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(
8
)
Set the
audio generator frequency
to
100kHz and
adjust the
audio
level to
the
same
monitor
level as
noted
in (4).
(9)
Verify
that
the
d.v.m.
reading
is
within the
range
0.94V
to
1.06V.
NOTE:
Paragraphs
5.39
to
5.43
relate
to
9081H
and
9082H
only.
The
tests
applicable
to
models 9081
and 9082 resume
at
paragraph 5.44.
RECONNECTION
OF HIGH
LEVEL AMPLIFIER
5.39
For
models 9081
H
and
9082H
remove
the
SMA
to
type
N
test
lead
which
was connected
as instructed
in
paragraph 5.4.
Reconnect
the
SMA
connector
between
the casting
and
the lOdB amplifier.
Use
the
front
panel RF
OUTPUT
connector
where
required
for
the remaining
tests.
LEVEL
ACCURACY CHECK
5
.
40
Test
Equipment Required
Page 5-2 Table
5
Mil
li
voltmeter (True
RMS)
Item 2
Cable
with
N-N
connectors
5
.
41
Procedure
(1)
Set the
UUT
controls as follows:-
AM
switch
to
OFF
F/v\/0M
switch
to
OFF
FINE
TUNE
switch
to
OFF
CHANNEL
SPACING
switch
to
'10kHz'
TUNE
switch
to
FAST
OUTPUT
switch
to
NORMAL
METER
switch
to
CW
OUTPUT
LEVEL
switch
to
+10dBm
position
(2)
Connect
the True
RMS
Mi
Ili
voltmeter
to
the
50Q
output socket
of the
UUT
using appropriate cable.
(3)
Tune
the
UUT
to
50MHz
and
adjust the
VERNIER
control
for
a
reading of OdB
on
the
UUT
meter.
Verify
that
the
mil
li
voltmeter
reads +1
OdB
m
±0
.
4dB
m
.
9081
&
9082 Vol
.
2
5-28
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