BDS
Cal
Cart
20
Intermod —
Select
the
number
of
intermodulation
products
reported
for
the
fundamental.
Up
to
6
IMD
products
can
be
selected
for
a
fundamental
(3
pairs):
F1
+1/
‐
1
F2
(2
IMD
products).
F1
+2/
‐
2
F2
(4
IMD
products).
F1
+3/
‐
3
F2
(6
IMD
products).
Tolerance —
The
Tolerance
field
defines
the
tracking
filter
window
as
a
percentage
from
the
center
of
the
fundamental
frequency.
This
gives
the
frequency
range
of
a
generator
for
a
frequency.
Example
‐
For
a
2
MHz
generator
that
moves
from
1.8
to
2.2
MHz,
you
would
enter
a
tolerance
of
at
least
10%.
The
input
value
range
for
this
field
is
0.01
to
20.47%.
The
maximum
tolerance
for
a
frequency
is
lim
‐
ited
based
on
the
following
formula:
5/frequency
in
MHz
*
100.
Filter Width & Track Quality —
These
are
advanced
parameters
used
to
fine
‐
tune
the
frequency
tracking
algorithm.
Note:
It
is
recommended
that
these
settings
are
kept
at
their
default
values
of
0.1
and
0.01%,
respec
‐
tively.
Filter
Width
is
used
to
widen
or
narrow
the
filters
used
to
determine
frequency
lock.
Default
for
Filter
Width:
0.1%.
Note:
Filter
Width
ranges
from
0.01
to
2.047%.
Track
Quality
is
used
to
adjust
lock
speed
at
the
expense
of
accuracy.
The
higher
the
value,
the
lower
the
quality
and
the
lower
the
frequency
accuracy.
Default
for
Track
Quality:
0.01%.
Note:
Track
Quality
ranges
in
value
from
0.0001
to
0.1023%.
Selected Frequencies —
Displays
all
frequencies
that
have
been
added
to
the
measurement
configuration.
Frequencies
are
listed
in
MHz.
Column
headers
(from
left
to
right):
Fundamental
in
MHz
Harmonic
(overtone)
number
(0
‐
15)
Intermod
number
(
‐
3
to
3,
0
means
no
IMD)
Frequency
in
MHz.
Clicking
on
a
fundamental
in
the
list
will
highlight
all
frequencies
for
the
fundamental.
Note:
Harmonics
or
IMD
frequencies
can
be
clicked
on
individually.
Note:
Clicking
the
“<<
Remove”
button
will
remove
the
highlighted
frequencies
from
the
list.