tpolus

1 - No I didn't use GV2008 for software compression, as it seems a bit waste of money. However, to save HDD space, beside above mentioned economical 24h recording mode, it is also possible to record for example 9 cams in DVD quality (HW compr. MPEG2 or MPEG4 ASP) and other 6 cams in normal quality (SW compr. GEOH264 or GEOMPEG4..). I suppose these 6 cams quality is the same as GV1480 and other Combo cards. 2 - GV1480 in D1 de-interlaced performs about 95-100 fps. In D1 interlaced it performs about 200 fps. This is from official Geovision documentiation for their GV-DVR rack systems (it disappeared suddenly from their webiste). GV-800 in D1 de-interlaced performs about 25 fps. In D1 interlaced it performs about 50 fps. I confirm these values from my own experiences. Yes, most GV2008/16 24h recording systems truly requires couple TBytes of disk space. It's not a big problem in today's SATA and SATA RAID5 world, but still... I'm waiting for Geovision's GV2016 H264 hardware compression card - this compression method will save lot of disk space while giving similar video quality to GV2008. Until that time, I really recommend using economic 24h recording mode for GV2008 cards. For most systems, it can help reduce disk space needed to reasonable values like 1 TB per month

No, I don't install many GV2008 - they are too expensive for most of my customers (however, today I received info from Geovision with new lower prices for GV2004 and GV2008 card - good news). Unfortunately, it requires much more HDD space than GV800 and GV1480 cards. It's like DVD movie. From my statistics, such configuration: - 1 camera - D1 resolution - DVD quality takes about 20-30 MegaBytes of space per 1 minute, depending on the video complexity of course. Geovision says sometimes it's even 30-35 MB/min. For GV2008/16 camera system it could be even 500 GBytes per day (recording 16 cameras nonstop 25/30 fps). As you can see, it is worth to use economical 24h recording option (25/30fps when motion detected, few fps when no motion detected).

Well, it depends. My observations and experiences: LIVE VIEW: - GV2008 video resolution - same as GV800 and GV1480 - D1 resolution - GV2008 video quality - same as GV1480, which means slightly worse than GV800 - GV2008 video smoothness - much better than GV1480 and GV800, true real time video even with 16 cameras connected, just as good as DVD movie RECORDING: - GV2008 video recording resolution - same as GV800 and GV1480 - D1 resolution - GV2008 video recording quality - slightly better than GV800 and GV-1480, smooth object edges, no visible pixels even on enlarged pictures, perfect color rendering (true colors) - the link I sent you before contains pictures with marked mentioned differences, see once again - GV2008 video recording smoothness - much better than GV1480 and GV800, true real time video even with 16 cameras connected, just as good as DVD movie.

You can see a comparison of GV-800 and GV-2008 here: http://www.polvision.com.pl/files.asp?lang=pl&id=144 (sorry for Polish version, we don't have English version right now, just click POBIERZ button below ZIP icon on the right to download AVI files package). GV-1480 video quality is the same as GV-800. GV-1480 video smoothness is somewhere between GV-800 and GV-2008 so this demo can help you a bit.

Tried the camera on a TV closeby and camera picture is ok? Most probably this is a GV800 card failure after power loss. Ask your GV distributor for a replacement card.

Thanks for the reply Rory I did set up accounts but no joy. I re-installed windows and all is fine now. Somehow the first re-installation must of messed things up but the second one came right. You didn't have to reinstall Windows in such case. You just need to reset account database. You can find a solution here: "I cannot login to MultiCam system. What can I do?" http://www.polvision.com.pl/faqs.asp?lang=en&id=58 or ask Rory to send you a special application made by him.

When it happed to us, we uninstalled & reinstalled Geo like 10X and nothing worked. We eventually had to format and reinstall win then reinstall Geo... This is not neccessary - you can just reset the password database. I know the solution if anyone's interested. But I'd rather not put it here as this is not recommended by Geovision. If you need to reset Geo password, just email me.

