User`s manual

Piranha HS 4x User’s Manual 31
DALSA Corp. PRELIMINARY 03-32-10040-03
Setting Analog Gain
To set the analog gain portion of the camera, use the command:
Syntax:
sg t i
Syntax Elements:
t
Tap value. Use 0 for all taps or 1 to 4 for individual tap selection.
i
Gain setting. Allowable range is –10 to 10dB. For nominal gain,
set to 0.
Example:
sg 0 2
Setting Analog Offset
To set the analog offset of the camera, use the command:
Syntax:
sao t i
Syntax Elements:
t
Tap selection. Allowable range is 1 to 4, or 0 for all taps.
i
Analog offset value. Allowable range is 0 to 1023.
Notes:
• The offset increases linearly with higher values. A value of
100 does not equal an offset of 100DN.
• The resulting analog offset value depends on other camera
parameters such as temperature, line rate, and gain.
Example:
sao 0 200
Subtracting Offset or Background
To subtract the video scene offset or any other background from the output video signal, use the
command:
Syntax:
ssb t i
Syntax Elements:
t
Tap selection. Allowable range is 1 to 4, or 0 for all taps.
i
Subtracted value in a range from 0 to 511.
Notes:
• When subtracting a digital value from the digital video signal
the output can no longer reach its maximum. Use the ssg
command to correct for this. See page 32 for details on the
ssg command.
Example:
ssb 0 20