General Information
Model 436A
Table
1-1.
Specifications
SPECIFICATIONS
Frequency
Range:
Response
Time:
100
kHz
to
26.5
GHz
(depending on power sensor used).
(0
to
99%
of
reading,
five
time constants)
Power
Range:
Range 1 (most sensitive)
<10
seconds.
Range 2
<1
second
(display calibrated
in
watts, dBm, and
dB
relative to
reference power level).
With
8481
A,
8482A,
or
8483A
sensors:
50
dB
with 5
full scale ranges
of-20,
-10,
0, 10,
and
20
dBm
(10
µW
to
100
mW).
With
8481
B
or
84828
sensors:
HP
8481B
is
44 dB
(1
mW
to
25W)
at
0 to
35°C
and
HP
8482B
is
43
dB
(1
mW
to
20W)
at
35°C
to
55°C
with 5 ranges
of
10, 20, 30, 40
and 43
or
44 dBm.
With
8481
H
or
8482H
sensors:
45
dB
with 5 ranges
of
0,
10,
20, 30
and 35 dBm (1
mW
to
3W).
With
8484A
sensor:
50
dB
with 5 full scale ranges
of
-60,
-50,
-40,
-30,
and
-20
dBm
(1
n W to
lOµW).
Range
3-5
<100
milliseconds.
(Typical, measured
at
recorder output).
Cal
Factor:
16-position switch normalizes meter reading to
ac·
count for calibration factor
or
effective efficiency.
Range
85%
to
1003
in
13
steps.
Cal
Adjustment:
Front panel adjustment provides capability
to
adjust
gain
of
meter
to
match power sensor in use.
Recorder
Output:
Proportional
to
indicated power with 1 volt
corre-
sponding
to
full scale and
0.316
volts
to
-5
dB;
Accuracy:
1
kn
output
impedance,
BNC
connector.
1-2
lnstrumentation
1
:
Watt mode: ±0.53.
dBm mode:
±0.02
dB
±0.001 dB/°C.
3
dB
[REL]
mode
2
:
±0.02
dB
±0.001
dB/°C~
Zero:
Automatic, operated by front panel switch.
Zero
set:
±0.53
of
full scale on most sensitive range.
typical,
±1
count on other ranges.
Zero
carry
over:
±0.23
of
full scale when zeroed
on
the most sensitive range.
Noise
(typical, at constant temperature, peak change
over any one-minute interval):
20
pW
(8484A);
40
nW
(8481A, 8482A, 8483A); 4
µW
(8481H,
8482H).
Drift
(1
hour, typical, at constant temperature after
24-hour
warm-up);
20
pW
(8484A);
10
nW
(8481A,
8482A, 8483A);
1.0
µW
(8481H, 8482H).
Power
Reference:
Internal 50
MHz
oscillator with
Type N Female connector on front panel (or
rear
panel,
Option 003
only).
Power output:
1.00
mW.
Factory set
to
±
0.7%,
traceable
to
the National
Bureau of Standards.
Accuracy:
±1.2%
worst case
(±0.9%
rss) for one
year (0°C
to
55°C).
RF
Blanking
Output:
Open collector TTL; low conesponds to blanking
when auto-zero mode
is
engaged.
Display:
Digital display with four digits,
203
over-range
capa-
bility on all ranges. Also, uncalibrated analog
peak·
ing
meter
to
see fast changes.
Power
Consumption:
lOOV
±
103,
48
to 66
Hz
and
360
to
440
Hz.
120V
+53,
-103,
48
to
66
Hz
and
360
to 440
Hz.
220
or
240V
+53,
-103
48
to 66 Hz.
Typically less than 24 watts (<25 watts for
Opt.
022),
60V·A
maximum.
Dimensions:
134 mm High (5-1/4 inches).
213 mm Wide (8-3/8 inches).
279 mm Deep (11 inches).
Net
Weight:
4.5
kg
(10
lbs).
1
Includes sensor non-linearity. Add
+2,
-4% on top range when using the
8481A, 8482A,
or
8483A
power
sensors.
2
Specifications are for within range measurements. For range-to-range accuracy add the range uncertainties.
3
Referenced to
25°C.
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