I agree - NVT are great devices, yet very expensive. So it is worth to know other options In case you ask, my company specializes in video UTP transmission from more than 10 years, so we established great technology and very experienced people who know almost everything about that stuff. We'd be glad to advice in case any of you need help in achieving long distances via UTP (couple thousands ft) or fiber optics (dozens of km). For example, here is some basic information (FAQ) about UTP transmission (bottom of his page), some of you could be interested: http://www.polvision.com.pl/faqs.asp?lang=en Rory, if you like, I can send you samples from our production. Sorry for being commercial here, but it's always better to know about other existing technologies than NVT and Nitek which are very expensive. I'm really sure you'll be delighted because the quality is astonishing. We have parameters even better than NVT (for example we offer direct distances up to 6000 ft and indirect distances - using 2 relay stations - up to 13000 ft, UTP cat5) and the prices are reasonable so you can save money. See here: http://www.polvision.com.pl/files.asp?lang=en&find={active%20interface} (sorry for eventual language mistakes, we don't have much time to work on English documentation)

Try this player: http://bahamassecurity.com/Geo/GeoPlayer.zip Downloaded the file and unzipped it. Gave me a error message "Comdlg32.ocx" or one of its componenents is not correctly registered and will not startup. Please help. Thanks in advance. Well... don't know the reason, but I'm sure Rory can help you: http://www.bahamassecurity.com/contact.htm or contact him via private message: http://www.cctvforum.com/privmsg.php?mode=post&u=29.

Try this player: http://bahamassecurity.com/Geo/GeoPlayer.zip

From what I know, GV2004 (4 cams) is not stackable (for 8 cams you can use one GV2008 card). For 16 cams, two GV2008 stacked cards can be used.

So are you saying that the MultiQuad output looks better than the TV out on the Combo Card? No, MultiQuad output looks pretty much the same as Combo TV output. In my opinion, it's better than GV-Combo's live view because it's not digitized and compressed.

You are right, I can also see that some objects are shrinked in comparison to GV800 recording. However, I'm 100% sure both cards recorded in 720x576 PAL D1. Maybe Save as AVI option shrinked it... (but why and why only for GV2008?)

GV-2004 and GV-2008 (require 8.1 software) are completely new products in Poland and 8.1 Polish is still in beta. Therefore, we currently have few installations. GV-800 and Combo rulez

Everything was in D1 resolution (720x576 - full PAL)

Okay, I'll prepare some MPEG2 samples on Monday. Done. Here are some pictures to compare GV800 and GV2008 quality: http://temp.polvision.com.pl/geovision/gv-800%20vs%20gv-2008%20pics.zip Camera is 470 TVL. I know - could be better. And here is full MPEG2 video from this PTZ camera, recorded using GV-2008 card: Mirror1) http://www.geovision.com.tw/geo/temp/MPEG2_sample.Avi Mirror2) http://www.fingerprint.com.pl/tomek/MPEG2_sample.avi

Okay, I'll prepare some MPEG2 samples on Monday.

Live video: - same as in Combo cards, very smooth, picture quality a bit worse than GV800. Recorded video: - smooth as live view, better than GV800 - picture quality MPEG4 same as GV800 - picture quality MPEG2 (VCD or DVD) - much greater DVD quality + possibility to export recorded images to a DVD-Video disc. Huge storage neccessary however. AND finally you can create 16 channel system, 400 fps, PAL D1 resolution, using two GV-2008 cards. GV-1480 couldn't do it (CIF resolution only).

I had very similar problem. Task Manager showed me GV600.exe started up and closed in just 2 seconds. No error messages. Uninstall, delete files and drivers, install again = no result. Replace install = no result. After 2 hours I found a solution - with passuninstall I erased my password database and suddenly everything worked like a charm.

Unfortunately, installation is always in English

Exact upgrade to GV900 is GV1240. You can of course buy GV1480 if you want. Month ago Geovision stopped their card exchange program, Until then, you could have exchanged GV900 into GV1240 for about 800 USD. Now you need to buy new GV1240 card and sell or trash GV900

That should work too, but I prefer to add DVR's IP address or DNS name to the Trusted zones in Internet Explorer. It's even recommended for security reasons if you're also using DVR PC as a typical workstation.

Probably because Geo's FTP website is overloaded. Too many customers wanted to download 8.1.

I cannot login to MultiCam system. What can I do? http://www.polvision.com.pl/faqs.asp?lang=en&id=58

Please try to record this and send us the link so we could see.