Model
8901B
Performance Tests
Performance
Test
10
HIGH-SELECTIVITY FILTERS TESTS (OPTIONS
032
AND
033)
Specification
SELECTIVE POWER:
Filter
Shape
-6
-a
-2
0
2
4
6
8
10
12
11
18
18
Io
RELATIVE
FREQUENCY
(kHz)
12,5
kHz
Filter Shape (Option
032)
--
-6
-4
-2
0
2
4
6
8
10
12
14
18
18
Io
22
24
20
RELATIVE
FREWENCY
(kM)
25
kHz
Filter Shape (Option
033)
Description
The accuracy of the high-selectivity filters is tested
by
feeding a
455
kHz
CW
signal directly into the
IF
via the front-panel input connector.
As
the frequency of the input
is
changed, the shape of the
IF'
is determined.
NOTE
This procedure tests only instruments with
the
12.5
kHz
Adjacent Chunnel
Filter (Option
032)
or
25
kHz
Adjacent Channel Filter (Option
033)
or
both. Depending on
the
combination
of
these filters with the other available
filter options (Options
035
and
037),
either filter can be defined
as
the
"wide"
or
"narrow"fi1ter with regards to Special finction
24,
which is used
in the procedure. Follow the procedure
or
procedures which apply to
the
instrument's particular option combination.
Equipment
Signal Generator. . .
.
.
. . .
. .
. . . . . .
. .
. .
.
.
. .
,
. . .
.
.
. . . .
. . . . .
. .
.
. .
.
.
.
. . . . . . HP 8640B or HP 3336C
Performance Test
10
4-33
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