Commander
Reference
The
scale
factor
of
the
signal
when
reading
current
is
also
affected
by
the
selected
current
injection
resistor.
Highpass
Filter
This
option
is
for
measurement
of
very
small
signals,
e
.g.,
extracellular
voltages
in
current
clamp.
It
offers
highpass
filtering
from
DC
to
100
Hz
to
minimize
the
effects
of
drift
and
can
be
applied
to
the
headstage
Scaled
Output
signal
along
with
the
lowpass
filter.
The
Highpass
field
is
located
in
the
Scaled
Output
section
beneath
the
V
‐
Clamp
and
I
‐
Clamp
tabs.
There
are
8
cutoff
frequency
options
offered
(right
‐
click
the
field
to
see
these).
How
To
Set
Highpass
Filtering
Use
glider
controls
or
select
from
the
right
‐
click
popup
menu
to
set
the
cutoff
frequency
desired.
Filtering
begins
immediately.
Set
the
field
to
DC
to
bypass
this
filter.
Gain
Scaled
Output
Gain
is
in
the
Scaled
Output
section
in
the
lower
part
of
both
V
‐
Clamp
and
I
‐
Clamp
tabs.
It
has
one
adjustable
field
determining
the
gain
value.
Scaled
Output
Gain
determines
the
amplification
of
the
raw
output
signal
to
the
SCALED
scaled
output
BNC,
e
.g.,
a
gain
setting
of
2
doubles
the
strength
of
the
output
signal,
of
20
increases
it
20×,
and
so
on.
Gain
can
be
set
at
certain
values
only;
right
‐
click
on
the
field
to
see
these.
As
Scaled
Output
Gain
is
altered,
the
scale
factor
displayed
beside
the
signal
type
in
the
Scaled
Output
field
is
updated
accordingly.
How
To
Set
Gain
Use
glider
controls
to
adjust
the
field
or
right
‐
click
and
select
the
gain
you
want.
Changes
are
implemented
immediately.
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