Keysight Technologies N5247B, Service Manual

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Keysight N5247B Service Guide 3-43
Tests and Adjustments
Performance Tests
Dynamic Accuracy at Low Frequency (Available with LFE Option
205/220/420/425)
1
This description applies to all instruments with low frequency extension (LFE)
Option 205, 220, 405, 420, and 425.
Function of the Test: This test will be set to the LFE path at 99.6 MHz. The test
procedure is the same as the Dynamic Accuracy test process except that the
LFE test process uses a 2-channel function generator as the source which has
sufficient power range to cover each power step. Therefore a test set is not
required.
Specification Tested: Dynamic Accuracy at Low Frequency
Equipment Used:
— Function generator (33622A)
— Power splitter (11667B)
— Fixed attenuator (10dB x2) – (8493C Option 010)
— Four test cables
Description of the Test:
1. Your model PNA may not have available all of the LFE Options listed.
Due to the complexity of the PNA family of analyzers, the following notes
apply to illustrations in the PNA Help:
—
Only a single representative model will be shown.
— Some illustrations may differ than those in TME.
— If the test procedure applies to multiple ports, illustrations will show
the setup on only one test port.
—
Setups for some option configurations may not appear in the Help.
For the two cables between the power splitter and attenuators, choose
short but flexible cables.