Agilent Technologies 4294A Service Manual download pdf (Page 96)

96 Chapter 7

Processing Measurement Results

Reading Measurement Data at Specific Measurement Points (Using the

Marker Function)

Reading Measurement Data at Specific Measurement Points

(Using the Marker Function)

You can use the marker to read measurement data at specific points on the trace or search

for the point that meets a specific condition such as the maximum value. You need to use

the following command to turn ON the marker before using it.

• “MKR” on page 350

You can use the main marker (marker No. 0; hereafter referred to as the marker) when you

execute the above command. To use one or more submarkers (markers No. 1–7), use the

following command to turn them ON:

• “SMKR{1-7}” on page 438

You can also use the Δ marker to obtain the result of subtraction of the Δ marker-specified

value from the marker- or submarker-specified value or the difference between these

values. Use the following command to turn ON the Δ marker:

• “DMKR” on page 302

When you turn ON a submarker or the Δ marker, it appears where the marker is currently

located.

Moving the marker

Moving the marker to specific points

Use the following commands to move the marker, one of the submarkers, or the Δ marker

to a desired measurement point or sweep parameter value on the trace:.

Moving after search for positions that meet specific conditions

Use the following command to search for and move the marker to specific positions on the

active trace such as maximum value, minimum value, peak, and measurement parameter

value (target) specified with the

“SEATARG” command (page 433):

• “SEAM” on page 427

When the active trace has two or more peaks or targets, the search is made as shown below

after execution of the above command.

Peak Maximum peak (minimum peak if the peak has been defined as

negative peak)

Target Target closest to the current marker position

You can use the following commands to sequentially search for the remaining peaks or

targets.

Specific Measurement Point Specific Sweep Parameter Value

Marker “MKRP” on page 357 “MKRPRM” on page 358

Submarker “SMKRP{1-7}” on page 439 “SMKRPRM{1-7}” on page 440

Δ Marker “DMKRP” on page 304 “DMKRPRM” on page 305

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Agilent Technologies 4294A Service Manual Page 96