andrewinpopayan

Handbags at dawn

I don't know if this has been asked before, I have had a look through a lot of posts but can't find a situation that is the same. I want to run 5 cameras (each with own seperate power supply) and run the video output up each twisted pair of cables. I will put a balun at each end of the pairs and feed video into a DM DVR. Am I looking to get a lot of crosstalk and problems? Thanks in anticipation. Andrew Further note. After hooking everything up I have a >lot< of noise/bars etc, could it be an effect of living within 200m of a National grid HV pylon and my cables running more of less parallel to the pylon cable run??

http://www.ebay.co.uk/itm/271098287762?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649 These arrived today and make a WHOLE world of difference.

I just bought a full set of these. http://www.ebay.co.uk/itm/271098287762?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649 I take it that you are in the USA Yakky?

Yeah : lol, I will buy a good one and pull it apart, I don't think theres anything complicated inside, maybe a few turns of wire on a ferrite core/bead. cost pennies to make. I'll let you know what I find. Andrew

Sheeet they do, feeling that these are crappos errr f*ctover additional afterwards (twat$)

yeah cheers yakky, these are el-cheapo fleabay one's. I have a spare one so I might prise it apart and take a look. Andrew

I have sorted out a camera that was causing most of the noise/hum, it was an old mains powered unit that had gone sick, worked ok but put hum on the line. thanks for all the answers/suggestions Andrew

Thanks for the reply. They are all powered from seperate supplies, 12 volt 1amp switch modes "wall warts" I have a stack of 12 volt alarm batteries, I will try running the cameras on them and see if it makes any difference. Andrew

Hi there, I have been lurking for a long time in this and the "dedicated micros" repair forum in order to glean information to repair my DM. The DVR is a DS/DX16c that I bought offa fleabay cheaply, 2 days later the HD went down. The problem of reformatting the drive was >slightly< compounded by the fact this is a LINUX based household, no M$ here To cut a long story short I put my hands on a pair of Western HD's of 80Gb each, fiited one out as a slave and hooked it up as "primary slave" in my PC system, patitioned it as FAT32 using "KDE partition manager", I then added the DM archive called "DS_DVTR2_(021)_.zip" to the drive and unzipped it all onto the drive.. I closed my PC down, removed the drive, removed the jumper from the drive and put the drive into into my DVR. Well it now works GREAT, a big thanks to all " title="Applause" /> who post usefull info on here. Regards Andrew