noblecctv

Hi new to the forum old to CCTV is anyone having any issues with the new HQHI range of HIK turbo DVRs ? I have got a site that I've just upgraded from an older 8 way HIK turbo DVR to a 16 way HQHI DVR and the turbo cameras that are furthest from the DVR are going between back and white and colour (have checked all day night settings in the cameras and its nothing to do with that) I reckon the new DVRs must be more sensitive to any volt drop on the video signal.