Measurement,
Display, and Control
Triggering
Trigger types
Vector signal analyzer Free run, IF magnitude, external TTL
Internal trigger range –65 to +23 dBm for 5 MHz bandwidth
–60 to +23 dBm for 22 MHz bandwidth
Pre-trigger delay range 4.5 ms or time capture length, whichever is shorter
Post-trigger delay range 5.2 ms
Trigger hold-off 20 ns to 0.65 ms
Averaging
Number of averages, maximum > 10
8
Overlap averaging 0 to 99.99%
Average types
Vector signal analyzer application rms (video), rms (video) exponential, peak hold,
time, time exponential
Time gating
Provides time-selective frequency-domain analysis on
any input or analog demodulated time-domain data.
When gating is enabled, markers appear on the time
data; gate position and length can be set directly.
Independent gate delays can be set for each input
channel. See time specifications for main time length
and time resolution details.
Gate length, maximum Main time length
Gate length, minimum = window shape/(0.3 x freq. span)
where window shape is equal to:
Flat-top window 3.8
Gaussian-top window 2.2
Hanning window 1.5
Uniform window 1.0
7
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