Agilent Technologies PSA Series Manual page 366

N5531S Measuring Receiver Performance Verification
Performance Verification Tests
Table 8-1 Test Equipment
Instrument
Synthesized Signal Generator
Calibrated Attenuator
10 dB Attenuator
(2 each)
Attenuator Switch Driver
Cable,
3.5 mm (m) to 3.5 mm (m)
Cable,
BNC (m) to BNC (m)
Adapters
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Critical Specifications
(for this test)
Frequency 50 MHz
Amplitude drift with temperature:
Must not drift > 0.01 dB /degree C
0 to 50 dB range in 10 dB steps.
Calibrated at a metrology lab at 50 MHz.
VSWR at 50 MHz: <1.05:1
Example of calibration detail for the attenuator
used in this test:
"Using a dual-synthesizer, parallel
IF-substitution method. NIST traceability
achieved through a calibrated 1 kHz Ratio
transformer.
Cal frequency 50 MHz.
A minimum of six measurements were made at
each attenuator setting to find the mean value of
"measured change in insertion loss" and to
estimate the Standard Deviation of this Mean."
Also see Table 8-5, "Example Test Record,"
an example of calibrated attenuation and
attenuator uncertainty values.
Used to minimize mismatch uncertainty.
Connected to both ports of the step attenuator.
Used to drive attenuator
High quality cable that is repeatable (can be
bumped or bent slightly and not cause measured
value to change).
DC to 26.5 GHz
92 cm (36 inches)
Insertion loss ~2 dB
For connecting time base of PSA to source 10
MHz input.
120 cm (48 inches long)
Recommended Model
Agilent E8257D with UNR or
UNX (ultra low phase noise
performance) and option
1EH, (Improved Harmonics
below 2 GHz)
Agilent 8496G
for
Agilent 8491A
Agilent 11713A
Agilent 8120-4921
Agilent 10503A
Chapter 8