Specifications

Frequency Response 300 kHz to 3 GHz Performance Test
Agilent Technologies
PSA Series Spectrum Analyzers
Test and Adjustment Software
Frequency Response 300 kHz to 3 GHz
Performance Test
Frequency Response (or flatness) is defined as the amplitude deviation from the reference
value at 50 MHz. The complete E444XA Frequency Response is measured with three
different tests;
● Frequency Response Below 300 kHz
● Frequency Response 300 kHz to 3 GHz
● Frequency Response Above 3 GHz
The Frequency Response Below 300 kHz test is used to verify flatness from 10 Hz to 300
kHz. The 300 kHz normalized error from the Frequency Response 300 kHz to 3 GHz test
is used as the reference point for the Frequency Response Below 300 kHz test.
The Frequency Response Above 3 GHz test verifies flatness from 3.0 GHz up to 50 GHz,
depending on your instrument frequency range.
This test measures Frequency Response 300 kHz to 3.0 GHz with the preamplifier (Option
1DS) off and on, in AC coupled mode, and with 10, 20, 30, and 40 dB of attenuation. For
each test frequency, the amplitude error is normalized to 50 MHz, and the result is called
Frequency Response.
This test has three sections. The first section measures the flatness from 300 kHz to 3 GHz
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