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Cokeva
11940C
Operation Note
1
1
‐
1.
GENERAL
INFORMATION
1
‐
2.
Description
1
‐
3.
The
Cokeva
11940C
Close
‐
Field
Probe
is
a
hand
‐
held,
electromagnetic
‐
field
sensor
designed
to
make
repeatable,
calibrated
magnetic
field
measurements
from
30
MHz
to
1
GHz.
It
is
optimized
for
the
location
and
measurement
of
sources
of
electromagnetic
interference
(EMI)
in
electronic
equipment.
The
Cokeva
11940C
can
also
be
used
as
a
localized
magnetic
field
source
when
operated
in
conjunction
with
an
appropriate
signal
generator,
thereby
allowing
circuit
board
level
susceptibility
testing
of
instruments.
Included
in
Shipment:
ITEM
DESCRIPTION
QTY
11940C
Close
field
probe,
hand
held,
30
MHz
to
1
GHz
1
9320
‐
6720
China
RoHS
Addendum
for
Accessories
1
1250
‐
1250
Adapter
‐
Coaxial
Straight
Male
‐
N
Female
‐
SMA
1
1250
‐
1700
Adapter
‐
Coaxial
Straight Male
‐
BNC
Female
‐
SMA
1
8120
‐
4811
Cable
Assembly
– Coaxial
1
CK
‐
11940
‐
90007
Operation
Note
1
1
‐
4.
Initial
Inspection
1
‐
5.
If
the
shipment
contents
are
incomplete
or
damaged,
notify
the
Cokeva
office.
If
the
shipping
container
is
damaged,
or
the
cushioning
material
shows
signs
of
stress,
notify
the
carrier
as
well
as
the
Cokeva
office.
Keep
the
shipping
materials
for
the
carrier’s
inspection.
The
Cokeva
office
will
arrange
for
repair
or
replacement
without
waiting
for
a
claim
settlement.
1
‐
6.
See
Paragraph
4
‐
1
for
Operation
Verification.
2
‐
1.
SPECIFICATIONS
2
‐
2.
Specifications
for
the
Cokeva
11940C
are
listed
in
Table
1.
An
asterisk
(*)
placed
after
an
entry
indicates
a
supplemental
characteristic.
Supplemental
characteristics
are
not
specifications
but
are
characteristics
included
as
additional
information
for
the
user.
2
‐
3.
Figure
1
illustrates
the
characteristic
frequency
response
for
the
Cokeva
11940C
Close
‐
Field
Probe.
See
Section
3
‐
4,
Antenna
Factors,
for
additional
information.