HP 8753E manual Application and Operation Concepts

Models: 8753E

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Group delay measurements can be made on linear frequency, log frequency, or list frequency sweep types (not in CW or power sweep). Group delay aperture varies depending on the frequency spacing and point density, therefore the aperture is not constant in log and list frequency sweep modes. In list frequency mode, extra frequency points can be deiined to ensure the desired aperture.

To obtain a readout ofaperture..values at different points on the trace, turn on a marker. Then

press m ~~~~~~~~~,~~~~~, Smoothing apedme becomes the adive fun&ion, and a the

~.~..~............... i........ /..A....:..: ..i .:..:...: ..:::: .::::: .:..:::...i;: .*

aperture is varied its value in Hz is displayed below the active entry area.

640 Application and Operation Concepts

Page 321
Image 321
HP 8753E manual Application and Operation Concepts