IF Bandwidth Filter Switching Uncertainty Performance Test

(M9391A)

This test measures the amplitude error when switching between the different IF Paths. The signal amplitude that is measured in each IF Filter Path is normalized to the 40 MHz path. The test is performed in a 10 MHz RBW. The SFP limits the Span/RBW ratio to 100.

The M9391A has four IF Paths:

Option

IF FilterPath

Analysis BW

IF Frequency

Standard

15 MHz

15 MHz

326 MHz

B04 (on all units)

40 MHz

40 MHz

240 MHz

B10

160 MHz

100 MHz

300 MHz

B16

160 MHz

160 MHz

300 MHz

 

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Required Test Equipment

Test Equipment

Recommended Models1

Signal generator

M9381A Opt 1EA

Fixed attenuator, 10 dB

8793C Opt 010

Frequency reference module

M9300A
  1. Refer to the main required equipment list for alternative models.

Connections and Setup Procedures

The illustrations below show the recommended M9381A PXIe signal generator. If your setup is using the alternative M9380A PXIe signal generator, refer to the M9380A Startup Guide for the default cable interconnections.

IF Bandwidth Filter Switching Uncertainty
(using a PXIe signal generator as the source)

IF Bandwidth Filter Switching Uncertainty
(using a PSG-D signal generator as the source)