12. Trace Noise; Description; Test Equipment - Keysight E5071C ENA Service Manual

Performance Test

12. TRACE NOISE

12. TRACE NOISE

Description

This test checks the trace noise level for each test port of the E5071C. The
trace noise levels for S12, S21, S34, S43 are quantified by performing a
"through" measurement 32 times over the full frequency range of the analyzer
with a cable connected between two ports. The trace noise level for S11, S22,
S33 and S44 are quantified by performing a "short" measurement 32 times
over the full frequency range of the analyzer with a cable (terminated with
"short" device) connected to each port (1,2,3, and 4).
Standard deviation of the measured values at each frequency is calculated and
then translated into a noise level expressed in magnitude (dB rms) and phase
(deg rms).

Test equipment

Test Equipment (DSG)
Type-N Cable (Cable N:M-N:M 1)
Type-N (f) Short Termination (N/A)
3.5 mm Cable
(Cable 3.5 mm: M-3.5 mm:M 1)
3.5 mm (f) Short (N/A)
3.5 mm (f) to 3.5 mm (f) adapter
(Adapter 3.5 mm: F-3.5 mm: F1)
Keysight E5071C ENA Network Analyzers
1
1. The DSG (Device Substitution Group) is listed below the equipment description, if
applicable. These devices are required to be mapped in TME to execute a test.
DSGs require either GPIB communication or are important for dynamic measure-
ment uncertainty calculations. N/A refers to required equipment that is not mapped
as DSGs in TME.
2. Over 8.5 GHz are Options 2D5/2K5/4D5/4K5.
3. Up to 8.5 GHz are Options
230/235/430/435/240/245/440/445/260/265/460/465/280/285/480/485.
Model Number Over 8.5
GHz
Option
8120-8862
85032-60009
8121-1834 X
85052-60007 X
85027-60005 X
Up to
8.5 GHz
2 3
Option
X
X
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