Specifications 1
Keysight N8262A Service Guide 37
System Specifications and Characteristics
The video bandwidth in the meter can be set to High, Medium, Low, and Off. The
video bandwidths stated in the table below are not the 3 dB bandwidths, as the
video bandwidths are corrected for optimal flatness (except the Off filter). Refer to
Figure 1-2 for information on the flatness response. The Off video bandwidth
setting provides the warranted rise time and fall time specification and is the
recommended setting for minimizing overshoot on pulse signals.
Table 1-1 Dynamic response - rise time, fall time, and overshoot versus video bandwidth
settings
Video band width setting
Parameter
Low Medium High Off
5 MHz 15 MHz 30 MHz <500 MHz >500 MHz
Rise time/
fall time
[a]
<56 ns <25 ns <13 ns <36 ns <13 ns
Overshoot
[b]
<5% <5%
[a] Specified as 10% to 90% for rise time and 90% to 10% for fall time on a 0 dBm pulse.
[b] Specified as the overshoot relative to the settled pulse top power.
For option 107 (10 m cable), add 5 ns to the rise time and fall time specifications.
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