Agilent Technologies 4395A - Setting the IF;Resolution;Video Bandwidth

Setting
the
IF/Resolution/Video
Bandwidth
Setting the
IF/Resolution/Video Bandwidth
Setting
the
IF Bandwidth
(NA, ZA
Mode)
1.
Press 4
Bw/Avg
5
.
2.
Choose
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
IF
BW .
3.
Press
4
*
5
or
4
+
5
,
or
enter
an
IF
bandwidth
value
directly
from
the numeric
keypad.
A
smaller
IF
bandwidth
increases
the
dynamic
range
but
slows
down the
sweep process
.
IF
Bandwidth
30
kHz
IF
Bandwidth
100 Hz
Figure
6-15. Setting
IF Bandwidth
(IFB
W)
Note
The
IF
bandwidth
should
be
set
equal
to
or
less
than
1/5
of
the
measurement
frequency
.
When
making
impedance
measurements
with
the
43961A,
you
must
set
the
IF
bandwidth
equal
to
or less
than 300
Hz and
set the
averaging factor
equal
to
or
greater
than
8.
Setting the
IF Bandwidth to A
uto Mode
If the sweep type
is log frequency
, the IF bandwidth can be set to auto mode
.
1. Press
4
Bw/Avg
5 .
2.
Toggle
NNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNN
IF BW auto MAN
to
NNNNNNNNNNNNNNNNNNNNNNN
NNN
AUTO man
.
In auto mode, the IF bandwidth is automatically set equal to or less than 1/5 of each
measurement frequency. If you want to set an upper limit of IF bandwidth in auto mode, press
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
AUTO IFBW LIMIT and enter the upper limit with entry keys.
6-26 Setting and Optimizing Measurement Conditions