Actually I noticed the same thing some time ago, but when I went to the Setup/Image Setup menu and pushed the Reset Default button the problem seemed to disappear (at least for a while)
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Thanks Popovice.

After the Reset Default button pushed, I tried some combinations and found out that 'Anti Flicker' is the problem.
I found out that 'Anti Flicker' option in Setup/Image Setup, if ON it make a white noise in daylight, if OFF it’s better and I can see live streaming of outside.
Has 'Anti Flicker' in daylight a bug?
The best solution for white noise in daylight is:
- Exposure Mode: Customize1
- Shutter min/max: 1/10000