Martox

So I’m redoing my cctv at my business and my old system had a row of ports for cameras and for each port it had a loop port to display on our spot monitor to customers. The new DVR I have in does not have the row of loop ports and now I have to split the video feed I want to display manually right? So I’ve now bought a BNC 4Port output splitter box but problem is the output is noisy and barely any signal can be read, I can just barely sometimes make of the image. Does anyone have any experience in adding loops to DVRs that do not come with loop? Output is directly into a monitor and not another DVR. BNC Splitter bo: https://www.ebay.com.au/itm/322494132092?ul_noapp=true

Is that not just the splitter box that I bought and linked? It’s 1 in 4 out, but my issue is that the output is clearly duplicated and displayed on a DVR but directly plugged in to a monitor and the signal is heavily interfered. When I found the splitter box I really thought all my prayers had been answered.