Satir UTR, Руководство пользователя, Страница: 9 / 22

SATIR UTR
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Internal/external reference
Internal or external reference can improve image quality and reduce the
pattern noise and image quality degrading which due to the environment
change. The device will execute the internal reference several times when
booting. You can execute the reference manually if you found the degradation
of image quality. Press the “A” key to execute the internal reference and it is
normal that the image will pause briefly during the internal reference process.
Press and keep holding the “A” key, the device will execute the external
reference automatically and the screen will show words “External B.REF”.
Close the lens cover before the external reference and it is no need to execute
the internal reference after the external reference.
If you observe from indoor to outdoor and there is a large difference in
temperature of indoor and outdoor and the effect of external reference is not
ideal, you can use the background with uniform temperature distribution and be
full of the screen to replace the lens cover to executed the external reference,
like the cloudless sky, wide area wall, ground, etc. Internal and external
reference is an important method of image quality adjustment that is necessary
to do repeatedly.
The effect after the internal or external reference calibration is shown like
the following pictures.
Before calibration After calibration
Comparison of Internal/external reference calibration before and after