Recent content by GiovanniG

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    Larsen effect/feedback/tone on the Line IN input on Hiwatch DS-H216QA(B)

    Hi mates, when I enable the audio I have this annoying tone as result, no matter what I connect on line in, connected, disconnected or grounded. How can I get rid of it? The FW is updated V4.70.143 build 230418 It looks like the two way cannel is always enabled and there is an hardware impedence...
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    Expert needed to reduce/eliminate flickering on DVR

    Well, I wanted to reson moe about but if there are no infos, life goes on, I'm happy to confirm that DCDC insulated solved my problem, the images are perfect (even with log cables), max detail and zero noise, so the h265 keeps the bitrate near to few kb/s when there isn't movement. Before h265...
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    Expert needed to reduce/eliminate flickering on DVR

    Hi mates, yes I know how to solve the problem, it's necessary to separate ground of DVR from the ground of cameras, I've just bough 2 not expensive DC/DC with insulation from Aliexpress, on next days I'll implement them and let you know, but I'm sure that will work. By now I've connected the...
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    Expert needed to reduce/eliminate flickering on DVR

    Thanks for answer. I repaeat, with HDD not recording, no flickering. It's doesn't depend on other things, it depends on HDD writes, I'm 100% sure. You probably always use different power adapters for cameras and DVR, in that case the problem will not appear, but you will have very limited...
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    Expert needed to reduce/eliminate flickering on DVR

    I try to buy these DC-DC modules with ground isolation, it shoudl work. Anyway I can't understand how HDD could create these RF interferences. Maybe it can be up to seagate too, as WD probably generate less impact...
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    Expert needed to reduce/eliminate flickering on DVR

    thank you for answers, I upload here a piece of video. No power suplly problems, if I stop record on HDD the flicker disappears, the image is stable as it should Shortly I can assure you no problem of camera, cable (it's FTP + balanced with baluns on both side) of power supply. For me no way...
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    Hi-Watch firmwares, where find them?

    By the time I've found this, I hope it's useful Архив с ftp.hikvision.ru
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    Expert needed to reduce/eliminate flickering on DVR

    Hi, I've the same issue in many systems I realized, the image suffers of flickering, and it is related to the HDD writes, each time HDD writes a flick appears on all cameras, usually the ones with longer distance have a bit less of that. I am using a 12V 10A PSU with a 17Ah battery connected...
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    Hi-Watch firmwares, where find them?

    Hi, I've 2 DVR with some issues, I would first update the to see if the problem solves, in particular for DS-H216UA(B) и DS-H216QA(B) I thank in advance for your kind answers!
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    Vivotek cameras with OnVif movement detector (not working)

    Hi, thanks for answer, NVR4232 4KLS3, yes it has some advanced functions, I'm afraid it can't pocess many cahnnels with that. I have about 12 Vivotek cameras which I need to setup with detection. Anyway thanks for suggetions, I'll have a look
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    Vivotek cameras with OnVif movement detector (not working)

    Hi, I moved from Vivotek IP system (Vivotek cameras+Vivotek VMS free software) to a Dahua NVR, there is no possible with any Vivotek model to receive OnVif triggers about movements, it looks Vivotek uses a property protocol to work with its VMS only. Do you share this? There is any way to...
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    Hi-Watch naming rule

    Hi, I can't find it, only Hik vision.. In particular I would now differences between DS-I250M(C) and DS-I250L(D), apparently the case and IR vs LED backlight, but I would know exacrly what this M(C) and L(D) mean. Thank you a lot
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    How reduce HDD image disturbs, lines appear on video when HDD write, on Dahua XVR

    This time I've tried to instert an heavy inductance on the +12v of HDD line, with 100nF capacitors on on put and output, and also an 1000uF 16V capacitor on output, let's see. The 12V HDD is directly connected to the DVR 12V jack, that's also weird when the power supply charges a battery to...
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    Does HiWatch/Hikvision support AoC from Dahua's cameras?

    Please help me finding answer, thanks
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    Does HiWatch/Hikvision support AoC from Dahua's cameras?

    Hi, anybody can help here? Have you tested it? Thanks
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