Agilent Technologies 83650B Service Guide

2.
On
the
sp
ectrum
analyzer,
set:
Frequency:
Same
frequency
as
the
synthesizer
Span: 1
MHz
Reference
Level: 15
dBm
Scale
Log:
5
dB/Division
Bandwidth
Resolution:
10 kHz
Video
Bandwidth:
30
kHz
3.
Measure
the
syn
thesizer
RF
output
amplitude
with
the
sp
ectrum
analyzer
mark
er.
4.
Set
the
sp
ectrum
analyzer
to
the
harmonic or
subharmonic frequency
to b
e measured.
Measure
the signal
level
with the
sp
ectrum
analyzer
mark
er.
Change
the
reference
lev
el
as
necessary
.
5.
Calculate
the
harmonic/subharmonic
lev
el,
where
the
harmonic/subharmonic is
less than
the
carrier, as
follows:
Harmonic/Subharmonic amplitude
(dBc) =
0
[Syn
thesizer
RF
output
amplitude
(dBm)
0
(Harmonic/Subharmonic
amplitude
(dBm))]
F
or
example:
RF
Output
=
+10
dBm
Harmonic
= 0
60 dBm
Harmonic
(dBc)
=
[RF
Out
0
(Harmonic)]
=
0
[10
0
(
0
60
dBm)]
=
0 [10
+
60
dBm]
=
0
70
dBc
Harmonic/Subharmonic
V
erification
Procedure
>
20
GHz
Note
F
or
accurate
measuremen
ts,
the
syn
thesizer
m
ust
meet
its
po
w
er
atness
sp
ecication.
1.
Note the
synthesizer
CW frequency
that
pro
duces
the
susp
ect
harmonic/subharmonic.
2.
Set
the
syn
thesizer
to
the
same
RF output
frequency as
the harmonic/subharmonic
to
b
e
measured.
Agilent 8360 Performance Tests
Spurious Signals (Harmonics Subharmonics)
2-39

Agilent Technologies 83650B Specifications

General

Brand	Agilent Technologies
Model	83650B
Category	Portable Generator
Language	English