Agilent Technologies 83650B Service Guide

Harmonic Measurement
26.5 to
40 GHz
Disr
egar
dif
beyond
your synthesizer's
c
ap
ability.
22.
Replace
the
HP/Agilen
t
11970K
mixer
with the
HP/Agilent
11970A Mixer
(26.5 to
40 GHz
).
23.
On the
sp
ectrum
analyzer,
select
the
external
mixer
for
the
26.5
to
40 GHz
frequency
range
and
set
the
reference
lev
el
oset
to
compensate
for the
mixer's con
version
loss
at
33
GHz.
24.
On
the
syn
thesizer,
press:
4
CW
5
4
33
5
4
GHz
5
25. On
the sp
ectrum analyzer,
set:
Center
Frequency: 33
GHz
Frequency
Span:
1
MHz
Adjust
the
reference
lev
el
to
p
osition
the
signal
p
eak
at
the
top reference
graticule. Use
this
reference
lev
el
for
all harmonic
measurements.
26.
On
the
spectrum
analyzer,
set:
Start
Frequency:
26.5
GHz
Stop
Frequency:
40
GHz
(
83640B
/L)
38
GHz (
83650B/L)
27.
Man
ually
sw
eep
the
syn
thesizer
across
the
frequency
range
while
c
hec
king
the
sp
ectrum
analyzer
displa
y
for
harmonics and
subharmonics. See
T
able
2-11
for
the
YO
frequency
ranges
that
corresp
ond
to
the
RF
output
frequencies.
Since
an
external
mixer
is
used,
use
the
sp
ectrum
analyzer
signal iden
tify
feature
to
v
erify
that
susp
ected
signals
are
in
the
26.5
to
40
GHz
frequency
range.
The
signals
most
lik
ely
to
app
ear are
the
fth
and
sixth
YO
harmonics.
28.
Compare
the
amplitude
of
the
harmonics
and
subharmonics
to the
sp
ecications
listed
in
the
test
record.
If
an
y
harmonics
or
subharmonics
are
within
5
dB
of
the
sp
ecication,
make
a
more
accurate
measuremen
t
using
the
\Harmonic/Subharmonic
V
erication
Pro
cedure
>
20 GHz"
that follo
ws. Note
the w
orst
case
harmonic
and
the
w
orst
case
subharmonic
from
26.5
to
40
GHz.
29.
F
or
the
83640B
/L
only:
F
rom
step
28,
determine
the
w
orst
case
harmonic
from

26.5 to

40 GHz
and record
this v
alue on
the
test
record.
F
or the
83640B/L/
and 83650B
/L
only:
F
rom
steps
20
and
28,
determine
the
w
orst
case
subharmonic
from
>
20
and 
40 GHz
and record
this v
alue on
the test
record.
Harmonic Measurement 38 to 50 GHz
Disregardifb
eyond
your synthesizer's c
apability.
30. Replace the HP/Agilen
t 11970A mixer with the HP/Agilen
t 11970Q Mixer (33 to 50
GHz).
31. On
the spectrum analyzer, select external mixer for the 33 to 50 GHz frequency range and
set
the reference lev
el oset to compensate for the con
version loss at 40 GHz.
32. On the synthesizer, press:
4
CW
54
40
54
GHz
5
Agilent 8360 Performance Tests
Spurious Signals (Harmonics Subharmonics)
2-37

Agilent Technologies 83650B Specifications

General

Brand	Agilent Technologies
Model	83650B
Category	Portable Generator
Language	English