Agilent Technologies 4294A, Programming Manual

Page: 96 / 518

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