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Harmonic Distortion Test
Test Method
This test measure the second harmonic distortion of the LO Output of the M9302A LO module.
Limitations and Considerations
Methodology
This measurement is made using a signal analyzer. However, the signal analyzer frequency response is calibrated
using a two-resistor splitter and a power sensor prior to measuring harmonic distortion. To provide more isolation
at the signal analyzer, a 10 dB pad is used.
Higher Order Harmonics
This test assumes that the second harmonic distortion is worst case. That is, the higher order harmonics are of
lower amplitude than higher order harmonics and are not measured
Specification
Table 1
Harmonic Distortion
≤ -20 dBc
≤ -12 dBc
Equipment
Table 2
Equipment
Signal Source
Signal Analyzer
Power Meter
Two-resistor Splitter
Power Sensor
Fixed Attenuator
Adaptor, 3.5 mm (m) to Type-N (m)
Cable, 3.5 mm (m) to 3.5 mm (m)
Agilent M9302A PXI Local Oscillator Service Guide
Conditions
3 to 6 GHz
>6 GHz
Supported Models
Agilent E8267D; E8257D
Agilent E4440A; N9030A Opt 526
Agilent N1914A; N1912A; E4419B
Agilent 11667B
Agilent N8485A
Agilent 8493C Opt 020
1250-1743
11500E/F; 8120-4921
Source
M9302A Data Sheet
Performance Verification Tests
27
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