HP 436A - Page 61

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Model
436A
Performance Tests
PERFORMANCE
TESTS
4-11.
INSTRUMENT ACCURACY TEST
(cont'd)
8.
Set
the
Range
Calibrator
RANGE
switch to the lowest setting
(3
µW)
and
wait
a
few seconds for
the
meter to settle.
9.
Set
the
Range Calibrator
RANGE
switch to
10
µW
(-20
dBm).
10.
When
the
power meter
reading
has
settled, verify
that
the
reading
is
within
the
limits specified
in
the
WATT mode
in
Table
4-2.
11.
Set
the
power meter MODE
switch
to dBm. Verify
that
the
reading
is within limits
specified for dBm Mode
in
Table
4-2.
12.
Set
the
MODE
switch
back
to WATT
and
set
the
Range
Calibrator RANGE switch
to
the
next
setting
specified
in
Table
4-2
(100
µW).
Repeat
steps
10
and
11.
13.
Repeat
steps
10
and
11
at
each
range
setting
specified
in
Table
4-2.
Table
4-2.
Instrument
Accuracy
Test
Results
(P/O
Errata)
Range
Calibrator
Results
Range
Calibrator
Results
and
[Watt
Mode)
and
(dBm
Mode)
Power
Meter
Power
Meter
Range
Min.
Actual
Max.
Range
Min.
Actual
Max.
lOµW
9.95
10.05
-20dBm
-20.02
-19.98
lOOµW
99.5
100.5
-lOdBm
-10.02
-9.98
lmW
0.995
1.005
OdBm
-0.02
0.02
3mW
3.14 3.18
+5dBm
4.98
5.02
lOmW
9.95
10.05
+lOdBm
9.98
10.02
lOOmW
99.5
100.5
+20dBm 19.98
20.02
14.
Set the Range Calibrator RANGE switch to
-10
dBm.
15.
Set the Power
Meter
MODE
switch to dB [REF] and verify
that
the digital readout
indicates
0.00
±
0.01.
16.
Set the Range Calibrator RANGE switch,
in
turn, to
-20
dBm,
-5
dBm, and
+10
dBm.
Verify
that
the Power Meter autoranges properly,
and
that
the indication observed on
each range
is
within the limits specified in Table
4-3.
Table
4-3.
Instrument
Accuracy
Test
Results
for
dB
(REF]
Mode
Range
Calibrator
Results
and
Power
Meter
Min
Ranges
Actual
Max
-20dBm
-9.96
-10.04
-5dBm
+4.96
+5.04
+lOdBm
+19.96
20.04
4-5