HP 8753D - Page 257

Increasing Sweep
Speed
Y
ou
can
increase
the analyzer
sweep speed
by avoiding
the use
of some
features that
require
computational
time
for
implementation
and
updating,
such as
bandwidth marker
tracking.
Y
ou
can
also
increase
the
sweep speed
by making
adjustments to
the measurement
settings.
The
following
suggestions
for
increasing
sweep
speed
are
general rules
that you
should
experiment
with:
decrease
the
frequency
span
set
the
auto
sweep
time
mode
widen
the
system
bandwidth
reduce
the
averaging
factor
reduce
the
number of
measurement points
set
the
sweep type
use
chop
sweep mode
use
external
calibration
fast
2-port
calibration mode
T
o
Decrease
the
Frequency
Span
The
hardware
of
the
network
analyzer
sweeps
the
frequency
range
in
separate
bands
,
where
switching
from
band
to
band
takes
time
.
Modify
the
frequency
span
to
eliminate
as
many band
switches
as
possible
while
maintaining
measurement
integrity
.
Refer
to
the
following
table
to
identify
the
analyzer's
band
switch
points:
T
able
5-5.
Band
Switch
P
oints
Band Frequency
Span
0 .01 MHz
to
.3
MHz
1 .3
MHz
to
3.3
MHz
2 3.3
MHz
to
16
MHz
3 16 MHz
to
31
MHz
4 31
MHz
to
61
MHz
5 61
MHz
to
121
MHz
6 121 MHz
to 178
MHz
7 178 MHz to 296 MHz
8 296 MHz to 536 MHz
9 536
MHz to 893 MHz
10 893 MHz to 1.607 GHz
11 1.607 GHz to 3 GHz
12 (Option 006) 3 GHz to 4.95 GHz
13 (Option 006) 4.95 GHz to 6 GHz
5-50 Optimizing Measurement Results