Perfonname
Tests
Model
890J.B
Performance Test
11
HIGH-SELECTIVITY
GAIN
(OPTION SERIES 030)
-
2314A
TO
2636A
Specification
Description
Characteristic
SELECTIVE
POWER
Frequency Range
Carrier
Power
Range
Relative
Measurement
Accuracy
Performance
Llmlts
10
to
1300
MHz
+30
to
-20
dBm
+30
to
-10
dBm
f0.5
dB
f0.5
dB
Conditions
12.5,25, and
30
ldlz
filters
carrier noise filter
levels
>
-95
dBc;
12.5, 25,
and
30
kHz
filters
levels
>
-129
dBc/Hz; carrier
noise
filter
This
test checks the relative accuracy
of
the selective power measurement mode. The
linearity
of
the
IF
1~115
detector
(including
the linearity of the internal dc voltmeter)
is
checked
fizst.
Linearily
is
measured
by
feeding
a
455
kHz
signal
directly into the
IF
via
the fiont-panel connector. The level
is
set
to
produce
a
signal
that
is
near
the upper measurement
limit
of the detector,
a
level reference
is
set,
and
the
range
settings
held. The signal level
is
then decreased by precisely
5
dB,
and
the drop
in
displayed level
is
compared
against
the decrease
in
level.
IF
gain
step accuracy
is
measured by increasing the attenuation of the attenuator
in
5
dB
steps
and
comparing the displayed reading
with
the increase
in
attenuation
Equipment
Signal
Generator..
.
. . .
. . . .
. . . .
. .
.
.
.
. .
. .
.
. . .
.
.
. .
.
.
.
.
. . .
. .
.
.
. .
. .
. .
. . .
.
. .
. . . .
. .
.
.
.
.
.
.
. .
.
.
. . . . .
. .
.
HP
3336C
Procedure
NOTE
In the following procedure the signal generator can be connected either
to
a
sensor module (which is connected
to
the Modulation Analyzer)
or
directly
to
the Modulation Analyzer’s
INPUT
connector. The procedure is written
for the latter case.
Detector
Linearity
1.
Set the
signal
generator
to
455
kHz
CW
at
+3
dBm.
Connect the
signal
generator’s output
to
the Modulation Analyzer’s INPUT.
Allow
the equipment
to
warm
up
at
least one-half
hour.
4-38.4
Performance Test
11
rev.01
OCT9.2
To Next Page
Loading...
