Agilent Technologies 4395A - Page 205

Interpreting
the
Trace
Improving
the Readout
Resolution (S
A
Mode)
If
you want
a
more
accurate
frequency
reading
of
the
target
signal,
set
the
span and
the RBW
as
narrow as
possible
.
Note
The
readout
resolution of
the frequency
is determined
by the
setting of
the
frequency span,
the number
of points
(NOP), and
the resolution
bandwidth
(RBW).
The
resolution is
the sum
value of
SPAN/(NOP
0
1)
and
RBW
.
F
or
example
,
when the
frequency span
is 10
MHz, the
NOP
is
801,
and
the
RBW
is
10
kHz,
the readout
resolution is
approximately 22.5
kHz.
T
o
Select
Marker
Readout
Unit
(S
A
Nide)
Maker
readout
unit
can
be
selected
as
follows:
1.
press
4
Utilit
y
5
.
2.
Press
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
MKR
UNIT
{
g
.
3.
Select
one
of
the
following
options:
F
ormat
Unit
Softkey
P
ower dBm
N
N
N
N
N
NN
NN
NN
dBm
W
NN
NN
NN
N
N
N
N
N
N
N
N
WATT
V
oltage
dBV
NN
N
N
N
N
N
N
N
N
N
dBV
dB

V
N
N
N
N
N
N
N
N
N
N
N
N
N
N
dBuV
V
N
N
N
N
NN
N
N
N
N
N
N
N
N
VOLT
Analyzing the Measurement Results 8-3