Agilent Technologies 4395A - Page 299

FM
Signal
Measurement
(SA)
FM Signal
Measurement (S
A)
This
example
describes
how
to derive
the frequency
deviation (1f
p
eak
)
value
.
T
est
Signal
The
following
test
signal
is
used
in
this
example:
Wide
band
FM
Signal
Carrier
frequency:
100
MHz.
Modulating
frequency:
1
kHz.
Frequency
deviation:
1
MHz.
Measurement Setup
Connection
Connect
the
test
signal
to
the
R input
port.
Analyzer
Settings
Press
4
Preset
5
.
Then
set
the
4395A
's
controls
as
follows:
Desired
Setting
K
ey
Strokes
MEASUREMENT block Select Spectrum
Analyzer
4
Meas
5
FF
FF
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
FF
FF
F
F
F
F
F
ANALYZER TYPE
FF
FF
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
FF
FF
F
F
F
F
F
F
F
F
F
F
F
F
F
F
SPECTRUM ANALYZER
ACTIVE
CHANNEL
block
Select channel
1
4
Chan
1
5 (default)
MEASUREMENT
block
Select
R
input
port
4
Meas
5
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
FF
F
F
F
F
F
F
SPECTRUM:
R
(default)
Reference
scale
level
0
10
dBm
4
Scale/Ref
5
4
0
5
4
1
5
4
0
5
4
2
1
5
SWEEP
block
Center
frequency
100
MHz
4
Center
5
4
1
5
4
0
5
4
0
5
4
M/

5
Span frequency
5MHz
4
Span
54
5
54
M/

5
RBW
300
Hz
4
Bw/Avg
5
4
3
5
4
0
5
4
0
5
4
2 1
5
Frequency
Deviation
of
Wide
Band
FM
Signal
Press
4
Scale
Ref
5
and
enter
reference
value
if the
trace needs
rescaling.
Frequency Deviation
1.
Press 4
Search
5
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNN
SEARCH: PEAK
.
2.
Press 4
Marker
5
N
NNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNN
1MODE MENU
NNNNNNNNNN
NNNN
1MKR .
3.
Press 4
Search
5
NNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNN
SEARCH: PEAK
NNNNN
NNNNNNNNNNNNNNNNNNNNNNNN
NEXT PEAK .
Examples of Applications 10-21