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Wavetek 3000 - Non-Harmonic Test

Wavetek 3000
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EQUIPMENT
HP8554L/8552B/141T
PROCEDURE
1
.
Set the
Signal
Generator
controls
as
follows
:
FREQUENCYselector
001
.000
MHz
MODULATION
MODE
CW
MODULATION
FREQ
(Inactive)
MODULATION
FM/AM
(Inactive)
OUTPUT
VERNIER
FullyClockwise
OUTPUT
step
attenuator
+10
dBm
PERFORMAMCF
TESTS
2
.
Connect
the
Signal
Generator
RF out
connector
to
the
RF
input
of
the
spectrum
analyzer
.
3
.
Set the
spectrum
analyzer
to
measure
the
non-harmonic
content
of
the
Signal
Generator
ouptut
between
1
and
3
MHz
.
Set the
bandwidth
to 30 kHz,
thefrequency
span
per
division
to
1
MHz and
the
display
to 10
dB/div
.
Locate
the
zero
reference
at
the
left edge
of
the
graticule,
and
adjust
the
fundamental
to
the log
reference
line
(0
dB)
in
the
display
.
4
.
Increase
the
setting
of
theSignalGenerator
FREQUENCY
selector
in
1
MHz
steps
between
1
and
3
MHz
.
The
non-har-
monicsbetween
1
and
3
MHz
should
be
60 dB
below
the
fun
damental
.
Record
the
maximum
non-harmonic
observed
in
the
display
between
1
and
3
MHz in dB below
the
fundamental
on
line
21 of
the
PTR
.
5
.
Set the
spectrum
analyzer
to
measure
the
non-harmonic
content
of
the
Signal
Generator
outputbetween
3
and
250
MHz
.
Set
the
bandwidth
to
300 kHz and the
frequency
span
per
div-
ision
to
100 MHz
.
6
.
Increase
the
setting
of
theSignalGenerator
FREQUENCY
selector
in
1
MHz
steps
between
3
and
10
MHz
and
in
10
MHz
steps
between
10
and 520
MHz while observing
the
spectrum
analyzer
display
.
Use the
tablebelow
to
determine
the
maximum
non-harmonic
level
in each
of
the
frequency
ranges
shown
.
Record
the
maximum
non-harmonic
level
observed
in
each
range
indicated
in
the
tableon
the
applicable
line
of
thePTR
.
Frequency Non-harmonic Non-harmonic RecordMax
Range
of
FrequencyRange
Level
(dB
be- Non-harmonic
Fundamental
low
fundamental)
(Line
number
(MHz)
MHz
in
PTR)
3-250 3-250
>65
22
3-350 3-350
>55
23
3-520
3-1000 >35
24

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