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ADDITIONAL
FREQ
C ACQUISITION
MODES
(2151
ONLY)
13
(1)
MANUAL
-
This function
is
used
to
override the
automatic
acquisition cycle of
FREQ
C.
It
enables the user
to
enter
manually
a center frequency
and
achieve the
fastest
possible
read
rates.
(2)
LOW FM
-
When
enabled
this function selects
an
extended
acquisition
time
to
enable frequency readings of
signals
with low modulation
rates.
This function
is
used
only during
FREQ
C measurements.
(3)
TRACK
-
When
enabled
this
function
selects
the
fastest possible
auto-acquisition
cycle
to
enable swept-frequency
readings.
This function
is
used
only
during
FREQ
C
measurements.
MATHS
FUNCTIONS
14
(1)
MULT
-
When
activated
this
function
scales
readings
by
the
factor stored in
the
'MULT'
store.
(2)
OFFSET
-
When
activated
this
function displays the difference
between
the
measured
value
and
the
number
held in the
'OFFSET'
store.
(3)
SMOOTH
-
This
is
a
Special Function
(SF
21).
Selecting
SMOOTH
causes the
counter
to
take a
running average
of
the input frequency.
SPECIAL FUNCTIONS
15
This
function preselects special functions
and
enables them.
STORE/RECALL FUNCTIONS
STORE
-
This
function enables the operator
to
store
data
in
specific stores.
RECALL
-
This function enables the operator
to
recall
the contents of
specific stores.
SAMPLE RATE
SAMPLE
-
This function
is
continuously enabled
and
controls
the
sample
rate.
16
(1)
(2)
2151
OPS
A1571/DA
2-3
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