This topic page applies to all supported ENA models in both the Factory Recommended and the Normal Variant test plans.
This test checks the trace noise level for each test port of the ENA. 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 E5080A ENA requires a special semi-rigid cable for the through measurement that will improve the stability of the test result. Refer to the equipment list below.
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 |
Recommended Model Number2 |
E5071C > 8.5 GHz |
E5071C ≤ 8.5 GHz |
E5080A |
---|---|---|---|---|
Cable, Type-N (m) to Type-N (m) |
8120-8862 |
|
X |
X |
Cable, test-port through cable assembly, 81.2 mm
|
E5080-65151 |
|
X |
|
Cable, test-port through cable assembly, 203 mm
|
E5080-65152 |
|
X |
|
Cable, test-port through cable assembly, 284.2 mm
|
E5080-65153 |
|
X |
|
Cable, 3.5 mm (m) to 3.5 mm (m) |
8121-1834 |
X |
|
|
Short termination, Type-N (f) |
85032-60009 |
|
X |
|
Short, 3.5 mm (f) |
85052-60007 |
X |
|
|
Open termination, 3.5 mm (m) |
85032-60007 |
|
X |
|
Adapter, 3.5 mm (f) to 3.5 mm (f)
|
85027-60005 |
X |
|
|
|
|
|