HP 83481A, User Manual, Page: 80 / 98

Specications and Characteristics
Specications
Optical Channel
Bandwidth (0 3 dB) dc to 2.85 GHz (dc to 3.0 GHz characteristic)
Maximum Specied P eak Input P ower
1
Continuous W ave 0.6 mW (0 2.2 dBm)
Modulated 0.4 mW (0 4 dBm)
dc Accurac y (single marker
2
)
3
6 0.4% of full scale 6 6 W
6 3% of (reading 0 channel oset)
6 (2%/ C) (1T
cal
4
) (reading) 0 0.4%/hr (1Time
5
) (reading)
dc Dierence
3
(two marker accurac y , same channel
2
) 6 0.8% of full scale
6 3% of delta marker reading
6 (2%/ C) (1T
cal
4
) (reading) 0 0.4%/hr (1Time
5
) (reading)
T ransition Time (10%{90%
calculated from T =0.48/BW optical)
245 ps, unltered mode
RMS Noise , 2 GHz or ltered mode
T ypical < 1.5 W
Maximum < 2.5 W
Scale F actor (full scale is eight divisions)
Minimum 5 W/div
Maximum 100 W/div
dc Oset Range +0.2 mW to 0 0.6 mW (referenced to two divisions
above bottom of screen)
Connector T ype 9/125 m single mode , user selectable
connector option
Input Return L oss 33 dB (HMS-10/HP connector)
1 Exceeding the specied input power level will cause waveform distortion.
2 Referenced to average power monitor .
3 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.
4 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.
5 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.
4-6