N5511A Phase Noise Test System User’s Guide 117
Absolute Measurement Examples
Dual Channel (EFC)
Dual Channel (EFC)
A key feature of the N5511A PNTS is the ability to cross-correlate noise. Using
two channels instead of one can allow for a faster measurement when
measuring a high performance DUT. A two-channel measurement requires two
references and the DUT.
This example steps through measuring a E8257D PSG UNY as a DUT, using
two other E8257D PSG UNYs as references.
Required equipment
— Keysight N5511A Phase Noise Test System
— Keysight E8257D PSG UNY signal sources (x3), one PSG acting as a DUT
and the other two as references (REF) with external frequency control (EFC)
capability
— 3.5 mm cables (x5)
— BNC-to-BNC cables (x2)
— Oscilloscope: Keysight Infinivision MSO-X 3054A (or similar with
high-impedance inputs)
— SMB-BNC cables (x2)
— Power Divider (functional at 1 GHz)
Summary of Contents for N5511A
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