
(TUNE).
Slowly adjust the
power
supply
until
the
output
of
the
VCO
is
approximately
375
MHz
(TUNE
voltage approximately
-11V).
Proper
Waveform Parameters
As
shown
in
views
A
and
B,
on
the
following
page,
and
within
the
following
parameters:
Frequency
=
approximately
375
MHz
Power
=
approximately
0
dBm
±
3
dBm
Harmonics
=
^
-20dBc
B-30
M/N Loop
Assembly-Level
Troubleshooting
HP 8340B/41B

HP 8340b Specifications

General

Brand	HP
Model	8340b
Category	Inverter
Language	English