SunnyKim

If you are to use PCI_E card, there would be almost no limit for video size, say 8 Ch X 960H Resolution, each 30 FPS in real time. I never looked at Zone minder which can compress and decompress up to 16 channels all in real time. Please let me know if they can. Then I will recommend a card for that application

The card that you picked up seems to be a good one. 960H video format capability comes around for 3 years now. That means the chip set itself is new and carrying more new advanced image processing techs. It also has a larger resolution in horizontal width (960HX 576V for PAL or 960H X 480V for NTSC) than the conventional D1 sized (720H X 576V). But note that PCI bus allows 4 Ch channel X 960H video data transfer over PC's system memory. So for 8 channels, Half 960H(480H) can be the maximum. For 16 channels, Quarter 960H (480H X288V) can be the max resolution that can be passed over the PCI bandwidth. Also note that most of cards manufacturer or chipset makers do not support Linux. They only support Windows because PC should be the platform. And PC is the most cheapest solution, ever, for compression/storage and most powerful CPU. Can I ask what kinds of application in your mind?

One more point I have to add, Don The idea behind HD-SDI and HD-CVI, stuffs was to still use the old conventional cables that were already installed. And installers or end users should be more patient, I mentioned.

Dear Don, Just from pure curiosity, I tested HD-CVI Camera over a cheap CCTV cable running 200 meter (say , 600 feet). It starts to lose colors, and failing to lock the video. I guess when they state 500 meter (say 1600ft), it must be tested on a very good cable of no inductance or no capacitance.

That seems 16 Channel DVR for PCI Interface. Pretty much old one and could be very expensive. No more production. 480 /30 FPS means 16 Ch, all in real time, recording and preview. As PCI interface is to be limited, 16 Ch of each CIF size is within its bandwidth. So the quality would not be acceptable in the current viewing standard or trend. You may try http://www.ebay.com/sch/i.html?_trksid=p2050601.m570.l1313.TR0.TRC0.H0.X960H+card&_nkw=960H+card&_sacat=0&_from=R40

Diahua, Hikvision, and all other chip suppliers are going for different their own standards. Compatibility is gone. Never expect greedy chinese players can compromise each other. Even though you may buy rather a better camera at a lower price, you may have to pay higher price for their own DVR. The end-users may need to be patient, not to risk their money.

Because you said the cable is new and fine and power supply to camera is enough, DVR seems to be responsible. That's why I asked twice. What is the video decoder chipset manufacturer inside your DVR Box?

Check "USB -DVR" at internet market. It can support 4 cameras in CIF video size or 1 camera in D1 size. The manufacturer supplies all the softwares that you may need for utilizing your laptop-windows.

The reason I asked the manufacturer of video decoder is that recently some makers start introducing their chip and some are not good, I heard. But 100ft should be OK. We have so far narrowed down to A certain HD-SDI camera is losing sync only during the day but OK at night. What's left? That's connect and try other camera on the same cable. Is there enough power being supplied to the camera? Is there physical problem on the cable?

That's the question I really like to ask. Let's see which one gets the Most? IMO; IP Camera, then HD_SDI, then HD_CVI. But in 5 years, HD_CVI, the most, then IP Camera, lastly HD-SDI.

HD_SDI has been mainly supported from Taiwan and Korean system makers. Now china starts moving into this field. I do not know the reason why. But I can tell you some korean makers, "nadatel", "comart", "samsung techwin" , "pinetron",etc.

Please let me go for more points: 1. Switch your cameras connecting to video input ports of your DVR. If still the camera is in trouble, the camera gets suspicious. Otherwise, the input port of your DVR gets suspicious. 2. What is the cable distance from the camera in trouble to your DVR? Is it the longest one among your cameras? Because HD_SDI works at a very high speed clock rate and can not be stable enough for a long distance, say over 80 meters, where a special signal booster may be needed. 3. Open the box of your DVR. Can you please name the Video Decoder chipset at the front end (near input ports) of the board.

You can turn on -motion event recording option and please make sure your system is OK during the night. Because frame loss can be detected as a motion.

If I am in their shoes, I will give only a year warranty. For the camera of U$30 under, 5 year of warranty kills the company itself. That's a stupid marketing, CNB tech should know.

HD_SDI carries HD raw video data in a bit serial manner. The clocking is above 2 Ghz. So the tuning of parameters of SDI receiver chip set in the DVR becomes very critical and quite dependent on its environment. Sometimes it may lose a locking and gets locked back again, and so on. So I may advise you to contact the DVR manufacturer.

What kinds of camera do you use? IP Camera? HD_SDI camera? or Analog Camera?

The cameras have been working 24/7 days for 5 years. Some of them for outdoors. No PC and TV have been working that hard. It is about time to give them a rest. Start to change them.

No idea of Vintron. Hikvision is one of high brands. But no idea how good they are, to my sorry.

The same brand for all cameras?. Plug a camera output directly into your TV set and check the video quality. Note TV carries the much better video signal processor than stand alone DVR.

All new DVrs now support internet connection and remote view. Analog cameras over 650 TVL provides good quality enough. You can start with 4~ 8 cameras and 16 Ch DVR.

Let me add my 2 cents: It seems Milestone to be a leader in this field. They must have been working on their software optimization and stability. The best could be to check their recommended PC Spec for their software platform. Definitely i5 could be short for your application in mind.

It seems related to the bugs of their firmware that were not fully tested before released. You better contact to the Maker.

shaniandras, There are many threads in this forum, giving answers for " Port Forwarding". Read them and you will understand what's for CCTVFORUM.Com

I agree to GB5102. Camera, in general, has 3 pin interfaces: Two Power Pins (+/-) and One Video Out. Connect only one line of the Video Out of Camera to the BNC Jack of your DVR. Drop the S-VHS cable adapter which might happen, by mistake, to be in the camera package.

The reason why I said " Live Video(not recorded playback) Quality can be the same for both Video Capture Card (software compression) and Capture & Compression (Hardware compression) Card " can be further explained: Both type of cards can capture and send the Live Video (uncompressed-raw) data to PC's system memory via PCI or PCI_E interface. Then CPU sends them to graphic card for display. But some of Hardware compression cards may send only compressed bit stream only, not live uncompressed video data. In this case, the quality of Live View could be worse. Because the CPU has to de-compress the compressed video for display. So, we can not always say that every Hardware Compression Card shows a better quality video for display. In that case, it can be in real time but couple of frame time delay for decompression. Got cleared? As to the market of video capture card, it becomes more than Horror for the chip makers, as the price of standalone DVR goes down so Low. I am regretfully one of them. But I expect all the chip suppliers would be gone away, except mine. I keep waiting for the day would come earlier. The video capturer market would still be there because some system makers can apply their own value added algorithms for higher values, say License Plate Recog, Object Tracking, Motion Detect etc. And PC CPU and Graphic Card gets more powerful as time goes by. That's why I am now developing a chip set applicable for the Hardware Compression Card. The Hardware Compression Card did not seem to have an opportunity for blossom. The market size could be less than 50K per year. It may seem too small for the system makers to take on as a project, even for chip makers.