HP 83481A, User Manual, Page: 78 / 98

Specications and Characteristics
Specications
V ertical specications
Electrical Channel
Bandwidth (0 3 dB) dc to 12.4 or 20 GHz, user selectable
dc Accurac y|single voltage marker
1
12.4 GHz 6 0.4% of full scale
6 2 mV 6 1.5% (reading 0 channel oset)
6 (2%/ C) (1T
cal
2
) (reading) 0 0.4%/hr (1Time
3
) (reading)
20 GHz 6 0.4% of full scale
6 2 mV 6 3% (reading 0 channel oset)
6 (2%/ C) (1T
cal
2
) (reading) 0 0.4%/hr (1Time
3
) (reading)
dc Dierence|two marker accurac y on same channel
1
12.4 GHz 6 0.8% of full scale
6 1.5% of delta marker reading
6 (2%/ C) (1T
cal
2
) (reading) 0 0.4%/hr (1Time
3
) (reading)
20 GHz 6 0.8% of full scale
6 3% of delta marker reading
6 (2%/ C) (1T
cal
2
) (reading) 0 0.4%/hr (1Time
3
) (reading)
T ransition Time (10%{90%)
calculated from T =0.35/BW , typical
12.4 GHz 28.2 ps
20 GHz 17.5 ps
Maximum Noise (RMS)
12.4 GHz 0.5 mV (0.25 mV typical)
20 GHz 1 mV (0.5 mV typical)
Scale F actor (full scale is eight divisions)
Minimum 1 mV/div
Maximum 100 mV/div
dc Oset Range 6 500 mV
1 It is recommended that a user vertical calibration be performed after every 10 hours of continuous use or if the temperature has changed b y greater than 2 C
from the previous vertical calibration.
2 Where 1T
cal
represents the temperature change in Celsius from the last user vertical calibration. Note that the temperature term goes to zero upon
execution of a vertical calibration.
3 Where 1Time represents the time since the last user vertical calibration. The uncertainty due to time typically stabilizes after 24 hours. This term goes to
zero upon execution of a vertical calibration.
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