Specifications

Second Harmonic Distortion (SHD) Performance Test
Agilent Technologies
PSA Series Spectrum Analyzers
Test and Adjustment Software
Second Harmonic Distortion Performance Test
At each test frequency, a signal is applied whose amplitude meets the requirement for the
power at the first mixer. One or more low pass filters are inserted between the source and
the PSA under test to prevent the second harmonic of the source from artificially raising
the second harmonic product as it is displayed on the PSA. The Marker Amplitude
function is used to measure the level of the distortion product and the theoretical Second
Harmonic Intercept point (SHI) is calculated.
To reduce amplitude uncertainty due to flatness, a power meter is used to characterize the
PSA at the fundamental and 2
nd
harmonic frequencies.
Required Test Equipment
Test Equipment Model Number
E4440A
E4443A, E4445A
E4446A
E4448A
Synthesized Sweeper
83630A/B
83640A/B, 83650A/B
X X
Power Meter E4419B X X
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