FuTz

I'm sorry I was away for a couple of days.. I contacted TongliTech which are manufacturing that dvr.. and they said (i didn't know earlier) "You can backup to AVI, when you backup video file, you can choose IFV or AVI, please try it." And it does the work. When I'm working backup to a computer file over LAN, i can choose to convert to AVI and it works great! Only when i'm manually recording on a client's software then it's impossible to record to avi, only to ifv, and there's a client software which is driving me crazy on windows7 (older version and i can't find a version which works on win7, even in compatibility mode it crashes whole time)). No matter. I don't need to record manually 'cause i've configured motion detection on cameras, and then if i need to download an avi file to computer because of archive or something else, it's not a problem. friend @rucucu77, you have to set an local ip addres (in your local network) and then set a NAT-ing to that ip.. (port forward) DMZ is not needed in your situation.. if you can access it locally, then remotelly has to work too, but be sure you're using WAN ip, not local ip, 'cause you can't access local network from out of your local network ..

Hello, I have one question about my dvr.. it's an dvr from ebay: Everything is great, except one thing, it saves video in ".ifv" format and i can play it only by using chinese software and i can't view it by another program, i tried to find some converters - but unfortunatelly i can't find one.. Is there any chance to convert it to any standard video format? This chinese program crashes whole time on Windows7.. :/ This is only when i record with pc client or via IE - same format, ifv.. When i'm backing up video from dvr i can chose avi or ifv.. Only thing is i want to, when i'm recording remotely, how to record direct to avi? or to convert from ifv to avi..

I'm sorry I was booring with mean I can resolve it somehow.. and I very very appreciate on your long post and explanation what you gave me. My cctv installation is very good maked, so i will isolate this with putting individual adapter on every camera. Reason why i bought cheap cameras is that that i had a very low budget, and i had to put this camera - but except that ground loop problem - everything is ok. I'll put power bar with 8 sockets and 8 adapters with power supply 12V, 1A per each camera and that will solve my problem. Thank you mate, you've been very helpful person.

Here's an explanation: 12V, 5A - 2 or more cameras connected - there's a ground loop problem (lines scrolling, (scrolling bars)) 12V, 1A - one camera, one adapter, everything works great! When i'm using coax and shared power supply - 12V, 5A, everything works great too.. the main problem is in baluns i think.. :-/

Thanks everyone for helping me. So, in this situation with shared ground cameras, central power supply, and using baluns, only what I can do is connect every camera to individual supply? Well, if i used coax in my installation, everything will be ok with central power supply? Thank you!

Price on ebay is almost same for individualy buying 12V 500mA adapters (3.5$), and for ground loop isolators (3.5-5$) / per pc. I think i will take 8 pcs of adapters, because i know it will work 100%. But one question, is this a normal behaviour in cctv installations? How people resolve this case if using power box with 8-16 outputs.. or it's only in camera and their power regulator and normally, video and power ground are separated, not together. Main question is, how to isolate this problem in the future? To use 220V AC cameras or to use ground loop isolators? Thanks everyone!

I was playing arround today with this problem, even powering power supply from a diffent socket, and powering dvr, cameras and monitor from the SAME socket, same problem. When I connect every camera on their supply, it works perfect. I was ordered baluns like that you put a picture of it, and i suspected it was a problem with a balun, i dissambled it and there's nothing in it.. - new balun which i'm using it now - A REAL with with coil inside On the photo at top (with wire) But almost same problem - interfections decreased a little bit.. Solve for the problem is: 1. ground loop isolators 2. powering each camera with individual power supply 3. ?? (is there any) Edit: forgot to mention: i'm using 1pair (2 wires for connecting a balun, same color for + and - on both ends)

Hello, I have installed an mini cctv house system, with 8 cameras + dvr. It's a cheap cameras from ebay (25$), and how i read about them, video and power ground is shared. I'm runing cat5e with baluns, but no more than 120ft of cables, and power is shared from one 12V 5A PSU. When 2 or more cameras, on the individual power supply, there's no picture scrolling bars and other interferences.. what to do? Is the best way to use individual power supply for all cameras (8 cams, 8 supply) or to buy ground isolators... or there's some other solution? Cheap... Thanks for understanding.. Best regards from Croatia