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Gain

Parameter # F4h F0h A7h
This parameter only applies when Decoding or Image Capture Autoexposure is disabled. Gain is a means of
amplifying the raw image data before it is converted into 8-bit grayscale values. Increasing the gain increases
brightness and contrast, but also increases noise (undesired electrical fluctuations in the image) which makes the
image less attractive and/or harder to decode.
To set the manual gain, scan the bar code below followed by 3 bar codes from
the range of 1 to 100, representing the value. The default is 100.
Set Gain
Exposure Time
Parameter # F4h F1h 37h
This parameter only applies when Decoding or Image Capture Autoexposure is disabled. It configures the
exposure for both Decode and Snapshot modes.
Each integer value represents 100 μs worth of exposure. The default value is 10 which results in an exposure
setting of 1 ms.
To set the Exposure Time parameter, scan Fixed Exposure followed by four numeric bar codes representing the
value in the range of 1 - 1000. Insert leading zeros if necessary. For example, to set a Fixed Exposure value of
9.9 ms, scan 0, 0, 9, 9. See
Appendix D, Numeric Bar Codes
Imager Preferences 5 - 11
Appendix D, Numeric Bar
for numeric bar codes.
Exposure Time
(4 digits)
Codes, in

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