To Determine Number Of Samples And ∆T - Agilent Technologies 89410A Operator's Manual

Creating Arbitrary Waveforms
To determine number of samples and ∆t
If you are using a waterfall or spectrogram display to import data from
your computer-generated waveform, the waterfall or spectrogram must have
the same number of samples and ∆t as your computer-generated waveform,
as explained in "To create a fixed-length waterfall display."
The time-interval between points (∆t) is calculated according to the
following
formula:∆ t =
( frequency span ) × n
The number of points (samples) in a time record is easy to determine with
the right configuration. With [
softkey determines the number of points, as shown in the following table
(all softkeys are located under the [
Time Record Length Using [rbw coupling auto] And [rbw mode arb]
Number of Frequency Points
(value of [num freq pts] softkey)
51
101
201
401
801
1601
3201
The numbers in the above table are valid only when [
[ ] are selected. For any other combination of rbw coupling
rbw mode arb
or rbw mode, you must measure the time-record length and use the
following formula to determine the number of samples in a time
record:
Time record length
Number of points =
6-14
1
where n =
] and [
rbw coupling auto
] hardkey).
ResBW/Window
Time-record Length (in points)
Zoom Baseband
64 128
128 256
256 512
512 1024
1024 2048
2048 4096
4096 8192
∆ t
1.28 for zoom measurements
2.56 for baseband measurements
], the [
rbw mode arb num freq pts
] and
rbw coupling auto
]